Обновить UI профиля и навигации

# Conflicts:
#	shine-UI/styles/components.css

AGENTS.md

@@ -45,6 +45,11 @@
   - `docs/Solana_Architecture/README.md`
 - Документ формата пользовательской PDA-записи `shine_users` находится в:
   - `shine-solana/shine/doc/formats/shine-user-pda-format-v.1.0.md`
+- Актуальная документация по серверному модулю синхронизации Solana users находится в:
+  - `docs/Solana/SOLANA_USERS_SYNC_MODULE_DESIGN.md`
+- При любом изменении логики серверной синхронизации `shine_users`, её таблиц PostgreSQL, checkpoint-механизма, startup/lifecycle или deploy-настроек обязательно обновлять:
+  - `docs/Solana/SOLANA_USERS_SYNC_MODULE_DESIGN.md`
+  - `deploy/SOLANA_USERS_SYNC_SERVER_SETUP.md`
 
 ## Документация блокчейна
 - Актуальная документация по форматам блокчейна находится в `docs/Blockchain/README.md`.
@@ -79,12 +84,8 @@
 - Для экранов регистрации, входа и других чувствительных UI-flow по умолчанию переносить экраны в Figma по одному, а не пачкой, если пользователь отдельно не подтвердил иной способ.
 
 ## Версионирование
-- Единый файл версий проекта: `VERSION.properties` (в корне репозитория).
+- Все правила по коммитам, merge в `main`, `git push` и обновлению `VERSION.properties` находятся в `COMMIT_AND_VERSION_RULES.md`.
-- Перед каждым новым коммитом обязательно увеличивать версии в `VERSION.properties`:
+- Этот файл считать единым источником истины по правилам версионирования и коммитов для данного репозитория.
-- `client.version` — версия клиентского UI.
-- `server.version` — версия серверной части.
-- Базовое правило инкремента: `+1` по последнему числовому сегменту (patch), если не оговорено иное.
-- Обычные коммиты делать стандартным `git commit`; переменная `$GITEA_TOKEN` для коммитов не нужна и не используется.
 
 ## Deploy
 - Все документы, инструкции, backup-правила и скрипты деплоя хранить в папке `deploy/`.
@@ -93,7 +94,6 @@
 - Тестовые/devnet серверы SHiNE: `t1.shineup.me`, `t2.shineup.me`, `t3.shineup.me`, `t4.shineup.me`.
 - В deploy-документах и скриптах использовать домены, а не IP.
 - По возможности все справки, комментарии и примечания в конфигах/документах писать на русском языке.
-- Для операций `git push` при необходимости использовать токен из переменной окружения `$GITEA_TOKEN`.
 - Любые изменения и любой деплой на production (`shineup.me` и `server2.shineup.me`) выполнять только после отдельного явного подтверждения пользователя.
 - Перед production deploy обязательно проверить/обновить бэкап в `deploy/backup/archive/`.
 - Если пользователь пишет просто `задеплой` без уточнения production/test, уточнить целевой контур; не выбирать production автоматически.

COMMIT_AND_VERSION_RULES.md

@@ -0,0 +1,47 @@
+# Правила коммитов, merge и версионирования
+
+Этот файл является единым источником правил для:
+- коммитов;
+- merge в `main`;
+- изменения версий в `VERSION.properties`;
+- `git push` из этого репозитория.
+
+## Язык
+
+- Пояснения к коммитам, PR и merge-запросам писать на русском языке.
+
+## Где хранится версия
+
+- Единый файл версий проекта: `VERSION.properties` в корне репозитория.
+- Основные поля:
+- `client.version` — версия клиентского UI.
+- `server.version` — версия серверной части.
+
+## Базовое правило для обычных коммитов
+
+- Перед каждым новым коммитом обязательно обновлять версии в `VERSION.properties`.
+- Если менялся только UI, увеличивать только `client.version`.
+- Если менялся только сервер, увеличивать только `server.version`.
+- Если менялись и UI, и сервер, увеличивать обе версии.
+- Для обычных коммитов вне `main` использовать стандартный patch-инкремент: `+1` к последнему числовому сегменту.
+- Пример: `1.2.346` → `1.2.347`.
+
+## Правило для `main`
+
+- Ветка `main` предназначена только для стабильных версий.
+- По умолчанию в `main` нужно не коммитить напрямую, а мержить готовые изменения из рабочей ветки.
+- Если пользователь просит сделать прямой коммит в `main`, нужно отдельно и явно предупредить, что это обход обычного стабильного процесса, и обязательно переспросить подтверждение.
+
+## Версионирование при merge или прямом коммите в `main`
+
+- Для попадания изменений в `main` действует отдельная схема инкремента.
+- Нужно увеличивать вторую цифру версии и обнулять третью.
+- Пример: `1.2.346` → `1.3.0`.
+- Если в наборе изменений менялся только UI, обновлять только `client.version`.
+- Если в наборе изменений менялся только сервер, обновлять только `server.version`.
+- Если соответствующая часть не менялась, её версию не трогать.
+
+## Правила для git commit и git push
+
+- Обычные коммиты делать стандартным `git commit`; токен для локального коммита не нужен и не используется.
+- Для операций `git push` при необходимости использовать токен из переменной окружения `$GITEA_TOKEN`.

SHiNE-server/AGENTS.md

@@ -9,7 +9,7 @@ SHiNE-server — серверная часть мессенджера SHiNE: Web
 
 - `shine-server-net-server/` — точка входа, запуск HTTP/WS сервера
 - `shine-server-net-protocol/` — обработчики операций (RPC и события WS)
-- `shine-server-db/` — DAO, SQL-схема, SQLite
+- `shine-server-db/` — DAO, SQL-схема, PostgreSQL runtime
 - `shine-server-blockchain/` — логика хранения и проверки блоков блокчейна
 - `shine-server-crypto/` — криптографические утилиты
 - `shine-server-config/` — конфигурация сервера
@@ -23,7 +23,7 @@ SHiNE-server — серверная часть мессенджера SHiNE: Web
 
 - **адрес сервера** (URL WebSocket/HTTPS, например `https://shineup.me/ws`);
 - **список серверов синхронизации** (`sync_servers`) — логины SHiNE-аккаунтов серверов-партнёров,
-  с которыми синхронизируются блоки и DM;
+  с которыми синхронизируются пользовательские блокчейны;
 - **корневой ключ** сервера (`root_key`).
 
 Клиенты читают PDA напрямую из Solana, чтобы узнать адрес сервера и при необходимости подключиться.
@@ -49,7 +49,9 @@ shine-UI/server-ui.html
 
 ## Синхронизация с партнёрскими серверами
 
-Сервер должен синхронизировать блоки блокчейна и DM с серверами-партнёрами из `sync_servers`.
+Сервер должен синхронизировать блоки пользовательских блокчейнов с
+серверами-партнёрами из `sync_servers`. DM между партнёрами не реплицируются:
+они доставляются только на первый access-сервер получателя.
 Детали: `docs/Blockchain/sync-between-servers.md`
 
 ## Деплой

SHiNE-server/shine-server-blockchain/src/main/java/blockchain/BodyRecordParser.java

@@ -36,7 +36,12 @@ public final class BodyRecordParser {
             case TextBody.KEY -> {
                 if (st == (MsgSubType.TEXT_POST & 0xFFFF)
                         || st == (MsgSubType.TEXT_EDIT_POST & 0xFFFF)
-                        || st == (MsgSubType.TEXT_REPOST & 0xFFFF)) {
+                        || st == (MsgSubType.TEXT_EXERCISE & 0xFFFF)
+                        || st == (MsgSubType.TEXT_SERVICE & 0xFFFF)
+                        || st == (MsgSubType.TEXT_COURSE & 0xFFFF)
+                        || st == (MsgSubType.TEXT_ENTRYPOINT & 0xFFFF)
+                        || st == (MsgSubType.TEXT_REPOST & 0xFFFF)
+                        || st == (MsgSubType.TEXT_CHANNEL_META & 0xFFFF)) {
                     yield new TextLineBody(subType, version, bodyBytes);
                 }
 
@@ -45,12 +50,17 @@ public final class BodyRecordParser {
                     yield new TextReplyBody(subType, version, bodyBytes);
                 }
 
+                if (st == (MsgSubType.TEXT_RATING & 0xFFFF)) {
+                    yield new TextRatingBody(subType, version, bodyBytes);
+                }
+
                 throw new IllegalArgumentException("Unknown TEXT subType for type=1 ver=1: subType=" + st);
             }
 
             case ReactionBody.KEY -> new ReactionBody(subType, version, bodyBytes);
             case ConnectionBody.KEY -> new ConnectionBody(subType, version, bodyBytes);
             case UserParamBody.KEY -> new UserParamBody(subType, version, bodyBytes);
+            case StatusActionBody.KEY -> new StatusActionBody(subType, version, bodyBytes);
 
             default -> throw new IllegalArgumentException(String.format(
                     "Unknown body type/version from header: type=%d ver=%d subType=%d",

SHiNE-server/shine-server-blockchain/src/main/java/blockchain/MsgSubType.java

@@ -64,11 +64,29 @@ public final class MsgSubType {
      */
     public static final short TEXT_EDIT_REPLY = 21;
 
+    /** RATING — target-based отзыв на конкретный блок. */
+    public static final short TEXT_RATING = 30;
+
     /**
-     * REPOST — репост сообщения в линии канала.
+     * REPOST — отложенная будущая заготовка репоста сообщения в линии канала.
      * Имеет hasLine + target (toBlockchainName + toBlockGlobalNumber + toBlockHash32) + текст комментария.
      */
-    public static final short TEXT_REPOST = 30;
+    public static final short TEXT_REPOST = 50;
+
+    /**
+     * CHANNEL_META — скрытый технический снимок профиля канала.
+     * Имеет hasLine, использует body как POST: line-поля + UTF-8 текст.
+     */
+    public static final short TEXT_CHANNEL_META = 90;
+
+    /** ENTRYPOINT — входная страница канала (line-based). */
+    public static final short TEXT_ENTRYPOINT = 100;
+    /** EXERCISE — упражнение/комплекс (line-based). */
+    public static final short TEXT_EXERCISE = 110;
+    /** SERVICE — услуга/процедура (line-based). */
+    public static final short TEXT_SERVICE = 120;
+    /** COURSE — курс (line-based). */
+    public static final short TEXT_COURSE = 130;
 
     /* ===================== REACTION (msg_type=2) ===================== */
 
@@ -80,25 +98,27 @@ public final class MsgSubType {
     /* ===================== CONNECTION (msg_type=3) ===================== */
 
     /** Добавить в близкие друзья (close friend). */
-    public static final short CONNECTION_FRIEND = 10;
+    public static final short CONNECTION_CLOSE_FRIEND = 10;
     /** Удалить из близких друзей (close friend). */
-    public static final short CONNECTION_UNFRIEND = 11;
+    public static final short CONNECTION_UNCLOSE_FRIEND = 11;
 
-    /** Alias: добавить в close friend (то же значение, что CONNECTION_FRIEND). */
+    /** Добавить в друзья. */
-    public static final short CONNECTION_CLOSE_FRIEND = CONNECTION_FRIEND;
+    public static final short CONNECTION_FRIEND = 14;
-    /** Alias: удалить из close friend (то же значение, что CONNECTION_UNFRIEND). */
+    /** Удалить из друзей. */
-    public static final short CONNECTION_UNCLOSE_FRIEND = CONNECTION_UNFRIEND;
+    public static final short CONNECTION_UNFRIEND = 15;
 
     /** Добавить в контакты. */
     public static final short CONNECTION_CONTACT = 20;
     /** Удалить из контактов. */
     public static final short CONNECTION_UNCONTACT = 21;
 
+    // FOLLOW на публичный канал используется. Старый FOLLOW пользователя (target header/block 0) считается legacy. DO NOT REMOVE.
     /** Подписаться (follow). */
     public static final short CONNECTION_FOLLOW = 30;
     /** Отписаться (unfollow). */
     public static final short CONNECTION_UNFOLLOW = 31;
 
+    // Родственные связи пока не используются в UI. Сохраняем коды. DO NOT REMOVE.
     /** Добавить связь "жена/муж". */
     public static final short CONNECTION_SPOUSE = 40;
     /** Удалить связь "жена/муж". */
@@ -119,9 +139,8 @@ public final class MsgSubType {
     /** Удалить связь "брат/сестра". */
     public static final short CONNECTION_UNSIBLING = 55;
 
-    /** Просто знаю этого человека. */
+    // Legacy. Допускаем старые блоки 60/61, но новый UI их не создаёт и не использует. DO NOT REMOVE.
     public static final short CONNECTION_KNOWN_PERSON = 60;
-    /** Не знаю этого человека. */
     public static final short CONNECTION_UNKNOWN_PERSON = 61;
 
     /** Точно уверен, что сияющий. */
@@ -129,13 +148,31 @@ public final class MsgSubType {
     /** Не подтверждаю, что сияющий. */
     public static final short CONNECTION_SHINE_UNCONFIRMED = 71;
 
+    // Пока не используется в UI. Сохраняем для совместимости протокола/блокчейна. DO NOT REMOVE.
     /** Мало знаком, но видел сияющим. */
     public static final short CONNECTION_SHINE_SEEN = 74;
     /** Не отмечаю, что видел сияющим. */
     public static final short CONNECTION_SHINE_UNSEEN = 75;
 
+    /** Подтверждаю, что это действительно официальный аккаунт этого человека. */
+    public static final short CONNECTION_OFFICIAL_ACCOUNT_CONFIRMED = 80;
+    /** Снимаю подтверждение официального аккаунта этого человека. */
+    public static final short CONNECTION_OFFICIAL_ACCOUNT_UNCONFIRMED = 81;
+
     /* ===================== USER_PARAM (msg_type=4) ===================== */
 
     /** Параметр профиля key/value (обе строки). */
     public static final short USER_PARAM_TEXT_TEXT = 1;
+
+    /* ===================== STATUS_ACTION (msg_type=5) ===================== */
+
+    public static final short STATUS_DONE_ONCE = 10;
+    public static final short STATUS_LEARNED = 20;
+    public static final short STATUS_SERVICE_PASSED = 30;
+    public static final short STATUS_CONFIRMED = 100;
+    public static final short STATUS_INTERESTED = 110;
+    public static final short STATUS_STARTED = 120;
+    public static final short STATUS_IN_STUDY = 130;
+    public static final short STATUS_ABANDONED = 140;
+    public static final short STATUS_COMPLETED = 150;
 }

SHiNE-server/shine-server-blockchain/src/main/java/blockchain/body/ConnectionBody.java

@@ -20,9 +20,11 @@ import java.util.Objects;
  *   PARENT=50, UNPARENT=51
  *   CHILD=52, UNCHILD=53
  *   SIBLING=54, UNSIBLING=55
- *   KNOWN_PERSON=60, UNKNOWN_PERSON=61
+ *   FRIEND=14, UNFRIEND=15
+ *   KNOWN_PERSON=60, UNKNOWN_PERSON=61 (legacy; accepted but not used by current UI)
  *   SHINE_CONFIRMED=70, SHINE_UNCONFIRMED=71
- *   SHINE_SEEN=74, SHINE_UNSEEN=75
+ *   SHINE_SEEN=74, SHINE_UNSEEN=75 (currently not used by UI)
+ *   OFFICIAL_ACCOUNT_CONFIRMED=80, OFFICIAL_ACCOUNT_UNCONFIRMED=81
  *
  * bodyBytes (BigEndian), новый формат (toLogin НЕ ХРАНИМ):
  *   [4]  lineCode
@@ -66,7 +68,7 @@ import java.util.Objects;
  *                     toBlockHash32=hash32(CREATE_CHANNEL)
  *
  *  3) ЗАПРЕТЫ ВАЛИДАЦИИ (желательно на сервере/в БД):
- *     - CONNECTION_FRIEND/CONTACT не могут ссылаться на не-HEADER (toBlockNumber != 0 запрещено).
+ *     - CONNECTION_CLOSE_FRIEND/CONTACT не могут ссылаться на не-HEADER (toBlockNumber != 0 запрещено).
  *     - FOLLOW на канал "X" не может ссылаться на произвольный пост внутри канала:
  *       разрешено ТОЛЬКО на ROOT (HEADER или CREATE_CHANNEL).
  *
@@ -183,7 +185,9 @@ public final class ConnectionBody implements BodyRecord, BodyHasTarget, BodyHasL
 
     private static boolean isValidSubType(short st) {
         int v = st & 0xFFFF;
-        return v == (MsgSubType.CONNECTION_FRIEND & 0xFFFF)
+        return v == (MsgSubType.CONNECTION_CLOSE_FRIEND & 0xFFFF)
+                || v == (MsgSubType.CONNECTION_UNCLOSE_FRIEND & 0xFFFF)
+                || v == (MsgSubType.CONNECTION_FRIEND & 0xFFFF)
                 || v == (MsgSubType.CONNECTION_UNFRIEND & 0xFFFF)
                 || v == (MsgSubType.CONNECTION_CONTACT & 0xFFFF)
                 || v == (MsgSubType.CONNECTION_UNCONTACT & 0xFFFF)
@@ -202,7 +206,9 @@ public final class ConnectionBody implements BodyRecord, BodyHasTarget, BodyHasL
                 || v == (MsgSubType.CONNECTION_SHINE_CONFIRMED & 0xFFFF)
                 || v == (MsgSubType.CONNECTION_SHINE_UNCONFIRMED & 0xFFFF)
                 || v == (MsgSubType.CONNECTION_SHINE_SEEN & 0xFFFF)
-                || v == (MsgSubType.CONNECTION_SHINE_UNSEEN & 0xFFFF);
+                || v == (MsgSubType.CONNECTION_SHINE_UNSEEN & 0xFFFF)
+                || v == (MsgSubType.CONNECTION_OFFICIAL_ACCOUNT_CONFIRMED & 0xFFFF)
+                || v == (MsgSubType.CONNECTION_OFFICIAL_ACCOUNT_UNCONFIRMED & 0xFFFF);
     }
 
     @Override

SHiNE-server/shine-server-blockchain/src/main/java/blockchain/body/CreateChannelBody.java

@@ -19,7 +19,7 @@ import java.util.Objects;
  *   [1]  channelNameLen
  *   [N]  channelName UTF-8
  *   [2]  channelDescriptionLen
- *   [M]  channelDescription UTF-8 (0..200 bytes)
+ *   [M]  channelDescription UTF-8 (0..2048 bytes)
  *   [2]  channelTypeCode (uint16)
  *   [2]  channelTypeVersion (uint16)
  */
@@ -38,7 +38,7 @@ public final class CreateChannelBody implements BodyRecord, BodyHasLine {
 
     private static final byte[] ZERO32 = new byte[32];
     private static final int MAX_NAME_LENGTH = 32;
-    private static final int MAX_DESCRIPTION_UTF8_LEN = 200;
+    public static final int MAX_DESCRIPTION_UTF8_LEN = 2048;
 
     public final short subType;
     public final short version;
@@ -88,7 +88,7 @@ public final class CreateChannelBody implements BodyRecord, BodyHasLine {
 
         int descriptionLen = Short.toUnsignedInt(bb.getShort());
         if (descriptionLen > MAX_DESCRIPTION_UTF8_LEN) {
-            throw new IllegalArgumentException("channelDescription utf8 len must be <=200");
+            throw new IllegalArgumentException("channelDescription utf8 len must be <=2048");
         }
         if (bb.remaining() != descriptionLen + 4) {
             throw new IllegalArgumentException("CreateChannelBody tail mismatch: remaining=" + bb.remaining() + " descriptionLen=" + descriptionLen);
@@ -145,7 +145,7 @@ public final class CreateChannelBody implements BodyRecord, BodyHasLine {
         String normalizedDescription = normalizeDescription(channelDescription);
         byte[] descUtf8 = normalizedDescription.getBytes(StandardCharsets.UTF_8);
         if (descUtf8.length > MAX_DESCRIPTION_UTF8_LEN) {
-            throw new IllegalArgumentException("channelDescription utf8 len must be <=200");
+            throw new IllegalArgumentException("channelDescription utf8 len must be <=2048");
         }
 
         int typeCode = Short.toUnsignedInt(channelTypeCode);
@@ -166,7 +166,7 @@ public final class CreateChannelBody implements BodyRecord, BodyHasLine {
 
     private static String normalizeDescription(String value) {
         if (value == null) return "";
-        return value.trim().replaceAll("\\s+", " ");
+        return value.trim().replace("\r\n", "\n").replace('\r', '\n');
     }
 
     @Override
@@ -177,7 +177,7 @@ public final class CreateChannelBody implements BodyRecord, BodyHasLine {
         }
         byte[] descriptionUtf8 = normalizeDescription(channelDescription).getBytes(StandardCharsets.UTF_8);
         if (descriptionUtf8.length > MAX_DESCRIPTION_UTF8_LEN) {
-            throw new IllegalArgumentException("channelDescription utf8 len must be <=200");
+            throw new IllegalArgumentException("channelDescription utf8 len must be <=2048");
         }
 
         int cap = 4 + (4 + 32 + 4) + 1 + nameUtf8.length + 2 + descriptionUtf8.length + 4;
@@ -204,4 +204,3 @@ public final class CreateChannelBody implements BodyRecord, BodyHasLine {
     @Override
     public int lineSeq() { return thisLineNumber; }
 }
-

SHiNE-server/shine-server-blockchain/src/main/java/blockchain/body/StatusActionBody.java

@@ -0,0 +1,166 @@
+package blockchain.body;
+
+import blockchain.MsgSubType;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.charset.CharacterCodingException;
+import java.nio.charset.CodingErrorAction;
+import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
+import java.util.Objects;
+
+/**
+ * StatusActionBody — type=5, ver=1.
+ *
+ * Все STATUS_ACTION имеют target на конкретный блок и опциональный текст-пояснение.
+ *
+ * Формат bodyBytes (BigEndian):
+ *   [1] toBlockchainNameLen (uint8)
+ *   [N] toBlockchainName UTF-8
+ *   [4] toBlockGlobalNumber
+ *   [32] toBlockHash32
+ *   [2] textLenBytes (uint16)
+ *   [M] text UTF-8
+ */
+public final class StatusActionBody implements BodyRecord, BodyHasTarget {
+
+    public static final short TYPE = 5;
+    public static final short VER = 1;
+    public static final int KEY = ((TYPE & 0xFFFF) << 16) | (VER & 0xFFFF);
+
+    public final short subType;
+    public final short version;
+    public final String toBlockchainName;
+    public final int toBlockGlobalNumber;
+    public final byte[] toBlockHash32;
+    public final String message;
+
+    public StatusActionBody(short subType, short version, byte[] bodyBytes) {
+        Objects.requireNonNull(bodyBytes, "bodyBytes == null");
+        this.subType = subType;
+        this.version = version;
+
+        if ((version & 0xFFFF) != (VER & 0xFFFF)) {
+            throw new IllegalArgumentException("StatusActionBody version must be 1, got=" + (version & 0xFFFF));
+        }
+        if (!isSupportedSubType(subType)) {
+            throw new IllegalArgumentException("Unsupported STATUS_ACTION subType: " + (subType & 0xFFFF));
+        }
+
+        ByteBuffer bb = ByteBuffer.wrap(bodyBytes).order(ByteOrder.BIG_ENDIAN);
+        ensureMin(bb, 1 + 1 + 4 + 32 + 2, "STATUS_ACTION too short");
+
+        int nameLen = Byte.toUnsignedInt(bb.get());
+        if (nameLen <= 0) throw new IllegalArgumentException("STATUS_ACTION toBlockchainNameLen is 0");
+        ensureMin(bb, nameLen + 4 + 32 + 2, "STATUS_ACTION payload too short");
+
+        byte[] nameBytes = new byte[nameLen];
+        bb.get(nameBytes);
+        this.toBlockchainName = new String(nameBytes, StandardCharsets.UTF_8);
+        this.toBlockGlobalNumber = bb.getInt();
+        this.toBlockHash32 = new byte[32];
+        bb.get(this.toBlockHash32);
+        this.message = readStrictUtf8Len16AllowEmpty(bb, "StatusActionBody text");
+
+        ensureNoTail(bb, "StatusActionBody");
+    }
+
+    public StatusActionBody(short subType, String toBlockchainName, int toBlockGlobalNumber, byte[] toBlockHash32, String message) {
+        Objects.requireNonNull(toBlockchainName, "toBlockchainName == null");
+        Objects.requireNonNull(toBlockHash32, "toBlockHash32 == null");
+        Objects.requireNonNull(message, "message == null");
+        if (!isSupportedSubType(subType)) throw new IllegalArgumentException("Unsupported STATUS_ACTION subType");
+        if (toBlockchainName.isBlank()) throw new IllegalArgumentException("toBlockchainName is blank");
+        if (toBlockGlobalNumber < 0) throw new IllegalArgumentException("toBlockGlobalNumber < 0");
+        if (toBlockHash32.length != 32) throw new IllegalArgumentException("toBlockHash32 != 32");
+
+        this.subType = subType;
+        this.version = VER;
+        this.toBlockchainName = toBlockchainName;
+        this.toBlockGlobalNumber = toBlockGlobalNumber;
+        this.toBlockHash32 = Arrays.copyOf(toBlockHash32, 32);
+        this.message = message;
+    }
+
+    @Override
+    public StatusActionBody check() {
+        if (!isSupportedSubType(subType)) {
+            throw new IllegalArgumentException("Bad STATUS_ACTION subType: " + (subType & 0xFFFF));
+        }
+        if (toBlockchainName == null || toBlockchainName.isBlank()) {
+            throw new IllegalArgumentException("STATUS_ACTION toBlockchainName is blank");
+        }
+        if (toBlockGlobalNumber < 0) throw new IllegalArgumentException("toBlockGlobalNumber < 0");
+        if (toBlockHash32 == null || toBlockHash32.length != 32) {
+            throw new IllegalArgumentException("toBlockHash32 invalid");
+        }
+        if (message == null) throw new IllegalArgumentException("message is null");
+        return this;
+    }
+
+    @Override
+    public byte[] toBytes() {
+        byte[] msgUtf8 = message.getBytes(StandardCharsets.UTF_8);
+        if (msgUtf8.length > 65535) throw new IllegalArgumentException("Text too long (>65535 bytes)");
+
+        byte[] nameUtf8 = toBlockchainName.getBytes(StandardCharsets.UTF_8);
+        if (nameUtf8.length == 0 || nameUtf8.length > 255) {
+            throw new IllegalArgumentException("STATUS_ACTION toBlockchainName utf8 len must be 1..255");
+        }
+
+        ByteBuffer bb = ByteBuffer.allocate(1 + nameUtf8.length + 4 + 32 + 2 + msgUtf8.length)
+                .order(ByteOrder.BIG_ENDIAN);
+        bb.put((byte) nameUtf8.length);
+        bb.put(nameUtf8);
+        bb.putInt(toBlockGlobalNumber);
+        bb.put(toBlockHash32);
+        bb.putShort((short) msgUtf8.length);
+        bb.put(msgUtf8);
+        return bb.array();
+    }
+
+    @Override public String toBchName() { return toBlockchainName; }
+    @Override public Integer toBlockGlobalNumber() { return toBlockGlobalNumber; }
+    @Override public byte[] toBlockHashBytes() { return toBlockHash32; }
+
+    private static boolean isSupportedSubType(short subType) {
+        int st = subType & 0xFFFF;
+        return st == (MsgSubType.STATUS_DONE_ONCE & 0xFFFF)
+                || st == (MsgSubType.STATUS_LEARNED & 0xFFFF)
+                || st == (MsgSubType.STATUS_SERVICE_PASSED & 0xFFFF)
+                || st == (MsgSubType.STATUS_CONFIRMED & 0xFFFF)
+                || st == (MsgSubType.STATUS_INTERESTED & 0xFFFF)
+                || st == (MsgSubType.STATUS_STARTED & 0xFFFF)
+                || st == (MsgSubType.STATUS_IN_STUDY & 0xFFFF)
+                || st == (MsgSubType.STATUS_ABANDONED & 0xFFFF)
+                || st == (MsgSubType.STATUS_COMPLETED & 0xFFFF);
+    }
+
+    private static String readStrictUtf8Len16AllowEmpty(ByteBuffer bb, String fieldName) {
+        int len = Short.toUnsignedInt(bb.getShort());
+        if (len == 0) return "";
+        if (bb.remaining() < len) throw new IllegalArgumentException(fieldName + " payload too short (len=" + len + ")");
+
+        byte[] bytes = new byte[len];
+        bb.get(bytes);
+
+        var decoder = StandardCharsets.UTF_8.newDecoder()
+                .onMalformedInput(CodingErrorAction.REPORT)
+                .onUnmappableCharacter(CodingErrorAction.REPORT);
+
+        try {
+            return decoder.decode(ByteBuffer.wrap(bytes)).toString();
+        } catch (CharacterCodingException e) {
+            throw new IllegalArgumentException(fieldName + " is not valid UTF-8", e);
+        }
+    }
+
+    private static void ensureMin(ByteBuffer bb, int need, String msg) {
+        if (bb.remaining() < need) throw new IllegalArgumentException(msg + " (need=" + need + ", remaining=" + bb.remaining() + ")");
+    }
+
+    private static void ensureNoTail(ByteBuffer bb, String ctx) {
+        if (bb.remaining() != 0) throw new IllegalArgumentException("Unexpected tail bytes for " + ctx + ", remaining=" + bb.remaining());
+    }
+}

SHiNE-server/shine-server-blockchain/src/main/java/blockchain/body/TextLineBody.java

@@ -16,11 +16,16 @@ import java.util.Objects;
  * subType:
  *  - POST      (10)
  *  - EDIT_POST (11)
- *  - REPOST    (30)
+ *  - REPOST    (50)
+ *  - CHANNEL_META (90)
+ *  - ENTRYPOINT (100)
+ *  - EXERCISE (110)
+ *  - SERVICE (120)
+ *  - COURSE (130)
  *
  * Формат bodyBytes (BigEndian):
  *
- * POST:
+ * POST / CHANNEL_META / ENTRYPOINT / EXERCISE / SERVICE / COURSE:
  *   [4]  lineCode
  *   [4]  prevLineNumber
  *   [32] prevLineHash32
@@ -89,8 +94,13 @@ public final class TextLineBody implements BodyRecord, BodyHasLine, BodyHasTarge
         int st = this.subType & 0xFFFF;
         if (st != (MsgSubType.TEXT_POST & 0xFFFF)
                 && st != (MsgSubType.TEXT_EDIT_POST & 0xFFFF)
-                && st != (MsgSubType.TEXT_REPOST & 0xFFFF)) {
+                && st != (MsgSubType.TEXT_REPOST & 0xFFFF)
-            throw new IllegalArgumentException("TextLineBody supports only POST/EDIT_POST/REPOST, got subType=" + st);
+                && st != (MsgSubType.TEXT_CHANNEL_META & 0xFFFF)
+                && st != (MsgSubType.TEXT_ENTRYPOINT & 0xFFFF)
+                && st != (MsgSubType.TEXT_EXERCISE & 0xFFFF)
+                && st != (MsgSubType.TEXT_SERVICE & 0xFFFF)
+                && st != (MsgSubType.TEXT_COURSE & 0xFFFF)) {
+            throw new IllegalArgumentException("TextLineBody supports only POST/EDIT_POST/REPOST/CHANNEL_META, got subType=" + st);
         }
 
         ByteBuffer bb = ByteBuffer.wrap(bodyBytes).order(ByteOrder.BIG_ENDIAN);
@@ -133,7 +143,8 @@ public final class TextLineBody implements BodyRecord, BodyHasLine, BodyHasTarge
             this.toBlockHash32 = null;
         }
 
-        this.message = readStrictUtf8Len16(bb, "TextLineBody text", st == (MsgSubType.TEXT_EDIT_POST & 0xFFFF));
+        this.message = readStrictUtf8Len16(bb, "TextLineBody text",
+                st == (MsgSubType.TEXT_EDIT_POST & 0xFFFF) || st == (MsgSubType.TEXT_CHANNEL_META & 0xFFFF));
 
         ensureNoTail(bb, "TextLineBody");
     }
@@ -155,12 +166,17 @@ public final class TextLineBody implements BodyRecord, BodyHasLine, BodyHasTarge
         int st = subType & 0xFFFF;
         if (st != (MsgSubType.TEXT_POST & 0xFFFF)
                 && st != (MsgSubType.TEXT_EDIT_POST & 0xFFFF)
-                && st != (MsgSubType.TEXT_REPOST & 0xFFFF)) {
+                && st != (MsgSubType.TEXT_REPOST & 0xFFFF)
-            throw new IllegalArgumentException("TextLineBody supports only POST/EDIT_POST/REPOST");
+                && st != (MsgSubType.TEXT_CHANNEL_META & 0xFFFF)
+                && st != (MsgSubType.TEXT_ENTRYPOINT & 0xFFFF)
+                && st != (MsgSubType.TEXT_EXERCISE & 0xFFFF)
+                && st != (MsgSubType.TEXT_SERVICE & 0xFFFF)
+                && st != (MsgSubType.TEXT_COURSE & 0xFFFF)) {
+            throw new IllegalArgumentException("TextLineBody supports only POST/EDIT_POST/REPOST/CHANNEL_META");
         }
 
         if (lineCode < 0) throw new IllegalArgumentException("lineCode < 0");
-        if (st == (MsgSubType.TEXT_POST & 0xFFFF) && message.isBlank()) {
+        if (requiresNonBlankMessage(st) && message.isBlank()) {
             throw new IllegalArgumentException("message is blank");
         }
 
@@ -206,7 +222,12 @@ public final class TextLineBody implements BodyRecord, BodyHasLine, BodyHasTarge
         int st = subType & 0xFFFF;
         if (st != (MsgSubType.TEXT_POST & 0xFFFF)
                 && st != (MsgSubType.TEXT_EDIT_POST & 0xFFFF)
-                && st != (MsgSubType.TEXT_REPOST & 0xFFFF))
+                && st != (MsgSubType.TEXT_REPOST & 0xFFFF)
+                && st != (MsgSubType.TEXT_CHANNEL_META & 0xFFFF)
+                && st != (MsgSubType.TEXT_ENTRYPOINT & 0xFFFF)
+                && st != (MsgSubType.TEXT_EXERCISE & 0xFFFF)
+                && st != (MsgSubType.TEXT_SERVICE & 0xFFFF)
+                && st != (MsgSubType.TEXT_COURSE & 0xFFFF))
             throw new IllegalArgumentException("Bad TextLineBody subType: " + st);
 
         if (lineCode < 0) throw new IllegalArgumentException("lineCode < 0");
@@ -231,10 +252,15 @@ public final class TextLineBody implements BodyRecord, BodyHasLine, BodyHasTarge
             if (toBlockHash32 == null || toBlockHash32.length != 32)
                 throw new IllegalArgumentException("REPOST toBlockHash32 invalid");
         } else {
-            if (message == null || message.isBlank())
+            if (st == (MsgSubType.TEXT_CHANNEL_META & 0xFFFF)) {
+                if (message == null) throw new IllegalArgumentException("CHANNEL_META message is null");
+            } else if (requiresNonBlankMessage(st) && (message == null || message.isBlank())) {
                 throw new IllegalArgumentException("Text message is blank");
+            } else if (message == null) {
+                throw new IllegalArgumentException("Text message is null");
+            }
             if (toBlockchainName != null || toBlockGlobalNumber != null || toBlockHash32 != null)
-                throw new IllegalArgumentException("POST must not contain target fields");
+                throw new IllegalArgumentException("POST/CHANNEL_META must not contain target fields");
         }
 
         return this;
@@ -246,12 +272,17 @@ public final class TextLineBody implements BodyRecord, BodyHasLine, BodyHasTarge
         if (msgUtf8.length > 65535) throw new IllegalArgumentException("Text too long (>65535 bytes)");
 
         int st = subType & 0xFFFF;
-        if (st == (MsgSubType.TEXT_POST & 0xFFFF) && msgUtf8.length == 0) {
+        if (requiresNonBlankMessage(st) && msgUtf8.length == 0) {
             throw new IllegalArgumentException("Text payload is empty");
         }
 
         int cap;
-        if (st == (MsgSubType.TEXT_POST & 0xFFFF)) {
+        if (st == (MsgSubType.TEXT_POST & 0xFFFF)
+                || st == (MsgSubType.TEXT_CHANNEL_META & 0xFFFF)
+                || st == (MsgSubType.TEXT_ENTRYPOINT & 0xFFFF)
+                || st == (MsgSubType.TEXT_EXERCISE & 0xFFFF)
+                || st == (MsgSubType.TEXT_SERVICE & 0xFFFF)
+                || st == (MsgSubType.TEXT_COURSE & 0xFFFF)) {
             cap = (4 + 4 + 32 + 4) + 2 + msgUtf8.length;
         } else if (st == (MsgSubType.TEXT_EDIT_POST & 0xFFFF)) {
             // EDIT_POST
@@ -310,6 +341,15 @@ public final class TextLineBody implements BodyRecord, BodyHasLine, BodyHasTarge
         return (subType & 0xFFFF) == (MsgSubType.TEXT_EDIT_POST & 0xFFFF);
     }
 
+    private static boolean requiresNonBlankMessage(int st) {
+        return st == (MsgSubType.TEXT_POST & 0xFFFF)
+                || st == (MsgSubType.TEXT_REPOST & 0xFFFF)
+                || st == (MsgSubType.TEXT_ENTRYPOINT & 0xFFFF)
+                || st == (MsgSubType.TEXT_EXERCISE & 0xFFFF)
+                || st == (MsgSubType.TEXT_SERVICE & 0xFFFF)
+                || st == (MsgSubType.TEXT_COURSE & 0xFFFF);
+    }
+
     private static String readStrictUtf8Len16(ByteBuffer bb, String fieldName, boolean allowEmpty) {
         int len = Short.toUnsignedInt(bb.getShort());
         if (len == 0) {

SHiNE-server/shine-server-blockchain/src/main/java/blockchain/body/TextRatingBody.java

@@ -0,0 +1,157 @@
+package blockchain.body;
+
+import blockchain.MsgSubType;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.charset.CharacterCodingException;
+import java.nio.charset.CodingErrorAction;
+import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
+import java.util.Objects;
+
+/**
+ * TextRatingBody — type=1, ver=1.
+ *
+ * subType:
+ *  - RATING (30)
+ *
+ * Формат bodyBytes (BigEndian):
+ *   [1] toBlockchainNameLen (uint8)
+ *   [N] toBlockchainName UTF-8
+ *   [4] toBlockGlobalNumber
+ *   [32] toBlockHash32
+ *   [2] textLenBytes (uint16)
+ *   [M] text UTF-8
+ */
+public final class TextRatingBody implements BodyRecord, BodyHasTarget {
+
+    public static final short TYPE = 1;
+    public static final short VER = 1;
+    public static final int KEY = ((TYPE & 0xFFFF) << 16) | (VER & 0xFFFF);
+
+    public final short subType;
+    public final short version;
+    public final String toBlockchainName;
+    public final int toBlockGlobalNumber;
+    public final byte[] toBlockHash32;
+    public final String message;
+
+    public TextRatingBody(short subType, short version, byte[] bodyBytes) {
+        Objects.requireNonNull(bodyBytes, "bodyBytes == null");
+        this.subType = subType;
+        this.version = version;
+
+        if ((version & 0xFFFF) != (VER & 0xFFFF)) {
+            throw new IllegalArgumentException("TextRatingBody version must be 1, got=" + (version & 0xFFFF));
+        }
+        if ((subType & 0xFFFF) != (MsgSubType.TEXT_RATING & 0xFFFF)) {
+            throw new IllegalArgumentException("TextRatingBody supports only TEXT_RATING");
+        }
+
+        ByteBuffer bb = ByteBuffer.wrap(bodyBytes).order(ByteOrder.BIG_ENDIAN);
+        ensureMin(bb, 1 + 1 + 4 + 32 + 2, "RATING too short");
+
+        int nameLen = Byte.toUnsignedInt(bb.get());
+        if (nameLen <= 0) throw new IllegalArgumentException("RATING toBlockchainNameLen is 0");
+        ensureMin(bb, nameLen + 4 + 32 + 2, "RATING payload too short");
+
+        byte[] nameBytes = new byte[nameLen];
+        bb.get(nameBytes);
+        this.toBlockchainName = new String(nameBytes, StandardCharsets.UTF_8);
+        this.toBlockGlobalNumber = bb.getInt();
+        this.toBlockHash32 = new byte[32];
+        bb.get(this.toBlockHash32);
+        this.message = readStrictUtf8Len16(bb, "TextRatingBody text");
+
+        ensureNoTail(bb, "TextRatingBody");
+    }
+
+    public TextRatingBody(String toBlockchainName, int toBlockGlobalNumber, byte[] toBlockHash32, String message) {
+        Objects.requireNonNull(toBlockchainName, "toBlockchainName == null");
+        Objects.requireNonNull(toBlockHash32, "toBlockHash32 == null");
+        Objects.requireNonNull(message, "message == null");
+        if (toBlockchainName.isBlank()) throw new IllegalArgumentException("toBlockchainName is blank");
+        if (toBlockGlobalNumber < 0) throw new IllegalArgumentException("toBlockGlobalNumber < 0");
+        if (toBlockHash32.length != 32) throw new IllegalArgumentException("toBlockHash32 != 32");
+        if (message.isBlank()) throw new IllegalArgumentException("message is blank");
+
+        this.subType = MsgSubType.TEXT_RATING;
+        this.version = VER;
+        this.toBlockchainName = toBlockchainName;
+        this.toBlockGlobalNumber = toBlockGlobalNumber;
+        this.toBlockHash32 = Arrays.copyOf(toBlockHash32, 32);
+        this.message = message;
+    }
+
+    @Override
+    public TextRatingBody check() {
+        if ((subType & 0xFFFF) != (MsgSubType.TEXT_RATING & 0xFFFF)) {
+            throw new IllegalArgumentException("Bad TextRatingBody subType: " + (subType & 0xFFFF));
+        }
+        if (toBlockchainName == null || toBlockchainName.isBlank()) {
+            throw new IllegalArgumentException("RATING toBlockchainName is blank");
+        }
+        if (toBlockGlobalNumber < 0) throw new IllegalArgumentException("toBlockGlobalNumber < 0");
+        if (toBlockHash32 == null || toBlockHash32.length != 32) {
+            throw new IllegalArgumentException("toBlockHash32 invalid");
+        }
+        if (message == null || message.isBlank()) throw new IllegalArgumentException("message is blank");
+        return this;
+    }
+
+    @Override
+    public byte[] toBytes() {
+        byte[] msgUtf8 = message.getBytes(StandardCharsets.UTF_8);
+        if (msgUtf8.length == 0) throw new IllegalArgumentException("Text payload is empty");
+        if (msgUtf8.length > 65535) throw new IllegalArgumentException("Text too long (>65535 bytes)");
+
+        byte[] nameUtf8 = toBlockchainName.getBytes(StandardCharsets.UTF_8);
+        if (nameUtf8.length == 0 || nameUtf8.length > 255) {
+            throw new IllegalArgumentException("RATING toBlockchainName utf8 len must be 1..255");
+        }
+
+        ByteBuffer bb = ByteBuffer.allocate(1 + nameUtf8.length + 4 + 32 + 2 + msgUtf8.length)
+                .order(ByteOrder.BIG_ENDIAN);
+        bb.put((byte) nameUtf8.length);
+        bb.put(nameUtf8);
+        bb.putInt(toBlockGlobalNumber);
+        bb.put(toBlockHash32);
+        bb.putShort((short) msgUtf8.length);
+        bb.put(msgUtf8);
+        return bb.array();
+    }
+
+    @Override public String toBchName() { return toBlockchainName; }
+    @Override public Integer toBlockGlobalNumber() { return toBlockGlobalNumber; }
+    @Override public byte[] toBlockHashBytes() { return toBlockHash32; }
+
+    private static String readStrictUtf8Len16(ByteBuffer bb, String fieldName) {
+        int len = Short.toUnsignedInt(bb.getShort());
+        if (len == 0) throw new IllegalArgumentException(fieldName + " is empty");
+        if (bb.remaining() < len) throw new IllegalArgumentException(fieldName + " payload too short (len=" + len + ")");
+
+        byte[] bytes = new byte[len];
+        bb.get(bytes);
+
+        var decoder = StandardCharsets.UTF_8.newDecoder()
+                .onMalformedInput(CodingErrorAction.REPORT)
+                .onUnmappableCharacter(CodingErrorAction.REPORT);
+
+        try {
+            String s = decoder.decode(ByteBuffer.wrap(bytes)).toString();
+            if (s.isBlank()) throw new IllegalArgumentException(fieldName + " is blank");
+            return s;
+        } catch (CharacterCodingException e) {
+            throw new IllegalArgumentException(fieldName + " is not valid UTF-8", e);
+        }
+    }
+
+    private static void ensureMin(ByteBuffer bb, int need, String msg) {
+        if (bb.remaining() < need) throw new IllegalArgumentException(msg + " (need=" + need + ", remaining=" + bb.remaining() + ")");
+    }
+
+    private static void ensureNoTail(ByteBuffer bb, String ctx) {
+        if (bb.remaining() != 0) throw new IllegalArgumentException("Unexpected tail bytes for " + ctx + ", remaining=" + bb.remaining());
+    }
+}

SHiNE-server/shine-server-config/src/main/java/utils/config/AppConfig.java

@@ -59,6 +59,8 @@ public final class AppConfig {
     public String getParam(String name) {
         String fromSystem = System.getProperty(name);
         if (fromSystem != null) return fromSystem;
+        String fromEnv = System.getenv(toEnvName(name));
+        if (fromEnv != null && !fromEnv.isBlank()) return fromEnv.trim();
         return properties.getProperty(name);
     }
 
@@ -78,4 +80,11 @@ public final class AppConfig {
         String v = properties.getProperty(name);
         return v == null ? defaultValue : Boolean.parseBoolean(v);
     }
+
+    private static String toEnvName(String name) {
+        return name
+                .replace('.', '_')
+                .replace('-', '_')
+                .toUpperCase();
+    }
 }

SHiNE-server/shine-server-config/src/main/java/utils/config/ShineSignatureConstants.java

@@ -14,6 +14,9 @@ public final class ShineSignatureConstants {
     /** Подписываемые данные параметра пользователя: prefix + login + param + time_ms + value */
     public static final String USER_PARAMETER_PREFIX = "SHiNe/UserParameter:";
 
+    /** Подписываемые данные пользовательских настроек: prefix + login + type + key + time_ms + value_text + value_num */
+    public static final String USER_SETTINGS_PREFIX = "SHiNe/UserSettings:";
+
     /** TAG в HeaderBody (genesis). ASCII "SHiNe". */
     public static final String BLOCKCHAIN_HEADER_TAG = "SHiNe";
 
@@ -31,4 +34,4 @@ public final class ShineSignatureConstants {
 
     /** Длина публичного ключа Ed25519. */
     public static final int ED25519_PUBLIC_KEY32_LEN = 32;
-}
+}

SHiNE-server/shine-server-db/build.gradle

@@ -16,7 +16,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'org.xerial:sqlite-jdbc:3.47.0.0'  //  sqlite
+    implementation 'org.postgresql:postgresql:42.7.7'
 
     implementation "org.slf4j:slf4j-api:2.0.16"          // вызов логгера
 

SHiNE-server/shine-server-db/src/main/java/shine/db/DatabaseTriggersInstaller.java

@@ -1,569 +0,0 @@
-package shine.db;
-
-import java.sql.SQLException;
-import java.sql.ResultSet;
-import java.sql.Statement;
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * DatabaseTriggersInstaller — устанавливает триггеры, которые поддерживают бизнес-логику БД.
- *
- * Мы специально сделали триггеры максимально "совместимыми":
- *  - НЕТ динамических сообщений в RAISE(...): только фиксированные строки.
- *    (Некоторые SQLite-сборки / просмотрщики падают на "||" внутри RAISE.)
- *  - НЕТ UPSERT "ON CONFLICT DO UPDATE" — вместо него:
- *      INSERT OR IGNORE + UPDATE
- *    (Старые SQLite не знают UPSERT.)
- *
- * =============================================================================
- * ОПИСАНИЕ ТРИГГЕРОВ
- * =============================================================================
- *
- * [1] trg_blocks_line_integrity_bi  (BEFORE INSERT ON blocks)
- *     Контроль целостности "линий" (line_code / prev_line_number / prev_line_hash / this_line_number).
- *
- *     Зачем это нужно:
- *       - В каналах/ветках/действиях ты хочешь иметь "линейную" последовательность,
- *         где каждый следующий блок явно ссылается на предыдущий блок линии
- *         и подтверждает, что ссылка не подменена.
- *
- *     Когда срабатывает:
- *       - ТОЛЬКО если при вставке передано ХОТЯ БЫ ОДНО из line-полей.
- *       - Если line-поля не переданы — триггер вообще не работает (это важно).
- *
- *     Что проверяет:
- *       A) line-поля допускаются только для msg_type:
- *          0 (TECH), 1 (TEXT), 3 (CONNECTION), 4 (USER_PARAM)
- *       B) Если пришло хоть одно line-поле — обязаны прийти ВСЕ 4 (никаких "частичных")
- *       C) prev-блок линии существует в той же цепочке bch_name
- *       D) prev_hash совпадает с block_hash найденного prev-блока
- *       E) line_code корректный:
- *          - либо первый шаг после root: prev_line_number == line_code
- *          - либо prev уже принадлежит этой линии: p.line_code == NEW.line_code
- *       F) this_line_number:
- *          - первый шаг после root:
- *              TEXT: this_line_number = 0
- *              TECH/CONNECTION/USER_PARAM: this_line_number = 1
- *          - обычный шаг:
- *              TEXT: допускаем same или +1 (чтобы "edit" мог не двигать шаг)
- *              TECH/CONNECTION/USER_PARAM: строго prev.this + 1
- *
- *     Какие ошибки кидает:
- *       - LINE_ERR_UNSUPPORTED_TYPE_WITH_LINE
- *       - LINE_ERR_PARTIAL_FIELDS
- *       - LINE_ERR_NO_PREV
- *       - LINE_ERR_PREV_HASH_MISMATCH
- *       - LINE_ERR_LINE_CODE_MISMATCH
- *       - LINE_ERR_FIRST_STEP_BAD_THIS
- *       - LINE_ERR_THIS_LINE_BAD_STEP
- *
- * [2] trg_blocks_connection_state_ai  (AFTER INSERT ON blocks WHEN msg_type=3)
- *     Поддерживает таблицу connections_state как "текущее состояние" отношений:
- *       - FRIEND/CONTACT/FOLLOW  -> добавить/обновить состояние
- *       - UNFRIEND/UNCONTACT/UNFOLLOW -> удалить соответствующее "позитивное" состояние
- *
- * [3] trg_blocks_message_stats_like_ai (AFTER INSERT ON blocks WHEN msg_type=2 AND sub_type=LIKE)
- *     Поддерживает likes_count в message_stats для цели (to_*).
- *
- * [4] trg_blocks_message_stats_reply_ai (AFTER INSERT ON blocks WHEN msg_type=1 AND sub_type=REPLY)
- *     Поддерживает replies_count в message_stats.
- *
- * [5] trg_blocks_edit_apply_ai (AFTER INSERT ON blocks WHEN msg_type=1 AND sub_type=EDIT)
- *     Логика edit:
- *       - помечает исходный блок edited_by_block_number = NEW.block_number
- *       - увеличивает edits_count в message_stats
- */
-public final class DatabaseTriggersInstaller {
-
-    private DatabaseTriggersInstaller() {}
-
-    public static void createAllTriggers(Statement st) throws SQLException {
-        dropTriggersByPrefix(st, "trg_blocks_");
-
-        // На всякий случай убираем старые "криво названные" триггеры,
-        // если они когда-то попадали в БД.
-        st.executeUpdate("DROP TRIGGER IF EXISTS trg_block_lini_integriti_by;");
-        st.executeUpdate("DROP TRIGGER IF EXISTS trg_blocks_line_integrity_bi;");
-
-        st.executeUpdate("DROP TRIGGER IF EXISTS trg_blocks_connection_state_ai;");
-        st.executeUpdate("DROP TRIGGER IF EXISTS trg_blocks_message_stats_like_ai;");
-        st.executeUpdate("DROP TRIGGER IF EXISTS trg_blocks_message_stats_reply_ai;");
-        st.executeUpdate("DROP TRIGGER IF EXISTS trg_blocks_edit_apply_ai;");
-
-        createLineIntegrityTrigger(st);
-        createConnectionStateTrigger(st);
-        createMessageStatsLikeTrigger(st);
-        createMessageStatsReplyTrigger(st);
-        createEditApplyTrigger(st);
-    }
-
-    private static void dropTriggersByPrefix(Statement st, String prefix) throws SQLException {
-        List<String> triggerNames = new ArrayList<>();
-        String sql = "SELECT name FROM sqlite_master WHERE type='trigger' AND name LIKE '" + prefix + "%'";
-        try (ResultSet rs = st.executeQuery(sql)) {
-            while (rs.next()) {
-                String name = rs.getString("name");
-                if (name != null && !name.isBlank()) {
-                    triggerNames.add(name);
-                }
-            }
-        }
-
-        for (String name : triggerNames) {
-            String safeName = name.replace("\"", "\"\"");
-            st.executeUpdate("DROP TRIGGER IF EXISTS \"" + safeName + "\"");
-        }
-    }
-
-    private static void createLineIntegrityTrigger(Statement st) throws SQLException {
-        st.executeUpdate("""
-            CREATE TRIGGER IF NOT EXISTS trg_blocks_line_integrity_bi
-            BEFORE INSERT ON blocks
-            WHEN
-                NEW.line_code IS NOT NULL
-                OR NEW.prev_line_number IS NOT NULL
-                OR NEW.prev_line_hash IS NOT NULL
-                OR NEW.this_line_number IS NOT NULL
-            BEGIN
-                SELECT RAISE(ABORT, 'LINE_ERR_UNSUPPORTED_TYPE_WITH_LINE')
-                WHERE NOT (NEW.msg_type IN (0, 1, 3, 4));
-
-                SELECT RAISE(ABORT, 'LINE_ERR_PARTIAL_FIELDS')
-                WHERE NEW.line_code IS NULL
-                   OR NEW.prev_line_number IS NULL
-                   OR NEW.prev_line_hash IS NULL
-                   OR NEW.this_line_number IS NULL;
-
-                SELECT RAISE(ABORT, 'LINE_ERR_NO_PREV')
-                WHERE NOT EXISTS(
-                    SELECT 1
-                    FROM blocks p
-                    WHERE p.bch_name = NEW.bch_name
-                      AND p.block_number = NEW.prev_line_number
-                    LIMIT 1
-                );
-
-                SELECT RAISE(ABORT, 'LINE_ERR_PREV_HASH_MISMATCH')
-                WHERE NOT EXISTS(
-                    SELECT 1
-                    FROM blocks p
-                    WHERE p.bch_name = NEW.bch_name
-                      AND p.block_number = NEW.prev_line_number
-                      AND p.block_hash = NEW.prev_line_hash
-                    LIMIT 1
-                );
-
-                SELECT RAISE(ABORT, 'LINE_ERR_LINE_CODE_MISMATCH')
-                WHERE NEW.prev_line_number <> NEW.line_code
-                  AND NOT EXISTS(
-                    SELECT 1
-                    FROM blocks p
-                    WHERE p.bch_name = NEW.bch_name
-                      AND p.block_number = NEW.prev_line_number
-                      AND p.line_code = NEW.line_code
-                    LIMIT 1
-                  );
-
-                SELECT RAISE(ABORT, 'LINE_ERR_FIRST_STEP_BAD_THIS')
-                WHERE NEW.prev_line_number = NEW.line_code
-                  AND NEW.this_line_number <> (CASE WHEN NEW.msg_type = 1 THEN 0 ELSE 1 END);
-
-                SELECT RAISE(ABORT, 'LINE_ERR_THIS_LINE_BAD_STEP')
-                WHERE NEW.prev_line_number <> NEW.line_code
-                  AND NOT EXISTS(
-                    SELECT 1
-                    FROM blocks p
-                    WHERE p.bch_name = NEW.bch_name
-                      AND p.block_number = NEW.prev_line_number
-                      AND p.this_line_number IS NOT NULL
-                      AND (
-                            (NEW.msg_type = 1 AND
-                                (NEW.this_line_number = p.this_line_number OR NEW.this_line_number = p.this_line_number + 1)
-                            )
-                            OR
-                            (NEW.msg_type IN (0,3,4) AND NEW.this_line_number = p.this_line_number + 1)
-                          )
-                    LIMIT 1
-                  );
-            END;
-            """);
-    }
-
-    private static void createConnectionStateTrigger(Statement st) throws SQLException {
-        int FRIEND     = (int) DatabaseInitializer.CONNECTION_FRIEND;
-        int CONTACT    = (int) DatabaseInitializer.CONNECTION_CONTACT;
-        int FOLLOW     = (int) DatabaseInitializer.CONNECTION_FOLLOW;
-        int SPOUSE     = (int) DatabaseInitializer.CONNECTION_SPOUSE;
-        int PARENT     = (int) DatabaseInitializer.CONNECTION_PARENT;
-        int CHILD      = (int) DatabaseInitializer.CONNECTION_CHILD;
-        int SIBLING    = (int) DatabaseInitializer.CONNECTION_SIBLING;
-        int KNOWN      = (int) DatabaseInitializer.CONNECTION_KNOWN_PERSON;
-        int SHINE_CONF = (int) DatabaseInitializer.CONNECTION_SHINE_CONFIRMED;
-        int SHINE_SEEN = (int) DatabaseInitializer.CONNECTION_SHINE_SEEN;
-
-        int UNFRIEND   = (int) DatabaseInitializer.CONNECTION_UNFRIEND;
-        int UNCONTACT  = (int) DatabaseInitializer.CONNECTION_UNCONTACT;
-        int UNFOLLOW   = (int) DatabaseInitializer.CONNECTION_UNFOLLOW;
-        int UNSPOUSE   = (int) DatabaseInitializer.CONNECTION_UNSPOUSE;
-        int UNPARENT   = (int) DatabaseInitializer.CONNECTION_UNPARENT;
-        int UNCHILD    = (int) DatabaseInitializer.CONNECTION_UNCHILD;
-        int UNSIBLING  = (int) DatabaseInitializer.CONNECTION_UNSIBLING;
-        int UNKNOWN    = (int) DatabaseInitializer.CONNECTION_UNKNOWN_PERSON;
-        int SHINE_UNCONF = (int) DatabaseInitializer.CONNECTION_SHINE_UNCONFIRMED;
-        int SHINE_UNSEEN = (int) DatabaseInitializer.CONNECTION_SHINE_UNSEEN;
-
-        st.executeUpdate("""
-            CREATE TRIGGER IF NOT EXISTS trg_blocks_connection_state_ai
-            AFTER INSERT ON blocks
-            WHEN NEW.msg_type = 3
-            BEGIN
-                -- FRIEND/CONTACT/FOLLOW/SPOUSE/PARENT/CHILD/SIBLING/KNOWN_PERSON/SHINE_*:
-                -- 1) если записи нет — создаём
-                INSERT OR IGNORE INTO connections_state (
-                    login, rel_type, to_login, to_bch_name, to_block_number, to_block_hash
-                )
-                SELECT
-                    NEW.login,
-                    NEW.msg_sub_type,
-                    COALESCE(
-                        NEW.to_login,
-                        (
-                            SELECT su.login
-                            FROM solana_users su
-                            WHERE su.blockchain_name = NEW.to_bch_name COLLATE NOCASE
-                            LIMIT 1
-                        ),
-                        CASE
-                            WHEN NEW.to_bch_name IS NOT NULL
-                             AND length(NEW.to_bch_name) > 4
-                             AND substr(NEW.to_bch_name, length(NEW.to_bch_name) - 3, 1) = '-'
-                            THEN substr(NEW.to_bch_name, 1, length(NEW.to_bch_name) - 4)
-                            ELSE NULL
-                        END
-                    ),
-                    NEW.to_bch_name,
-                    NEW.to_block_number,
-                    NEW.to_block_hash
-                WHERE NEW.msg_sub_type IN (%d, %d, %d, %d, %d, %d, %d, %d, %d, %d)
-                  AND COALESCE(
-                      NEW.to_login,
-                      (
-                          SELECT su.login
-                          FROM solana_users su
-                          WHERE su.blockchain_name = NEW.to_bch_name COLLATE NOCASE
-                          LIMIT 1
-                      ),
-                      CASE
-                          WHEN NEW.to_bch_name IS NOT NULL
-                           AND length(NEW.to_bch_name) > 4
-                           AND substr(NEW.to_bch_name, length(NEW.to_bch_name) - 3, 1) = '-'
-                          THEN substr(NEW.to_bch_name, 1, length(NEW.to_bch_name) - 4)
-                          ELSE NULL
-                      END
-                  ) IS NOT NULL
-                  AND NEW.to_bch_name IS NOT NULL;
-
-                -- 2) если запись есть — обновляем актуальные to_*
-                UPDATE connections_state
-                SET
-                    to_bch_name     = NEW.to_bch_name,
-                    to_block_number = NEW.to_block_number,
-                    to_block_hash   = NEW.to_block_hash
-                WHERE login = NEW.login
-                  AND rel_type = NEW.msg_sub_type
-                  AND to_login = COALESCE(
-                      NEW.to_login,
-                      (
-                          SELECT su.login
-                          FROM solana_users su
-                          WHERE su.blockchain_name = NEW.to_bch_name COLLATE NOCASE
-                          LIMIT 1
-                      ),
-                      CASE
-                          WHEN NEW.to_bch_name IS NOT NULL
-                           AND length(NEW.to_bch_name) > 4
-                           AND substr(NEW.to_bch_name, length(NEW.to_bch_name) - 3, 1) = '-'
-                          THEN substr(NEW.to_bch_name, 1, length(NEW.to_bch_name) - 4)
-                          ELSE NULL
-                      END
-                  )
-                  AND NEW.msg_sub_type IN (%d, %d, %d, %d, %d, %d, %d, %d, %d, %d)
-                  AND COALESCE(
-                      NEW.to_login,
-                      (
-                          SELECT su.login
-                          FROM solana_users su
-                          WHERE su.blockchain_name = NEW.to_bch_name COLLATE NOCASE
-                          LIMIT 1
-                      ),
-                      CASE
-                          WHEN NEW.to_bch_name IS NOT NULL
-                           AND length(NEW.to_bch_name) > 4
-                           AND substr(NEW.to_bch_name, length(NEW.to_bch_name) - 3, 1) = '-'
-                          THEN substr(NEW.to_bch_name, 1, length(NEW.to_bch_name) - 4)
-                          ELSE NULL
-                      END
-                  ) IS NOT NULL
-                  AND NEW.to_bch_name IS NOT NULL;
-
-                -- UNFRIEND/UNCONTACT/UNFOLLOW/UNSPOUSE/UNPARENT/UNCHILD/UNSIBLING/UNKNOWN_PERSON/SHINE_UN*:
-                -- удаляем соответствующее "позитивное" состояние
-                DELETE FROM connections_state
-                WHERE login = NEW.login
-                  AND to_login = COALESCE(
-                      NEW.to_login,
-                      (
-                          SELECT su.login
-                          FROM solana_users su
-                          WHERE su.blockchain_name = NEW.to_bch_name COLLATE NOCASE
-                          LIMIT 1
-                      ),
-                      CASE
-                          WHEN NEW.to_bch_name IS NOT NULL
-                           AND length(NEW.to_bch_name) > 4
-                           AND substr(NEW.to_bch_name, length(NEW.to_bch_name) - 3, 1) = '-'
-                          THEN substr(NEW.to_bch_name, 1, length(NEW.to_bch_name) - 4)
-                          ELSE NULL
-                      END
-                  )
-                  AND rel_type = CASE NEW.msg_sub_type
-                      WHEN %d THEN %d
-                      WHEN %d THEN %d
-                      WHEN %d THEN %d
-                      WHEN %d THEN %d
-                      WHEN %d THEN %d
-                      WHEN %d THEN %d
-                      WHEN %d THEN %d
-                      WHEN %d THEN %d
-                      WHEN %d THEN %d
-                      WHEN %d THEN %d
-                      ELSE rel_type
-                  END
-                  AND COALESCE(
-                      NEW.to_login,
-                      (
-                          SELECT su.login
-                          FROM solana_users su
-                          WHERE su.blockchain_name = NEW.to_bch_name COLLATE NOCASE
-                          LIMIT 1
-                      ),
-                      CASE
-                          WHEN NEW.to_bch_name IS NOT NULL
-                           AND length(NEW.to_bch_name) > 4
-                           AND substr(NEW.to_bch_name, length(NEW.to_bch_name) - 3, 1) = '-'
-                          THEN substr(NEW.to_bch_name, 1, length(NEW.to_bch_name) - 4)
-                          ELSE NULL
-                      END
-                  ) IS NOT NULL
-                  AND NEW.msg_sub_type IN (%d, %d, %d, %d, %d, %d, %d, %d, %d, %d);
-            END;
-            """.formatted(
-                FRIEND, CONTACT, FOLLOW, SPOUSE, PARENT, CHILD, SIBLING, KNOWN, SHINE_CONF, SHINE_SEEN,
-                FRIEND, CONTACT, FOLLOW, SPOUSE, PARENT, CHILD, SIBLING, KNOWN, SHINE_CONF, SHINE_SEEN,
-
-                UNFRIEND,  FRIEND,
-                UNCONTACT, CONTACT,
-                UNFOLLOW,  FOLLOW,
-                UNSPOUSE,  SPOUSE,
-                UNPARENT,  PARENT,
-                UNCHILD,   CHILD,
-                UNSIBLING, SIBLING,
-                UNKNOWN,   KNOWN,
-                SHINE_UNCONF, SHINE_CONF,
-                SHINE_UNSEEN, SHINE_SEEN,
-
-                UNFRIEND, UNCONTACT, UNFOLLOW, UNSPOUSE, UNPARENT, UNCHILD, UNSIBLING, UNKNOWN, SHINE_UNCONF, SHINE_UNSEEN
-            ));
-    }
-
-    private static void createMessageStatsLikeTrigger(Statement st) throws SQLException {
-        int LIKE = (int) DatabaseInitializer.REACTION_LIKE;
-        int UNLIKE = (int) DatabaseInitializer.REACTION_UNLIKE;
-
-        st.executeUpdate("""
-            CREATE TRIGGER IF NOT EXISTS trg_blocks_message_stats_like_ai
-            AFTER INSERT ON blocks
-            WHEN NEW.msg_type = 2 AND NEW.msg_sub_type IN (%d, %d)
-            BEGIN
-                -- ensure target stats row exists
-                INSERT OR IGNORE INTO message_stats (
-                    to_login, to_bch_name, to_block_number, to_block_hash,
-                    likes_count, replies_count, edits_count
-                )
-                SELECT
-                    NEW.to_login, NEW.to_bch_name, NEW.to_block_number, NEW.to_block_hash,
-                    0, 0, 0
-                WHERE NEW.to_login IS NOT NULL
-                  AND NEW.to_bch_name IS NOT NULL
-                  AND NEW.to_block_number IS NOT NULL
-                  AND NEW.to_block_hash IS NOT NULL;
-
-                -- apply delta by state transition (none/unlike->like = +1, like->unlike = -1)
-                UPDATE message_stats
-                SET likes_count = MAX(
-                    0,
-                    likes_count + (
-                        CASE
-                            WHEN NEW.msg_sub_type = %d
-                                 AND COALESCE((
-                                     SELECT b.msg_sub_type
-                                     FROM blocks b
-                                     WHERE b.login = NEW.login
-                                       AND b.bch_name = NEW.bch_name
-                                       AND b.msg_type = 2
-                                       AND b.to_login = NEW.to_login
-                                       AND b.to_bch_name = NEW.to_bch_name
-                                       AND b.to_block_number = NEW.to_block_number
-                                       AND b.to_block_hash = NEW.to_block_hash
-                                       AND b.block_number < NEW.block_number
-                                     ORDER BY b.block_number DESC
-                                     LIMIT 1
-                                 ), -1) <> %d
-                            THEN 1
-                            WHEN NEW.msg_sub_type = %d
-                                 AND COALESCE((
-                                     SELECT b.msg_sub_type
-                                     FROM blocks b
-                                     WHERE b.login = NEW.login
-                                       AND b.bch_name = NEW.bch_name
-                                       AND b.msg_type = 2
-                                       AND b.to_login = NEW.to_login
-                                       AND b.to_bch_name = NEW.to_bch_name
-                                       AND b.to_block_number = NEW.to_block_number
-                                       AND b.to_block_hash = NEW.to_block_hash
-                                       AND b.block_number < NEW.block_number
-                                     ORDER BY b.block_number DESC
-                                     LIMIT 1
-                                 ), -1) = %d
-                            THEN -1
-                            ELSE 0
-                        END
-                    )
-                )
-                WHERE to_login = NEW.to_login
-                  AND to_bch_name = NEW.to_bch_name
-                  AND to_block_number = NEW.to_block_number
-                  AND to_block_hash = NEW.to_block_hash
-                  AND NEW.to_login IS NOT NULL
-                  AND NEW.to_bch_name IS NOT NULL
-                  AND NEW.to_block_number IS NOT NULL
-                  AND NEW.to_block_hash IS NOT NULL;
-
-                -- persist latest actor->target reaction state
-                INSERT OR IGNORE INTO reactions_state (
-                    from_login, from_bch_name, reaction_type,
-                    to_login, to_bch_name, to_block_number, to_block_hash,
-                    last_sub_type
-                )
-                SELECT
-                    NEW.login, NEW.bch_name, %d,
-                    NEW.to_login, NEW.to_bch_name, NEW.to_block_number, NEW.to_block_hash,
-                    NEW.msg_sub_type
-                WHERE NEW.to_login IS NOT NULL
-                  AND NEW.to_bch_name IS NOT NULL
-                  AND NEW.to_block_number IS NOT NULL
-                  AND NEW.to_block_hash IS NOT NULL;
-
-                UPDATE reactions_state
-                SET last_sub_type = NEW.msg_sub_type
-                WHERE from_login = NEW.login
-                  AND from_bch_name = NEW.bch_name
-                  AND reaction_type = %d
-                  AND to_login = NEW.to_login
-                  AND to_bch_name = NEW.to_bch_name
-                  AND to_block_number = NEW.to_block_number
-                  AND to_block_hash = NEW.to_block_hash
-                  AND NEW.to_login IS NOT NULL
-                  AND NEW.to_bch_name IS NOT NULL
-                  AND NEW.to_block_number IS NOT NULL
-                  AND NEW.to_block_hash IS NOT NULL;
-            END;
-            """.formatted(
-                LIKE, UNLIKE,
-                LIKE, LIKE,
-                UNLIKE, LIKE,
-                LIKE,
-                LIKE
-            ));
-    }
-
-    private static void createMessageStatsReplyTrigger(Statement st) throws SQLException {
-        int REPLY = (int) DatabaseInitializer.TEXT_REPLY;
-
-        st.executeUpdate("""
-            CREATE TRIGGER IF NOT EXISTS trg_blocks_message_stats_reply_ai
-            AFTER INSERT ON blocks
-            WHEN NEW.msg_type = 1 AND NEW.msg_sub_type = %d
-            BEGIN
-                INSERT OR IGNORE INTO message_stats (
-                    to_login, to_bch_name, to_block_number, to_block_hash,
-                    likes_count, replies_count, edits_count
-                )
-                SELECT
-                    NEW.to_login, NEW.to_bch_name, NEW.to_block_number, NEW.to_block_hash,
-                    0, 0, 0
-                WHERE NEW.to_login IS NOT NULL
-                  AND NEW.to_bch_name IS NOT NULL
-                  AND NEW.to_block_number IS NOT NULL
-                  AND NEW.to_block_hash IS NOT NULL;
-
-                UPDATE message_stats
-                SET replies_count = replies_count + 1
-                WHERE to_login = NEW.to_login
-                  AND to_bch_name = NEW.to_bch_name
-                  AND to_block_number = NEW.to_block_number
-                  AND to_block_hash = NEW.to_block_hash
-                  AND NEW.to_login IS NOT NULL
-                  AND NEW.to_bch_name IS NOT NULL
-                  AND NEW.to_block_number IS NOT NULL
-                  AND NEW.to_block_hash IS NOT NULL;
-            END;
-            """.formatted(REPLY));
-    }
-
-    private static void createEditApplyTrigger(Statement st) throws SQLException {
-        int EDIT_POST = (int) DatabaseInitializer.TEXT_EDIT_POST;
-        int EDIT_REPLY = (int) DatabaseInitializer.TEXT_EDIT_REPLY;
-
-        st.executeUpdate("""
-            CREATE TRIGGER IF NOT EXISTS trg_blocks_edit_apply_ai
-            AFTER INSERT ON blocks
-            WHEN NEW.msg_type = 1 AND NEW.msg_sub_type IN (%d, %d)
-            BEGIN
-                -- 1) помечаем исходный блок, что его "перекрыл" этот edit
-                UPDATE blocks
-                SET edited_by_block_number = NEW.block_number
-                WHERE login = NEW.login
-                  AND bch_name = NEW.bch_name
-                  AND block_number = NEW.to_block_number
-                  AND NEW.to_block_number IS NOT NULL;
-
-                -- 2) создаём stats-строку если её не было
-                INSERT OR IGNORE INTO message_stats (
-                    to_login, to_bch_name, to_block_number, to_block_hash,
-                    likes_count, replies_count, edits_count
-                )
-                SELECT
-                    NEW.to_login, NEW.to_bch_name, NEW.to_block_number, NEW.to_block_hash,
-                    0, 0, 0
-                WHERE NEW.to_login IS NOT NULL
-                  AND NEW.to_bch_name IS NOT NULL
-                  AND NEW.to_block_number IS NOT NULL
-                  AND NEW.to_block_hash IS NOT NULL;
-
-                -- 3) +1 edit
-                UPDATE message_stats
-                SET edits_count = edits_count + 1
-                WHERE to_login = NEW.to_login
-                  AND to_bch_name = NEW.to_bch_name
-                  AND to_block_number = NEW.to_block_number
-                  AND to_block_hash = NEW.to_block_hash
-                  AND NEW.to_login IS NOT NULL
-                  AND NEW.to_bch_name IS NOT NULL
-                  AND NEW.to_block_number IS NOT NULL
-                  AND NEW.to_block_hash IS NOT NULL;
-            END;
-            """.formatted(EDIT_POST, EDIT_REPLY));
-    }
-}

SHiNE-server/shine-server-db/src/main/java/shine/db/DbController.java

@@ -0,0 +1,61 @@
+package shine.db;
+
+import shine.db.connection.DbProvider;
+import shine.db.dao.DmDialogStateDAO;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+
+/**
+ * Нейтральная точка входа в runtime БД сервера.
+ *
+ * Runtime-сервер теперь поддерживает только PostgreSQL.
+ */
+public final class DbController implements DbProvider {
+
+    private static volatile DbController instance;
+
+    private final PostgresDbController delegate;
+    private volatile boolean dmDialogStateBootstrapped;
+
+    private DbController() {
+        this.delegate = PostgresDbController.getInstance();
+    }
+
+    public static DbController getInstance() {
+        if (instance == null) {
+            synchronized (DbController.class) {
+                if (instance == null) {
+                    DbController created = new DbController();
+                    instance = created;
+                    created.bootstrapDmDialogStateIfNeeded();
+                }
+            }
+        }
+        return instance;
+    }
+
+    @Override
+    public Connection getConnection() throws SQLException {
+        return delegate.getConnection();
+    }
+
+    @Override
+    public void close() {
+        delegate.close();
+    }
+
+    private void bootstrapDmDialogStateIfNeeded() {
+        if (dmDialogStateBootstrapped) return;
+        synchronized (this) {
+            if (dmDialogStateBootstrapped) return;
+            try (Connection connection = delegate.getConnection()) {
+                DmDialogStateDAO.getInstance().bootstrapIfEmpty(connection);
+                dmDialogStateBootstrapped = true;
+            } catch (SQLException e) {
+                instance = null;
+                throw new RuntimeException("DM dialog state bootstrap failed", e);
+            }
+        }
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/KeyEncodingUtil.java

@@ -0,0 +1,115 @@
+package shine.db;
+
+import java.util.Base64;
+
+/**
+ * Нормализация ключей из разных storage-слоёв к каноническому Base64(32).
+ */
+public final class KeyEncodingUtil {
+
+    private static final String BASE58_ALPHABET =
+            "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
+
+    private static final int[] BASE58_INDEXES = new int[128];
+
+    static {
+        for (int i = 0; i < BASE58_INDEXES.length; i++) {
+            BASE58_INDEXES[i] = -1;
+        }
+        for (int i = 0; i < BASE58_ALPHABET.length(); i++) {
+            BASE58_INDEXES[BASE58_ALPHABET.charAt(i)] = i;
+        }
+    }
+
+    private KeyEncodingUtil() {}
+
+    public static String normalizeKeyToBase64_32(String rawKey) {
+        if (rawKey == null) {
+            return null;
+        }
+
+        String value = rawKey.trim();
+        if (value.isEmpty()) {
+            return value;
+        }
+
+        byte[] asBase64 = tryDecodeBase64_32(value);
+        if (asBase64 != null) {
+            return Base64.getEncoder().encodeToString(asBase64);
+        }
+
+        byte[] asBase58 = tryDecodeBase58_32(value);
+        if (asBase58 != null) {
+            return Base64.getEncoder().encodeToString(asBase58);
+        }
+
+        return value;
+    }
+
+    private static byte[] tryDecodeBase64_32(String value) {
+        try {
+            byte[] decoded = Base64.getDecoder().decode(value);
+            return decoded.length == 32 ? decoded : null;
+        } catch (IllegalArgumentException ignore) {
+            return null;
+        }
+    }
+
+    private static byte[] tryDecodeBase58_32(String value) {
+        byte[] decoded = decodeBase58(value);
+        return decoded.length == 32 ? decoded : null;
+    }
+
+    private static byte[] decodeBase58(String input) {
+        if (input.isEmpty()) {
+            return new byte[0];
+        }
+
+        byte[] input58 = new byte[input.length()];
+        for (int i = 0; i < input.length(); i++) {
+            char c = input.charAt(i);
+            if (c >= BASE58_INDEXES.length || BASE58_INDEXES[c] < 0) {
+                return new byte[0];
+            }
+            input58[i] = (byte) BASE58_INDEXES[c];
+        }
+
+        int zeros = 0;
+        while (zeros < input58.length && input58[zeros] == 0) {
+            zeros++;
+        }
+
+        byte[] decoded = new byte[input.length()];
+        int outputStart = decoded.length;
+        int inputStart = zeros;
+        while (inputStart < input58.length) {
+            int mod = divmod256(input58, inputStart);
+            if (input58[inputStart] == 0) {
+                inputStart++;
+            }
+            decoded[--outputStart] = (byte) mod;
+        }
+
+        while (outputStart < decoded.length && decoded[outputStart] == 0) {
+            outputStart++;
+        }
+
+        byte[] result = new byte[decoded.length - outputStart + zeros];
+        for (int i = 0; i < zeros; i++) {
+            result[i] = 0;
+        }
+        System.arraycopy(decoded, outputStart, result, zeros, decoded.length - outputStart);
+        return result;
+    }
+
+    private static int divmod256(byte[] number58, int startAt) {
+        int remainder = 0;
+        for (int i = startAt; i < number58.length; i++) {
+            int digit58 = number58[i] & 0xFF;
+            int temp = remainder * 58 + digit58;
+            number58[i] = (byte) (temp / 256);
+            remainder = temp % 256;
+        }
+        return remainder;
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/MsgSubType.java

@@ -30,8 +30,23 @@ public final class MsgSubType {
     /** EDIT_REPLY — редактирование исходного ответа. */
     public static final short TEXT_EDIT_REPLY = 21;
 
-    /** REPOST — репост сообщения в линии канала (с комментарием и target на оригинал). */
+    /** RATING — target-based отзыв на конкретный блок. */
-    public static final short TEXT_REPOST = 30;
+    public static final short TEXT_RATING = 30;
+
+    /** REPOST — отложенная будущая заготовка репоста сообщения в линии канала. */
+    public static final short TEXT_REPOST = 50;
+
+    /** CHANNEL_META — скрытый технический снимок профиля канала. */
+    public static final short TEXT_CHANNEL_META = 90;
+
+    /** ENTRYPOINT — входная страница канала (line-based). */
+    public static final short TEXT_ENTRYPOINT = 100;
+    /** EXERCISE — упражнение/комплекс (line-based). */
+    public static final short TEXT_EXERCISE = 110;
+    /** SERVICE — услуга/процедура (line-based). */
+    public static final short TEXT_SERVICE = 120;
+    /** COURSE — курс (line-based). */
+    public static final short TEXT_COURSE = 130;
 
     /* ===================== REACTION (msg_type=2) ===================== */
 
@@ -43,23 +58,23 @@ public final class MsgSubType {
     /* ===================== CONNECTION (msg_type=3) ===================== */
     /**
  * Совпадает с ConnectionBody:
- * SET:   CLOSE_FRIEND(=FRIEND)=10, CONTACT=20, FOLLOW=30, SPOUSE=40, PARENT=50, CHILD=52, SIBLING=54,
+ * SET:   CLOSE_FRIEND=10, FRIEND=14, CONTACT=20, FOLLOW=30, SPOUSE=40, PARENT=50, CHILD=52, SIBLING=54,
- *        KNOWN_PERSON=60, SHINE_CONFIRMED=70, SHINE_SEEN=74
+ *        KNOWN_PERSON(legacy)=60, SHINE_CONFIRMED=70, SHINE_SEEN=74, OFFICIAL_ACCOUNT_CONFIRMED=80
- * UNSET: UNCLOSE_FRIEND(=UNFRIEND)=11, UNCONTACT=21, UNFOLLOW=31, UNSPOUSE=41, UNPARENT=51, UNCHILD=53, UNSIBLING=55,
+ * UNSET: UNCLOSE_FRIEND=11, UNFRIEND=15, UNCONTACT=21, UNFOLLOW=31, UNSPOUSE=41, UNPARENT=51, UNCHILD=53, UNSIBLING=55,
- *        UNKNOWN_PERSON=61, SHINE_UNCONFIRMED=71, SHINE_UNSEEN=75
+ *        UNKNOWN_PERSON(legacy)=61, SHINE_UNCONFIRMED=71, SHINE_UNSEEN=75, OFFICIAL_ACCOUNT_UNCONFIRMED=81
      */
 
     /** Добавить в близкие друзья (close friend). */
-    public static final short CONNECTION_FRIEND = 10;
+    public static final short CONNECTION_CLOSE_FRIEND = 10;
 
     /** Удалить из близких друзей (close friend). */
-    public static final short CONNECTION_UNFRIEND = 11;
+    public static final short CONNECTION_UNCLOSE_FRIEND = 11;
 
-    /** Alias: добавить в close friend (то же значение, что CONNECTION_FRIEND). */
+    /** Добавить в друзья. */
-    public static final short CONNECTION_CLOSE_FRIEND = CONNECTION_FRIEND;
+    public static final short CONNECTION_FRIEND = 14;
 
-    /** Alias: удалить из close friend (то же значение, что CONNECTION_UNFRIEND). */
+    /** Удалить из друзей. */
-    public static final short CONNECTION_UNCLOSE_FRIEND = CONNECTION_UNFRIEND;
+    public static final short CONNECTION_UNFRIEND = 15;
 
     /** Добавить в контакты. */
     public static final short CONNECTION_CONTACT = 20;
@@ -67,12 +82,14 @@ public final class MsgSubType {
     /** Удалить из контактов. */
     public static final short CONNECTION_UNCONTACT = 21;
 
+    // FOLLOW на публичный канал используется. Старый FOLLOW пользователя считается legacy. DO NOT REMOVE.
     /** Подписаться (follow). */
     public static final short CONNECTION_FOLLOW = 30;
 
     /** Отписаться (unfollow). */
     public static final short CONNECTION_UNFOLLOW = 31;
 
+    // Родственные связи пока не используются в UI. Сохраняем коды. DO NOT REMOVE.
     /** Добавить связь "жена/муж". */
     public static final short CONNECTION_SPOUSE = 40;
 
@@ -97,10 +114,8 @@ public final class MsgSubType {
     /** Удалить связь "брат/сестра". */
     public static final short CONNECTION_UNSIBLING = 55;
 
-    /** Просто знаю этого человека. */
+    // Legacy 60/61: принимаем старые данные, но новый UI их не использует. DO NOT REMOVE.
     public static final short CONNECTION_KNOWN_PERSON = 60;
-
-    /** Не знаю этого человека. */
     public static final short CONNECTION_UNKNOWN_PERSON = 61;
 
     /** Точно уверен, что сияющий. */
@@ -109,17 +124,36 @@ public final class MsgSubType {
     /** Не подтверждаю, что сияющий. */
     public static final short CONNECTION_SHINE_UNCONFIRMED = 71;
 
+    // Пока не используется в UI. Сохраняем для совместимости. DO NOT REMOVE.
     /** Мало знаком, но видел сияющим. */
     public static final short CONNECTION_SHINE_SEEN = 74;
 
     /** Не отмечаю, что видел сияющим. */
     public static final short CONNECTION_SHINE_UNSEEN = 75;
 
+    /** Подтверждение официального аккаунта человека. */
+    public static final short CONNECTION_OFFICIAL_ACCOUNT_CONFIRMED = 80;
+
+    /** Снятие подтверждения официального аккаунта человека. */
+    public static final short CONNECTION_OFFICIAL_ACCOUNT_UNCONFIRMED = 81;
+
     /* ===================== USER_PARAM (msg_type=4) ===================== */
 
     /** Параметр профиля key/value (обе строки). */
     public static final short USER_PARAM_TEXT_TEXT = 1;
 
+    /* ===================== STATUS_ACTION (msg_type=5) ===================== */
+
+    public static final short STATUS_DONE_ONCE = 10;
+    public static final short STATUS_LEARNED = 20;
+    public static final short STATUS_SERVICE_PASSED = 30;
+    public static final short STATUS_CONFIRMED = 100;
+    public static final short STATUS_INTERESTED = 110;
+    public static final short STATUS_STARTED = 120;
+    public static final short STATUS_IN_STUDY = 130;
+    public static final short STATUS_ABANDONED = 140;
+    public static final short STATUS_COMPLETED = 150;
+
     /* ===================== РЕЗЕРВ НА БУДУЩЕЕ ===================== */
     // Если позже захочешь BLOCK/UNBLOCK — лучше добавить новые значения,
     // не трогая уже занятые коды.

SHiNE-server/shine-server-db/src/main/java/shine/db/PostgresDbController.java

@@ -0,0 +1,63 @@
+package shine.db;
+
+import shine.db.connection.DriverManagerDbProvider;
+import utils.config.AppConfig;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+
+public final class PostgresDbController {
+
+    private static volatile PostgresDbController instance;
+
+    private final DriverManagerDbProvider delegate;
+
+    private PostgresDbController() {
+        AppConfig config = AppConfig.getInstance();
+        String jdbcUrl = trimToNull(config.getParam("db.url"));
+        String dbUser = trimToNull(config.getParam("db.user"));
+        String dbPassword = trimToNull(config.getParam("db.password"));
+
+        if (jdbcUrl == null) {
+            throw new IllegalStateException("Config param 'db.url' is required and must point to PostgreSQL");
+        }
+        if (!jdbcUrl.startsWith("jdbc:postgresql:")) {
+            throw new IllegalStateException("Only PostgreSQL runtime is supported. Unsupported db.url=" + jdbcUrl);
+        }
+
+        try {
+            DatabaseInitializer.ensurePostgresSchemaInitialized(jdbcUrl, dbUser, dbPassword);
+        } catch (SQLException e) {
+            throw new RuntimeException("PostgreSQL schema auto-init failed", e);
+        }
+
+        this.delegate = new DriverManagerDbProvider(jdbcUrl, dbUser, dbPassword, connection -> {
+            connection.setAutoCommit(true);
+        });
+    }
+
+    public static PostgresDbController getInstance() {
+        if (instance == null) {
+            synchronized (PostgresDbController.class) {
+                if (instance == null) {
+                    instance = new PostgresDbController();
+                }
+            }
+        }
+        return instance;
+    }
+
+    public Connection getConnection() throws SQLException {
+        return delegate.getConnection();
+    }
+
+    public void close() {
+        // no-op
+    }
+
+    private static String trimToNull(String value) {
+        if (value == null) return null;
+        String trimmed = value.trim();
+        return trimmed.isEmpty() ? null : trimmed;
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/SqliteDbController.java

@@ -1,846 +0,0 @@
-package shine.db;
-
-import utils.config.AppConfig;
-
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.sql.Connection;
-import java.sql.DriverManager;
-import java.sql.ResultSet;
-import java.sql.SQLException;
-import java.sql.Statement;
-
-public final class SqliteDbController {
-
-    private static volatile SqliteDbController instance;
-    private static final int LATEST_SCHEMA_VERSION = 12;
-
-    private final String jdbcUrl;
-
-    private SqliteDbController() {
-        try {
-            Class.forName("org.sqlite.JDBC");
-        } catch (ClassNotFoundException e) {
-            throw new RuntimeException("SQLite JDBC driver not found", e);
-        }
-
-        String dbPath = AppConfig.getInstance().getParam("db.path");
-        if (dbPath == null || dbPath.isBlank()) {
-            throw new RuntimeException("Config param 'db.path' is not set in application.properties");
-        }
-
-        Path dbFile = Paths.get(dbPath);
-
-        if (!Files.exists(dbFile)) {
-            System.out.println("[DB] Файл БД не найден: " + dbFile.toAbsolutePath());
-            System.out.println("[DB] Создаём новую БД с помощью DatabaseInitializer...");
-            DatabaseInitializer.createNewDB(new String[0]);
-        }
-
-        this.jdbcUrl = "jdbc:sqlite:" + dbPath;
-        ensureSchemaMigrations();
-    }
-
-    public static SqliteDbController getInstance() {
-        if (instance == null) {
-            synchronized (SqliteDbController.class) {
-                if (instance == null) {
-                    instance = new SqliteDbController();
-                }
-            }
-        }
-        return instance;
-    }
-
-    public Connection getConnection() throws SQLException {
-        Connection conn = DriverManager.getConnection(jdbcUrl);
-        conn.setAutoCommit(true);
-
-        try (Statement st = conn.createStatement()) {
-            st.execute("PRAGMA foreign_keys = ON");
-            st.execute("PRAGMA journal_mode = WAL");
-            st.execute("PRAGMA synchronous = NORMAL");
-            st.execute("PRAGMA busy_timeout = 5000");
-        }
-
-        return conn;
-    }
-
-    public void close() {
-        // no-op
-    }
-
-    private void ensureSchemaMigrations() {
-        int currentVersion = getCurrentSchemaVersion();
-
-        while (currentVersion < LATEST_SCHEMA_VERSION) {
-            int nextVersion = currentVersion + 1;
-            applyMigration(nextVersion);
-            currentVersion = nextVersion;
-        }
-    }
-
-    private void applyMigration(int targetVersion) {
-        switch (targetVersion) {
-            case 1 -> migrateToV1();
-            case 2 -> migrateToV2();
-            case 3 -> migrateToV3();
-            case 4 -> migrateToV4();
-            case 5 -> migrateToV5();
-            case 6 -> migrateToV6();
-            case 7 -> migrateToV7();
-            case 8 -> migrateToV8();
-            case 9 -> migrateToV9();
-            case 10 -> migrateToV10();
-            case 11 -> migrateToV11();
-            case 12 -> migrateToV12();
-            default -> throw new RuntimeException("Unknown DB migration target version: " + targetVersion);
-        }
-    }
-
-    private void migrateToV1() {
-        try {
-            DatabaseInitializer.ensureSchemaV1Structure(jdbcUrl);
-        } catch (SQLException e) {
-            throw new RuntimeException("DB migration to v1 failed (base schema)", e);
-        }
-
-        try (Connection c = DriverManager.getConnection(jdbcUrl);
-             Statement st = c.createStatement()) {
-            c.setAutoCommit(false);
-            try {
-                st.execute("PRAGMA foreign_keys = OFF");
-
-                if (tableExists(c, "connections_state") && needsConnectionsStateUpgrade(c)) {
-                    rebuildConnectionsStateTable(st);
-                }
-
-                ensureChannelNamesDescriptionColumn(c, st);
-                ensureChannelNamesTypeColumns(c, st);
-                ensureSignedMessageReceiptUniq(c, st);
-                DatabaseTriggersInstaller.createAllTriggers(st);
-                setSchemaVersion(c, 1);
-
-                st.execute("PRAGMA foreign_keys = ON");
-                c.commit();
-            } catch (Exception e) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw new RuntimeException("DB migration to v1 failed", e);
-            } finally {
-                try { c.setAutoCommit(true); } catch (Exception ignored) {}
-            }
-        } catch (SQLException e) {
-            throw new RuntimeException("DB migration to v1 failed", e);
-        }
-    }
-
-    private void migrateToV2() {
-        try (Connection c = DriverManager.getConnection(jdbcUrl);
-             Statement st = c.createStatement()) {
-            c.setAutoCommit(false);
-            try {
-                st.execute("PRAGMA foreign_keys = OFF");
-                st.executeUpdate("DROP TABLE IF EXISTS message_views_state");
-                st.executeUpdate("DROP INDEX IF EXISTS idx_message_views_state_target");
-                st.executeUpdate("DROP INDEX IF EXISTS idx_message_views_state_viewer_channel");
-                setSchemaVersion(c, 2);
-                st.execute("PRAGMA foreign_keys = ON");
-                c.commit();
-            } catch (Exception e) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw new RuntimeException("DB migration to v2 failed", e);
-            } finally {
-                try { c.setAutoCommit(true); } catch (Exception ignored) {}
-            }
-        } catch (SQLException e) {
-            throw new RuntimeException("DB migration to v2 failed", e);
-        }
-    }
-
-    private void migrateToV3() {
-        try (Connection c = DriverManager.getConnection(jdbcUrl);
-             Statement st = c.createStatement()) {
-            c.setAutoCommit(false);
-            try {
-                ensureChat200StateTables(st);
-                setSchemaVersion(c, 3);
-                c.commit();
-            } catch (Exception e) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw new RuntimeException("DB migration to v3 failed", e);
-            } finally {
-                try { c.setAutoCommit(true); } catch (Exception ignored) {}
-            }
-        } catch (SQLException e) {
-            throw new RuntimeException("DB migration to v3 failed", e);
-        }
-    }
-
-    private void migrateToV4() {
-        try (Connection c = DriverManager.getConnection(jdbcUrl);
-             Statement st = c.createStatement()) {
-            c.setAutoCommit(false);
-            try {
-                ensureActiveSessionsSessionTypeColumn(c, st);
-                ensureActiveSessionsClientPlatformColumn(c, st);
-                setSchemaVersion(c, 4);
-                c.commit();
-            } catch (Exception e) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw new RuntimeException("DB migration to v4 failed", e);
-            } finally {
-                try { c.setAutoCommit(true); } catch (Exception ignored) {}
-            }
-        } catch (SQLException e) {
-            throw new RuntimeException("DB migration to v4 failed", e);
-        }
-    }
-
-    private void migrateToV5() {
-        try (Connection c = DriverManager.getConnection(jdbcUrl);
-             Statement st = c.createStatement()) {
-            c.setAutoCommit(false);
-            try {
-                ensureEspPairingTables(st);
-                setSchemaVersion(c, 5);
-                c.commit();
-            } catch (Exception e) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw new RuntimeException("DB migration to v5 failed", e);
-            } finally {
-                try { c.setAutoCommit(true); } catch (Exception ignored) {}
-            }
-        } catch (SQLException e) {
-            throw new RuntimeException("DB migration to v5 failed", e);
-        }
-    }
-
-    private void migrateToV6() {
-        try (Connection c = DriverManager.getConnection(jdbcUrl);
-             Statement st = c.createStatement()) {
-            c.setAutoCommit(false);
-            try {
-                ensureSignedMessagesRevisionColumn(c, st);
-                setSchemaVersion(c, 6);
-                c.commit();
-            } catch (Exception e) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw new RuntimeException("DB migration to v6 failed", e);
-            } finally {
-                try { c.setAutoCommit(true); } catch (Exception ignored) {}
-            }
-        } catch (SQLException e) {
-            throw new RuntimeException("DB migration to v6 failed", e);
-        }
-    }
-
-    private void migrateToV7() {
-        try (Connection c = DriverManager.getConnection(jdbcUrl);
-             Statement st = c.createStatement()) {
-            c.setAutoCommit(false);
-            try {
-                dropDmFileTables(st);
-                setSchemaVersion(c, 7);
-                c.commit();
-            } catch (Exception e) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw new RuntimeException("DB migration to v7 failed", e);
-            } finally {
-                try { c.setAutoCommit(true); } catch (Exception ignored) {}
-            }
-        } catch (SQLException e) {
-            throw new RuntimeException("DB migration to v7 failed", e);
-        }
-    }
-
-    private void migrateToV8() {
-        try (Connection c = DriverManager.getConnection(jdbcUrl);
-             Statement st = c.createStatement()) {
-            c.setAutoCommit(false);
-            try {
-                ensureTestFreeAvatarUploadsTable(st);
-                setSchemaVersion(c, 8);
-                c.commit();
-            } catch (Exception e) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw new RuntimeException("DB migration to v8 failed", e);
-            } finally {
-                try { c.setAutoCommit(true); } catch (Exception ignored) {}
-            }
-        } catch (SQLException e) {
-            throw new RuntimeException("DB migration to v8 failed", e);
-        }
-    }
-
-    private void migrateToV9() {
-        try (Connection c = DriverManager.getConnection(jdbcUrl);
-             Statement st = c.createStatement()) {
-            c.setAutoCommit(false);
-            try {
-                ensureSyncServersTable(st);
-                setSchemaVersion(c, 9);
-                c.commit();
-            } catch (Exception e) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw new RuntimeException("DB migration to v9 failed", e);
-            } finally {
-                try { c.setAutoCommit(true); } catch (Exception ignored) {}
-            }
-        } catch (SQLException e) {
-            throw new RuntimeException("DB migration to v9 failed", e);
-        }
-    }
-
-    private void migrateToV10() {
-        try (Connection c = DriverManager.getConnection(jdbcUrl);
-             Statement st = c.createStatement()) {
-            c.setAutoCommit(false);
-            try {
-                ensureSignedMessagesReencryptedColumn(c, st);
-                setSchemaVersion(c, 10);
-                c.commit();
-            } catch (Exception e) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw new RuntimeException("DB migration to v10 failed", e);
-            } finally {
-                try { c.setAutoCommit(true); } catch (Exception ignored) {}
-            }
-        } catch (SQLException e) {
-            throw new RuntimeException("DB migration to v10 failed", e);
-        }
-    }
-
-    private void migrateToV11() {
-        try (Connection c = DriverManager.getConnection(jdbcUrl);
-             Statement st = c.createStatement()) {
-            c.setAutoCommit(false);
-            try {
-                clearLegacySignedMessagesForDmV11(c, st);
-                setSchemaVersion(c, 11);
-                c.commit();
-            } catch (Exception e) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw new RuntimeException("DB migration to v11 failed", e);
-            } finally {
-                try { c.setAutoCommit(true); } catch (Exception ignored) {}
-            }
-        } catch (SQLException e) {
-            throw new RuntimeException("DB migration to v11 failed", e);
-        }
-    }
-
-    private void migrateToV12() {
-        try (Connection c = DriverManager.getConnection(jdbcUrl);
-             Statement st = c.createStatement()) {
-            c.setAutoCommit(false);
-            try {
-                ensureSignedMessagesReadAtColumn(c, st);
-                backfillSignedMessagesReadAt(st);
-                setSchemaVersion(c, 12);
-                c.commit();
-            } catch (Exception e) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw new RuntimeException("DB migration to v12 failed", e);
-            } finally {
-                try { c.setAutoCommit(true); } catch (Exception ignored) {}
-            }
-        } catch (SQLException e) {
-            throw new RuntimeException("DB migration to v12 failed", e);
-        }
-    }
-
-    private static void ensureChat200StateTables(Statement st) throws SQLException {
-        st.executeUpdate("""
-            CREATE TABLE IF NOT EXISTS chat200_state (
-                owner_login               TEXT    NOT NULL,
-                owner_bch_name            TEXT    NOT NULL,
-                channel_root_block_number INTEGER NOT NULL,
-                channel_root_block_hash   BLOB    NOT NULL,
-                channel_name              TEXT    NOT NULL,
-                channel_type_version      INTEGER NOT NULL,
-                chat_title                TEXT    NOT NULL DEFAULT '',
-                updated_at_ms             INTEGER NOT NULL,
-                PRIMARY KEY (owner_bch_name, channel_root_block_number)
-            );
-            """);
-
-        st.executeUpdate("""
-            CREATE TABLE IF NOT EXISTS chat200_members_state (
-                owner_bch_name            TEXT    NOT NULL,
-                channel_root_block_number INTEGER NOT NULL,
-                member_login              TEXT    NOT NULL,
-                member_channel_name       TEXT    NOT NULL,
-                is_active                 INTEGER NOT NULL,
-                updated_at_ms             INTEGER NOT NULL,
-                updated_by_block_number   INTEGER NOT NULL,
-                PRIMARY KEY (
-                    owner_bch_name,
-                    channel_root_block_number,
-                    member_login,
-                    member_channel_name
-                )
-            );
-            """);
-
-        st.executeUpdate("""
-            CREATE INDEX IF NOT EXISTS idx_chat200_state_owner
-            ON chat200_state (owner_login, owner_bch_name);
-            """);
-
-        st.executeUpdate("""
-            CREATE INDEX IF NOT EXISTS idx_chat200_members_owner
-            ON chat200_members_state (owner_bch_name, channel_root_block_number, is_active);
-            """);
-    }
-
-    private int getCurrentSchemaVersion() {
-        try (Connection c = DriverManager.getConnection(jdbcUrl)) {
-            if (!tableExists(c, DatabaseInitializer.DB_SCHEMA_VERSION_TABLE)) {
-                return 0;
-            }
-
-            try (var ps = c.prepareStatement("""
-                SELECT schema_version
-                FROM db_schema_version
-                WHERE id = 1
-                LIMIT 1
-                """);
-                 ResultSet rs = ps.executeQuery()) {
-                if (rs.next()) {
-                    return rs.getInt(1);
-                }
-            }
-            return 0;
-        } catch (SQLException e) {
-            throw new RuntimeException("Cannot read DB schema version", e);
-        }
-    }
-
-    private static void ensureActiveSessionsSessionTypeColumn(Connection c, Statement st) throws SQLException {
-        if (columnExists(c, "active_sessions", "session_type")) return;
-        st.executeUpdate("ALTER TABLE active_sessions ADD COLUMN session_type INTEGER NOT NULL DEFAULT 1");
-    }
-
-    private static void ensureActiveSessionsClientPlatformColumn(Connection c, Statement st) throws SQLException {
-        if (columnExists(c, "active_sessions", "client_platform")) return;
-        st.executeUpdate("ALTER TABLE active_sessions ADD COLUMN client_platform TEXT NOT NULL DEFAULT ''");
-    }
-
-    private static void ensureEspPairingTables(Statement st) throws SQLException {
-        st.executeUpdate("""
-            CREATE TABLE IF NOT EXISTS esp_pairing_settings (
-                login               TEXT    NOT NULL PRIMARY KEY COLLATE NOCASE,
-                enabled             INTEGER NOT NULL DEFAULT 0,
-                password_hash       TEXT    NOT NULL DEFAULT '',
-                ttl_seconds         INTEGER NOT NULL DEFAULT 300,
-                failed_attempts     INTEGER NOT NULL DEFAULT 0,
-                first_failed_at_ms  INTEGER NOT NULL DEFAULT 0,
-                blocked_until_ms    INTEGER NOT NULL DEFAULT 0,
-                updated_at_ms       INTEGER NOT NULL,
-                FOREIGN KEY (login) REFERENCES solana_users(login)
-            );
-            """);
-
-        st.executeUpdate("""
-            CREATE TABLE IF NOT EXISTS esp_pairing_requests (
-                pairing_id                TEXT    NOT NULL PRIMARY KEY,
-                login                     TEXT    NOT NULL,
-                requester_session_key     TEXT    NOT NULL,
-                requester_session_type    INTEGER NOT NULL DEFAULT 1,
-                requester_client_platform TEXT    NOT NULL DEFAULT '',
-                payload_type              INTEGER NOT NULL,
-                status                    TEXT    NOT NULL,
-                short_code                TEXT    NOT NULL,
-                fingerprint_b58           TEXT    NOT NULL,
-                encrypted_payload         TEXT,
-                reject_reason             TEXT,
-                approved_by_session_id    TEXT,
-                created_at_ms             INTEGER NOT NULL,
-                expires_at_ms             INTEGER NOT NULL,
-                updated_at_ms             INTEGER NOT NULL,
-                delivered_to_homeserver   INTEGER NOT NULL DEFAULT 0,
-                FOREIGN KEY (login) REFERENCES solana_users(login)
-            );
-            """);
-
-        st.executeUpdate("""
-            CREATE INDEX IF NOT EXISTS idx_esp_pairing_requests_login_status
-            ON esp_pairing_requests (login, status, expires_at_ms);
-            """);
-    }
-
-    private static void ensureSignedMessagesRevisionColumn(Connection c, Statement st) throws SQLException {
-        if (!tableExists(c, "signed_messages_v2")) return;
-        if (!columnExists(c, "signed_messages_v2", "revision_time_ms")) {
-            st.executeUpdate("ALTER TABLE signed_messages_v2 ADD COLUMN revision_time_ms INTEGER NOT NULL DEFAULT 0");
-        }
-    }
-
-    private static void ensureSignedMessagesReencryptedColumn(Connection c, Statement st) throws SQLException {
-        if (!tableExists(c, "signed_messages_v2")) return;
-        if (!columnExists(c, "signed_messages_v2", "reencrypted_at_ms")) {
-            st.executeUpdate("ALTER TABLE signed_messages_v2 ADD COLUMN reencrypted_at_ms INTEGER NOT NULL DEFAULT 0");
-        }
-    }
-
-    private static void ensureSignedMessagesReadAtColumn(Connection c, Statement st) throws SQLException {
-        if (!tableExists(c, "signed_messages_v2")) return;
-        if (!columnExists(c, "signed_messages_v2", "read_at_ms")) {
-            st.executeUpdate("ALTER TABLE signed_messages_v2 ADD COLUMN read_at_ms INTEGER");
-        }
-    }
-
-    private static void backfillSignedMessagesReadAt(Statement st) throws SQLException {
-        st.executeUpdate("""
-            UPDATE signed_messages_v2 AS content
-            SET read_at_ms = (
-                SELECT MIN(receipt.time_ms)
-                FROM signed_messages_v2 AS receipt
-                WHERE receipt.message_type IN (3, 4)
-                  AND receipt.receipt_ref_base_key = content.base_key
-            )
-            WHERE content.message_type IN (1, 2)
-              AND (content.read_at_ms IS NULL OR content.read_at_ms <= 0)
-              AND EXISTS (
-                SELECT 1
-                FROM signed_messages_v2 AS receipt
-                WHERE receipt.message_type IN (3, 4)
-                  AND receipt.receipt_ref_base_key = content.base_key
-              );
-            """);
-    }
-
-    /**
-     * Временная одноразовая миграция на переходе к SHiNE_DM v1:
-     * старые строки signed_messages_v2 больше не гарантированно совместимы
-     * с новым бинарным форматом и правилами tombstone/reencrypt.
-     * Позже эту миграцию нужно убрать, чтобы случайно не очищать рабочие DM.
-     */
-    private static void clearLegacySignedMessagesForDmV11(Connection c, Statement st) throws SQLException {
-        if (tableExists(c, "signed_message_session_delivery")) {
-            st.executeUpdate("DELETE FROM signed_message_session_delivery");
-        }
-        if (tableExists(c, "signed_messages_v2")) {
-            st.executeUpdate("DELETE FROM signed_messages_v2");
-        }
-    }
-
-    private static void dropDmFileTables(Statement st) throws SQLException {
-        st.executeUpdate("DROP INDEX IF EXISTS idx_dm_message_file_links_login");
-        st.executeUpdate("DROP INDEX IF EXISTS idx_dm_message_file_links_message");
-        st.executeUpdate("DROP TABLE IF EXISTS dm_message_file_links");
-        st.executeUpdate("DROP TABLE IF EXISTS dm_files");
-    }
-
-    private static boolean columnExists(Connection c, String tableName, String columnName) throws SQLException {
-        try (Statement probe = c.createStatement();
-             ResultSet rs = probe.executeQuery("PRAGMA table_info(" + tableName + ")")) {
-            while (rs.next()) {
-                if (columnName.equalsIgnoreCase(rs.getString("name"))) {
-                    return true;
-                }
-            }
-            return false;
-        }
-    }
-
-    private static void setSchemaVersion(Connection c, int version) throws SQLException {
-        try (var ps = c.prepareStatement("""
-            INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
-            VALUES (1, ?, CAST(strftime('%s','now') AS INTEGER) * 1000)
-            ON CONFLICT(id) DO UPDATE SET
-                schema_version = excluded.schema_version,
-                updated_at_ms = excluded.updated_at_ms
-            """)) {
-            ps.setInt(1, version);
-            ps.executeUpdate();
-        }
-    }
-
-    private static void ensureReactionsStateTable(Statement st) throws SQLException {
-        st.executeUpdate("""
-            CREATE TABLE IF NOT EXISTS reactions_state (
-                from_login       TEXT    NOT NULL,
-                from_bch_name    TEXT    NOT NULL,
-                reaction_type    INTEGER NOT NULL,
-                to_login         TEXT    NOT NULL,
-                to_bch_name      TEXT    NOT NULL,
-                to_block_number  INTEGER NOT NULL,
-                to_block_hash    BLOB    NOT NULL,
-                last_sub_type    INTEGER NOT NULL,
-                UNIQUE (
-                    from_login,
-                    from_bch_name,
-                    reaction_type,
-                    to_login,
-                    to_bch_name,
-                    to_block_number,
-                    to_block_hash
-                )
-            );
-            """);
-    }
-
-    private static void ensureTestFreeAvatarUploadsTable(Statement st) throws SQLException {
-        st.executeUpdate("""
-            CREATE TABLE IF NOT EXISTS test_free_avatar_uploads (
-                login         TEXT    NOT NULL PRIMARY KEY COLLATE NOCASE,
-                used_count    INTEGER NOT NULL DEFAULT 0,
-                updated_at_ms INTEGER NOT NULL,
-                last_tx_id    TEXT    NOT NULL DEFAULT '',
-                FOREIGN KEY (login) REFERENCES solana_users(login)
-            );
-            """);
-        st.executeUpdate("""
-            CREATE INDEX IF NOT EXISTS idx_test_free_avatar_uploads_updated
-            ON test_free_avatar_uploads (updated_at_ms);
-            """);
-    }
-
-    private static void ensureSyncServersTable(Statement st) throws SQLException {
-        st.executeUpdate("""
-            CREATE TABLE IF NOT EXISTS sync_servers (
-                login          TEXT    NOT NULL PRIMARY KEY COLLATE NOCASE,
-                server_address TEXT    NOT NULL DEFAULT '',
-                updated_at_ms  INTEGER NOT NULL
-            );
-            """);
-        st.executeUpdate("""
-            CREATE INDEX IF NOT EXISTS idx_sync_servers_updated
-            ON sync_servers (updated_at_ms);
-            """);
-    }
-
-
-    private static void createConnectionsStateTable(Statement st) throws SQLException {
-        st.executeUpdate("""
-            CREATE TABLE IF NOT EXISTS connections_state (
-                login           TEXT    NOT NULL,
-                rel_type        INTEGER NOT NULL,
-                to_login        TEXT    NOT NULL,
-                to_bch_name     TEXT    NOT NULL,
-                to_block_number INTEGER NOT NULL,
-                to_block_hash   BLOB    NOT NULL,
-                FOREIGN KEY (login) REFERENCES solana_users(login),
-                UNIQUE (login, rel_type, to_login, to_bch_name, to_block_number, to_block_hash)
-            );
-            """);
-    }
-
-    private static void ensureConnectionsIndexes(Statement st) throws SQLException {
-        st.executeUpdate("""
-            CREATE INDEX IF NOT EXISTS idx_connections_state_login
-            ON connections_state (login);
-            """);
-        st.executeUpdate("""
-            CREATE INDEX IF NOT EXISTS idx_connections_state_to_login
-            ON connections_state (to_login);
-            """);
-        st.executeUpdate("""
-            CREATE INDEX IF NOT EXISTS idx_connections_state_pair
-            ON connections_state (login, to_login);
-            """);
-        st.executeUpdate("""
-            CREATE INDEX IF NOT EXISTS idx_connections_state_target
-            ON connections_state (login, rel_type, to_bch_name, to_block_number);
-            """);
-    }
-
-    private static void ensureReactionsIndexes(Statement st) throws SQLException {
-        st.executeUpdate("""
-            CREATE INDEX IF NOT EXISTS idx_reactions_state_target
-            ON reactions_state (to_bch_name, to_block_number, to_block_hash);
-            """);
-        st.executeUpdate("""
-            CREATE INDEX IF NOT EXISTS idx_reactions_state_actor
-            ON reactions_state (from_login, from_bch_name, reaction_type);
-            """);
-    }
-
-    private static void ensureChannelNamesStateTable(Statement st) throws SQLException {
-        st.executeUpdate("""
-            CREATE TABLE IF NOT EXISTS channel_names_state (
-                slug                      TEXT    NOT NULL,
-                display_name              TEXT    NOT NULL,
-                channel_description       TEXT    NOT NULL DEFAULT '',
-                owner_login               TEXT    NOT NULL,
-                owner_bch_name            TEXT    NOT NULL,
-                channel_type_code         INTEGER NOT NULL DEFAULT 1,
-                channel_type_version      INTEGER NOT NULL DEFAULT 1,
-                channel_root_block_number INTEGER NOT NULL,
-                channel_root_block_hash   BLOB    NOT NULL,
-                created_at_ms             INTEGER NOT NULL
-            );
-            """);
-    }
-
-    private static void ensureChannelNamesDescriptionColumn(Connection c, Statement st) throws SQLException {
-        boolean hasDescription = false;
-        try (Statement probe = c.createStatement();
-             ResultSet rs = probe.executeQuery("PRAGMA table_info(channel_names_state)")) {
-            while (rs.next()) {
-                String name = rs.getString("name");
-                if ("channel_description".equalsIgnoreCase(name)) {
-                    hasDescription = true;
-                    break;
-                }
-            }
-        }
-
-        if (!hasDescription) {
-            st.executeUpdate("ALTER TABLE channel_names_state ADD COLUMN channel_description TEXT NOT NULL DEFAULT ''");
-        }
-    }
-
-    private static void ensureChannelNamesTypeColumns(Connection c, Statement st) throws SQLException {
-        boolean hasTypeCode = false;
-        boolean hasTypeVersion = false;
-
-        try (Statement probe = c.createStatement();
-             ResultSet rs = probe.executeQuery("PRAGMA table_info(channel_names_state)")) {
-            while (rs.next()) {
-                String name = rs.getString("name");
-                if ("channel_type_code".equalsIgnoreCase(name)) hasTypeCode = true;
-                if ("channel_type_version".equalsIgnoreCase(name)) hasTypeVersion = true;
-            }
-        }
-
-        if (!hasTypeCode) {
-            st.executeUpdate("ALTER TABLE channel_names_state ADD COLUMN channel_type_code INTEGER NOT NULL DEFAULT 1");
-        }
-        if (!hasTypeVersion) {
-            st.executeUpdate("ALTER TABLE channel_names_state ADD COLUMN channel_type_version INTEGER NOT NULL DEFAULT 1");
-        }
-    }
-
-    private static void ensureChannelNamesIndexes(Statement st) throws SQLException {
-        st.executeUpdate("DROP INDEX IF EXISTS uq_channel_names_state_slug");
-        st.executeUpdate("DROP INDEX IF EXISTS uq_channel_names_state_owner_slug");
-        st.executeUpdate("""
-            CREATE UNIQUE INDEX IF NOT EXISTS uq_channel_names_state_owner_type_slug
-            ON channel_names_state (owner_bch_name, channel_type_code, slug);
-            """);
-        st.executeUpdate("""
-            CREATE UNIQUE INDEX IF NOT EXISTS uq_channel_names_state_target
-            ON channel_names_state (owner_bch_name, channel_root_block_number, channel_root_block_hash);
-            """);
-        st.executeUpdate("""
-            CREATE INDEX IF NOT EXISTS idx_channel_names_state_owner
-            ON channel_names_state (owner_login, owner_bch_name);
-            """);
-    }
-
-    private static void ensureSignedMessageReceiptUniq(Connection c, Statement st) throws SQLException {
-        if (!tableExists(c, "signed_messages_v2")) return;
-
-        if (tableExists(c, "signed_message_session_delivery")) {
-            st.executeUpdate("""
-                DELETE FROM signed_message_session_delivery
-                WHERE message_key IN (
-                    SELECT message_key
-                    FROM signed_messages_v2
-                    WHERE message_type IN (3, 4)
-                      AND receipt_ref_base_key IS NOT NULL
-                      AND rowid NOT IN (
-                        SELECT MIN(rowid)
-                        FROM signed_messages_v2
-                        WHERE message_type IN (3, 4)
-                          AND receipt_ref_base_key IS NOT NULL
-                        GROUP BY target_login, message_type, receipt_ref_base_key
-                      )
-                );
-                """);
-        }
-
-        st.executeUpdate("""
-            DELETE FROM signed_messages_v2
-            WHERE message_type IN (3, 4)
-              AND receipt_ref_base_key IS NOT NULL
-              AND rowid NOT IN (
-                SELECT MIN(rowid)
-                FROM signed_messages_v2
-                WHERE message_type IN (3, 4)
-                  AND receipt_ref_base_key IS NOT NULL
-                GROUP BY target_login, message_type, receipt_ref_base_key
-              );
-            """);
-
-        st.executeUpdate("""
-            CREATE UNIQUE INDEX IF NOT EXISTS uq_signed_messages_v2_receipt_incoming
-            ON signed_messages_v2 (target_login, receipt_ref_base_key)
-            WHERE message_type = 3 AND receipt_ref_base_key IS NOT NULL;
-            """);
-        st.executeUpdate("""
-            CREATE UNIQUE INDEX IF NOT EXISTS uq_signed_messages_v2_receipt_outgoing
-            ON signed_messages_v2 (target_login, receipt_ref_base_key)
-            WHERE message_type = 4 AND receipt_ref_base_key IS NOT NULL;
-            """);
-    }
-
-    private static void rebuildConnectionsStateTable(Statement st) throws SQLException {
-        st.executeUpdate("DROP TABLE IF EXISTS connections_state_v2");
-        st.executeUpdate("""
-            CREATE TABLE connections_state_v2 (
-                login           TEXT    NOT NULL,
-                rel_type        INTEGER NOT NULL,
-                to_login        TEXT    NOT NULL,
-                to_bch_name     TEXT    NOT NULL,
-                to_block_number INTEGER NOT NULL,
-                to_block_hash   BLOB    NOT NULL,
-                FOREIGN KEY (login) REFERENCES solana_users(login),
-                UNIQUE (login, rel_type, to_login, to_bch_name, to_block_number, to_block_hash)
-            );
-            """);
-
-        st.executeUpdate("""
-            INSERT OR IGNORE INTO connections_state_v2
-                (login, rel_type, to_login, to_bch_name, to_block_number, to_block_hash)
-            SELECT
-                login,
-                rel_type,
-                to_login,
-                to_bch_name,
-                COALESCE(to_block_number, 0),
-                COALESCE(to_block_hash, zeroblob(32))
-            FROM connections_state
-            WHERE login IS NOT NULL
-              AND to_login IS NOT NULL
-              AND to_bch_name IS NOT NULL;
-            """);
-
-        st.executeUpdate("DROP TABLE connections_state");
-        st.executeUpdate("ALTER TABLE connections_state_v2 RENAME TO connections_state");
-    }
-
-    private static boolean tableExists(Connection c, String tableName) throws SQLException {
-        String sql = "SELECT 1 FROM sqlite_master WHERE type='table' AND name=? LIMIT 1";
-        try (var ps = c.prepareStatement(sql)) {
-            ps.setString(1, tableName);
-            try (ResultSet rs = ps.executeQuery()) {
-                return rs.next();
-            }
-        }
-    }
-
-    private static boolean needsConnectionsStateUpgrade(Connection c) throws SQLException {
-        boolean toBlockNumberNotNull = false;
-        boolean toBlockHashNotNull = false;
-
-        try (Statement st = c.createStatement();
-             ResultSet rs = st.executeQuery("PRAGMA table_info(connections_state)")) {
-            while (rs.next()) {
-                String name = rs.getString("name");
-                int notNull = rs.getInt("notnull");
-                if ("to_block_number".equalsIgnoreCase(name)) {
-                    toBlockNumberNotNull = notNull == 1;
-                }
-                if ("to_block_hash".equalsIgnoreCase(name)) {
-                    toBlockHashNotNull = notNull == 1;
-                }
-            }
-        }
-
-        return !toBlockNumberNotNull || !toBlockHashNotNull;
-    }
-}

SHiNE-server/shine-server-db/src/main/java/shine/db/channels/ChannelNameRules.java

@@ -8,6 +8,8 @@ public final class ChannelNameRules {
     private static final int MAX_DISPLAY_NAME_LENGTH = 32;
     private static final Pattern DISPLAY_ALLOWED_PATTERN =
             Pattern.compile("^[A-Za-z0-9_-]+$");
+    private static final Pattern PUBLIC_CHANNEL_ALLOWED_PATTERN =
+            Pattern.compile("^[A-Za-z0-9_-]+$");
 
     private ChannelNameRules() {}
 
@@ -34,6 +36,14 @@ public final class ChannelNameRules {
         return normalized;
     }
 
+    public static String requireValidPublicDisplayNameForCreate(String rawName) {
+        String normalized = requireValidDisplayNameForCreate(rawName);
+        if (!PUBLIC_CHANNEL_ALLOWED_PATTERN.matcher(normalized).matches()) {
+            throw new IllegalArgumentException("channelName contains unsupported characters");
+        }
+        return normalized;
+    }
+
     public static String toCanonicalSlug(String rawName) {
         String normalized = normalizeDisplayName(rawName);
         if (normalized.isEmpty()) {

SHiNE-server/shine-server-db/src/main/java/shine/db/connection/ConnectionFactory.java

@@ -0,0 +1,9 @@
+package shine.db.connection;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+
+@FunctionalInterface
+public interface ConnectionFactory {
+    Connection getConnection() throws SQLException;
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/connection/DbProvider.java

@@ -0,0 +1,21 @@
+package shine.db.connection;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+
+/**
+ * Нейтральная точка доступа к JDBC-соединениям без привязки к конкретной БД.
+ *
+ * На первом этапе переносов этот интерфейс нужен как новая опора для DAO,
+ * чтобы постепенно убрать прямую зависимость от DbController.
+ */
+public interface DbProvider extends ConnectionFactory, AutoCloseable {
+
+    @Override
+    Connection getConnection() throws SQLException;
+
+    @Override
+    default void close() throws Exception {
+        // По умолчанию ресурсов на уровне provider нет.
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/connection/DriverManagerDbProvider.java

@@ -0,0 +1,58 @@
+package shine.db.connection;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+
+/**
+ * Базовый JDBC provider поверх DriverManager.
+ *
+ * Не знает ничего про конкретный доменный режим БД:
+ * конкретные параметры и post-connect инициализация задаются снаружи.
+ */
+public final class DriverManagerDbProvider implements DbProvider {
+
+    private final String jdbcUrl;
+    private final String user;
+    private final String password;
+    private final ConnectionInitializer initializer;
+
+    public DriverManagerDbProvider(String jdbcUrl,
+                                   String user,
+                                   String password,
+                                   ConnectionInitializer initializer) {
+        if (jdbcUrl == null || jdbcUrl.isBlank()) {
+            throw new IllegalArgumentException("jdbcUrl is blank");
+        }
+        this.jdbcUrl = jdbcUrl;
+        this.user = blankToNull(user);
+        this.password = blankToNull(password);
+        this.initializer = initializer;
+    }
+
+    @Override
+    public Connection getConnection() throws SQLException {
+        Connection connection;
+        if (user == null) {
+            connection = DriverManager.getConnection(jdbcUrl);
+        } else {
+            connection = DriverManager.getConnection(jdbcUrl, user, password == null ? "" : password);
+        }
+
+        if (initializer != null) {
+            initializer.initialize(connection);
+        }
+        return connection;
+    }
+
+    private static String blankToNull(String value) {
+        if (value == null) return null;
+        String trimmed = value.trim();
+        return trimmed.isEmpty() ? null : trimmed;
+    }
+
+    @FunctionalInterface
+    public interface ConnectionInitializer {
+        void initialize(Connection connection) throws SQLException;
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/ActiveSessionsDAO.java

@@ -1,6 +1,6 @@
 package shine.db.dao;
 
-import shine.db.SqliteDbController;
+import shine.db.DbController;
 import shine.db.entities.ActiveSessionEntry;
 
 import java.sql.*;
@@ -17,7 +17,7 @@ import java.util.List;
 public final class ActiveSessionsDAO {
 
     private static volatile ActiveSessionsDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
     private ActiveSessionsDAO() { }
 
@@ -137,7 +137,7 @@ public final class ActiveSessionsDAO {
                 client_platform,
                 user_language
             FROM active_sessions
-            WHERE login = ? COLLATE NOCASE
+            WHERE LOWER(login) = LOWER(?)
             """;
 
         List<ActiveSessionEntry> result = new ArrayList<>();

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/BlockchainResyncCleanupDAO.java

@@ -1,7 +1,7 @@
 package shine.db.dao;
 
 import shine.db.DatabaseInitializer;
-import shine.db.SqliteDbController;
+import shine.db.DbController;
 
 import java.sql.Connection;
 import java.sql.PreparedStatement;
@@ -24,12 +24,12 @@ import java.sql.SQLException;
  *  - эта схема проще и прозрачнее, чем много обратных триггеров по разным таблицам;
  *  - если любой шаг не удался, делаем rollback и БД остаётся в исходном состоянии;
  *  - файловые действия (.bch / .tmp_bch) сознательно НЕ входят в эту транзакцию:
- *    SQLite не может атомарно закоммитить и SQL, и файловую систему сразу;
+ *    SQL-транзакция и файловая система не коммитятся атомарно вместе;
  *    поэтому БД-чистка делается здесь, а файловая чистка будет следующим шагом
  *    отдельным recovery/resync-слоем после успешного commit.
  *
  * Важный смысл текущей реализации:
- *  - мы НЕ трогаем identity-слой (`solana_users`) и НЕ трогаем DM-таблицы;
+ *  - мы НЕ трогаем current users слой (`solana_user_pda_current`) и НЕ трогаем DM-таблицы;
  *  - мы очищаем только блокчейн пользователя и derived-state, который строится из неё;
  *  - висячие cross-chain ссылки в чужих blocks допускаются как нормальное поведение системы.
  */
@@ -39,7 +39,7 @@ public final class BlockchainResyncCleanupDAO {
 
     private static volatile BlockchainResyncCleanupDAO instance;
 
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
     private BlockchainResyncCleanupDAO() {}
 
@@ -99,6 +99,8 @@ public final class BlockchainResyncCleanupDAO {
                 int deletedBlocks = deleteBlocksForChain(c, blockchainName);
                 int deletedBlockchainState = deleteBlockchainStateForChain(c, blockchainName);
 
+                rebuildStatsState(c);
+
                 c.commit();
 
                 return new CleanupResult(
@@ -185,10 +187,10 @@ public final class BlockchainResyncCleanupDAO {
     private int decreaseForeignLikesCount(Connection c, String blockchainName) throws SQLException {
         String sql = """
             UPDATE message_stats
-            SET likes_count = MAX(
+            SET likes_count = GREATEST(
                 0,
-                likes_count - (
+                likes_count - COALESCE((
-                    SELECT COUNT(*)
+                    SELECT COUNT(*)::int
                     FROM reactions_state rs
                     WHERE rs.from_bch_name = ?
                       AND rs.reaction_type = ?
@@ -198,7 +200,7 @@ public final class BlockchainResyncCleanupDAO {
                       AND rs.to_block_number = message_stats.to_block_number
                       AND rs.to_block_hash = message_stats.to_block_hash
                       AND rs.to_bch_name <> ?
-                )
+                ), 0)
             )
             WHERE EXISTS (
                 SELECT 1
@@ -237,10 +239,10 @@ public final class BlockchainResyncCleanupDAO {
     private int decreaseForeignRepliesCount(Connection c, String blockchainName) throws SQLException {
         String sql = """
             UPDATE message_stats
-            SET replies_count = MAX(
+            SET replies_count = GREATEST(
                 0,
                 replies_count - COALESCE((
-                    SELECT COUNT(*)
+                    SELECT COUNT(*)::int
                     FROM blocks b
                     WHERE b.bch_name = ?
                       AND b.msg_type = 1
@@ -307,7 +309,7 @@ public final class BlockchainResyncCleanupDAO {
     private int deleteConnectionsStateForLogin(Connection c, String login) throws SQLException {
         return executeDelete(c, """
             DELETE FROM connections_state
-            WHERE login = ? COLLATE NOCASE
+            WHERE LOWER(login) = LOWER(?)
             """, login);
     }
 
@@ -317,7 +319,7 @@ public final class BlockchainResyncCleanupDAO {
     private int deleteUsersParamsForLogin(Connection c, String login) throws SQLException {
         return executeDelete(c, """
             DELETE FROM users_params
-            WHERE login = ? COLLATE NOCASE
+            WHERE LOWER(login) = LOWER(?)
             """, login);
     }
 
@@ -366,6 +368,119 @@ public final class BlockchainResyncCleanupDAO {
             """, blockchainName);
     }
 
+    private void rebuildStatsState(Connection c) throws SQLException {
+        try (PreparedStatement truncate = c.prepareStatement("""
+            TRUNCATE TABLE user_stats_state, channel_stats_state
+            """)) {
+            truncate.executeUpdate();
+        }
+
+        try (PreparedStatement ps = c.prepareStatement("""
+            INSERT INTO user_stats_state (
+                login,
+                owned_public_channels_count,
+                following_users_count,
+                following_channels_count,
+                close_friends_count,
+                updated_at_ms
+            )
+            SELECT
+                u.login,
+                COALESCE(own.owned_public_channels_count, 0),
+                COALESCE(fu.following_users_count, 0),
+                COALESCE(fc.following_channels_count, 0),
+                COALESCE(cf.close_friends_count, 0),
+                CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+            FROM solana_user_pda_current u
+            LEFT JOIN (
+                SELECT owner_login, COUNT(*)::INTEGER AS owned_public_channels_count
+                FROM channel_names_state
+                WHERE channel_type_code = 1
+                GROUP BY owner_login
+            ) own ON LOWER(own.owner_login) = LOWER(u.login)
+            LEFT JOIN (
+                SELECT login, COUNT(*)::INTEGER AS following_users_count
+                FROM connections_state
+                WHERE rel_type = 30
+                  AND to_block_number = 0
+                GROUP BY login
+            ) fu ON LOWER(fu.login) = LOWER(u.login)
+            LEFT JOIN (
+                SELECT cs.login, COUNT(*)::INTEGER AS following_channels_count
+                FROM connections_state cs
+                JOIN channel_names_state cn
+                  ON cn.owner_bch_name = cs.to_bch_name
+                 AND cn.channel_root_block_number = cs.to_block_number
+                 AND cn.channel_root_block_hash = cs.to_block_hash
+                WHERE cs.rel_type = 30
+                  AND cn.channel_type_code = 1
+                GROUP BY cs.login
+            ) fc ON LOWER(fc.login) = LOWER(u.login)
+            LEFT JOIN (
+                SELECT login, COUNT(*)::INTEGER AS close_friends_count
+                FROM connections_state
+                WHERE rel_type = 10
+                GROUP BY login
+            ) cf ON LOWER(cf.login) = LOWER(u.login)
+            """)) {
+            ps.executeUpdate();
+        }
+
+
+        try (PreparedStatement ps = c.prepareStatement("SELECT shine_refresh_user_profile(login) FROM solana_user_pda_current")) {
+            ps.execute();
+        }
+        try (PreparedStatement ps = c.prepareStatement("SELECT shine_refresh_user_stats(login) FROM solana_user_pda_current")) {
+            ps.execute();
+        }
+        try (PreparedStatement ps = c.prepareStatement("""
+            UPDATE message_stats ms SET
+                primary_likes_count=(SELECT COUNT(*)::INTEGER FROM reactions_state rs WHERE rs.reaction_type=1 AND rs.last_sub_type=1
+                    AND rs.to_login=ms.to_login AND rs.to_bch_name=ms.to_bch_name AND rs.to_block_number=ms.to_block_number AND rs.to_block_hash=ms.to_block_hash
+                    AND shine_is_primary(rs.from_login)),
+                shining_likes_count=(SELECT COUNT(*)::INTEGER FROM reactions_state rs WHERE rs.reaction_type=1 AND rs.last_sub_type=1
+                    AND rs.to_login=ms.to_login AND rs.to_bch_name=ms.to_bch_name AND rs.to_block_number=ms.to_block_number AND rs.to_block_hash=ms.to_block_hash
+                    AND shine_is_primary(rs.from_login) AND shine_is_shining(rs.from_login))
+            """)) {
+            ps.executeUpdate();
+        }
+
+        try (PreparedStatement ps = c.prepareStatement("""
+            INSERT INTO channel_stats_state (
+                owner_bch_name,
+                channel_root_block_number,
+                channel_root_block_hash,
+                owner_login,
+                channel_type_code,
+                subscribers_count,
+                updated_at_ms
+            )
+            SELECT
+                cn.owner_bch_name,
+                cn.channel_root_block_number,
+                cn.channel_root_block_hash,
+                cn.owner_login,
+                cn.channel_type_code,
+                COUNT(DISTINCT cs.login)::INTEGER AS subscribers_count,
+                CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+            FROM channel_names_state cn
+            LEFT JOIN connections_state cs
+              ON cs.rel_type = 30
+             AND cs.to_bch_name = cn.owner_bch_name
+             AND cs.to_block_number = cn.channel_root_block_number
+             AND cs.to_block_hash = cn.channel_root_block_hash
+            WHERE cn.channel_type_code = 1
+            GROUP BY
+                cn.owner_bch_name,
+                cn.channel_root_block_number,
+                cn.channel_root_block_hash,
+                cn.owner_login,
+                cn.channel_type_code
+            """)) {
+            ps.executeUpdate();
+        }
+    }
+
     private int executeDelete(Connection c, String sql, String value) throws SQLException {
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             ps.setString(1, value);

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/BlockchainStateDAO.java

@@ -1,6 +1,6 @@
 package shine.db.dao;
 
-import shine.db.SqliteDbController;
+import shine.db.DbController;
 import shine.db.entities.BlockchainStateEntry;
 
 import java.sql.*;
@@ -10,7 +10,7 @@ import java.util.List;
 public final class BlockchainStateDAO {
 
     private static volatile BlockchainStateDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
     private BlockchainStateDAO() {}
 
@@ -75,7 +75,7 @@ public final class BlockchainStateDAO {
                 last_block_hash,
                 updated_at_ms
             FROM blockchain_state
-            ORDER BY blockchain_name COLLATE NOCASE
+            ORDER BY LOWER(blockchain_name)
             """;
 
         List<BlockchainStateEntry> result = new ArrayList<>();
@@ -142,7 +142,7 @@ public final class BlockchainStateDAO {
      * Строгая вставка state только если записи ещё нет.
      *
      * Нужна для recovery / resync:
-     * - identity пользователя уже может существовать в solana_users;
+     * - runtime-проекция пользователя уже может существовать в current users слое;
      * - в таком случае нам надо восстановить только blockchain_state;
      * - если запись уже есть, метод просто ничего не меняет.
      */
@@ -229,7 +229,7 @@ public final class BlockchainStateDAO {
 
     private static void setBytesNullable(PreparedStatement ps, int index, byte[] b) throws SQLException {
         if (b != null) ps.setBytes(index, b);
-        else ps.setNull(index, Types.BLOB);
+        else ps.setNull(index, Types.BINARY);
     }
 
     private static String nn(String s) { return s == null ? "" : s; }

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/BlocksDAO.java

@@ -2,7 +2,7 @@ package shine.db.dao;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import shine.db.SqliteDbController;
+import shine.db.DbController;
 import shine.db.entities.BlockEntry;
 
 import java.sql.*;
@@ -22,7 +22,7 @@ import java.util.List;
 public final class BlocksDAO {
 
     private static volatile BlocksDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
     private static final Logger log = LoggerFactory.getLogger(BlocksDAO.class);
 
     private BlocksDAO() { }
@@ -90,7 +90,7 @@ public final class BlocksDAO {
             else ps.setNull(i++, Types.INTEGER);
 
             if (e.getToBlockHash() != null) ps.setBytes(i++, e.getToBlockHash());
-            else ps.setNull(i++, Types.BLOB);
+            else ps.setNull(i++, Types.BINARY);
 
             ps.setBytes(i++, e.getBlockHash());
             ps.setBytes(i++, e.getBlockSignature());
@@ -106,7 +106,7 @@ public final class BlocksDAO {
             else ps.setNull(i++, Types.INTEGER);
 
             if (e.getPrevLineHash() != null) ps.setBytes(i++, e.getPrevLineHash());
-            else ps.setNull(i++, Types.BLOB);
+            else ps.setNull(i++, Types.BINARY);
 
             if (e.getThisLineNumber() != null) ps.setInt(i++, e.getThisLineNumber());
             else ps.setNull(i++, Types.INTEGER);

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/ChannelNameStateDAO.java

@@ -1,6 +1,6 @@
 package shine.db.dao;
 
-import shine.db.SqliteDbController;
+import shine.db.DbController;
 import shine.db.entities.ChannelNameStateEntry;
 
 import java.sql.Connection;
@@ -11,7 +11,7 @@ import java.util.List;
 
 public final class ChannelNameStateDAO {
     private static volatile ChannelNameStateDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
     private ChannelNameStateDAO() {}
 
@@ -65,8 +65,12 @@ public final class ChannelNameStateDAO {
                     channel_type_version,
                     channel_root_block_number,
                     channel_root_block_hash,
-                    created_at_ms
+                    created_at_ms,
-                ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                    ava_ar,
+                    ava_sha256,
+                    ava_size,
+                    meta_updated_at_ms
+                ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
                 """;
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             ps.setString(1, entry.getSlug());
@@ -79,6 +83,34 @@ public final class ChannelNameStateDAO {
             ps.setInt(8, entry.getChannelRootBlockNumber());
             ps.setBytes(9, entry.getChannelRootBlockHash());
             ps.setLong(10, entry.getCreatedAtMs());
+            ps.setString(11, entry.getAvaAr() == null ? "" : entry.getAvaAr());
+            ps.setString(12, entry.getAvaSha256() == null ? "" : entry.getAvaSha256());
+            ps.setLong(13, Math.max(0L, entry.getAvaSize()));
+            ps.setLong(14, Math.max(0L, entry.getMetaUpdatedAtMs()));
+            ps.executeUpdate();
+        }
+    }
+
+    public void updateMeta(Connection c, ChannelNameStateEntry entry) throws SQLException {
+        String sql = """
+                UPDATE channel_names_state
+                SET display_name = ?,
+                    channel_description = ?,
+                    ava_ar = ?,
+                    ava_sha256 = ?,
+                    ava_size = ?,
+                    meta_updated_at_ms = ?
+                WHERE owner_bch_name = ? AND channel_root_block_number = ?
+                """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, entry.getDisplayName() == null ? "" : entry.getDisplayName());
+            ps.setString(2, entry.getChannelDescription() == null ? "" : entry.getChannelDescription());
+            ps.setString(3, entry.getAvaAr() == null ? "" : entry.getAvaAr());
+            ps.setString(4, entry.getAvaSha256() == null ? "" : entry.getAvaSha256());
+            ps.setLong(5, Math.max(0L, entry.getAvaSize()));
+            ps.setLong(6, Math.max(0L, entry.getMetaUpdatedAtMs()));
+            ps.setString(7, entry.getOwnerBlockchainName());
+            ps.setInt(8, entry.getChannelRootBlockNumber());
             ps.executeUpdate();
         }
     }

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/ConnectionsStateDAO.java

@@ -1,6 +1,7 @@
 package shine.db.dao;
 
-import shine.db.SqliteDbController;
+import shine.db.DbController;
+import shine.db.sql.CurrentUsersSql;
 
 import java.sql.Connection;
 import java.sql.PreparedStatement;
@@ -13,16 +14,14 @@ import java.util.List;
  * ConnectionsStateDAO — чтение текущего состояния связей из connections_state.
  *
  * ВАЖНО:
- * - login в запросах может быть в любом регистре, поэтому в WHERE используем COLLATE NOCASE
+ * - login в запросах может быть в любом регистре;
- * - в ответах возвращаем логины в каноническом регистре через JOIN на solana_users
+ * - в ответах возвращаем логины в каноническом регистре через прямой lookup
- *
+ *   по актуальным PDA-данным и manual fallback.
- * ПРИМЕЧАНИЕ:
- * Таблица пользователей тут названа "solana_users". Если у тебя иначе — поменяй в SQL.
  */
 public final class ConnectionsStateDAO {
 
     private static volatile ConnectionsStateDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
     private ConnectionsStateDAO() {}
 
@@ -42,14 +41,17 @@ public final class ConnectionsStateDAO {
         String sql = """
             SELECT COALESCE(u_login.login, u_bch.login, cs.to_login) AS friend_login
             FROM connections_state cs
-            LEFT JOIN solana_users u_login
+            LEFT JOIN %s
-              ON u_login.login = cs.to_login COLLATE NOCASE
+              ON LOWER(u_login.login) = LOWER(cs.to_login)
-            LEFT JOIN solana_users u_bch
+            LEFT JOIN %s
-              ON u_bch.blockchain_name = cs.to_bch_name COLLATE NOCASE
+              ON LOWER(u_bch.blockchain_name) = LOWER(cs.to_bch_name)
-            WHERE cs.login = ? COLLATE NOCASE
+            WHERE LOWER(cs.login) = LOWER(?)
               AND cs.rel_type = ?
             ORDER BY friend_login
-            """;
+            """.formatted(
+                CurrentUsersSql.usersSubquery("u_login"),
+                CurrentUsersSql.usersSubquery("u_bch")
+            );
 
         List<String> out = new ArrayList<>();
         try (PreparedStatement ps = c.prepareStatement(sql)) {
@@ -65,6 +67,36 @@ public final class ConnectionsStateDAO {
         return out;
     }
 
+    public boolean hasOutgoingByRelTypeCanonical(Connection c, String loginAnyCase, String peerLoginAnyCase, int relType) throws SQLException {
+        String sql = """
+            SELECT 1
+            FROM connections_state cs
+            LEFT JOIN %s
+              ON LOWER(u_login.login) = LOWER(cs.to_login)
+            LEFT JOIN %s
+              ON LOWER(u_bch.blockchain_name) = LOWER(cs.to_bch_name)
+            WHERE LOWER(cs.login) = LOWER(?)
+              AND cs.rel_type = ?
+              AND (
+                    LOWER(cs.to_login) = LOWER(?)
+                 OR LOWER(COALESCE(u_login.login, u_bch.login, cs.to_login)) = LOWER(?)
+              )
+            LIMIT 1
+            """.formatted(
+                CurrentUsersSql.usersSubquery("u_login"),
+                CurrentUsersSql.usersSubquery("u_bch")
+            );
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, loginAnyCase);
+            ps.setInt(2, relType);
+            ps.setString(3, peerLoginAnyCase);
+            ps.setString(4, peerLoginAnyCase);
+            try (ResultSet rs = ps.executeQuery()) {
+                return rs.next();
+            }
+        }
+    }
+
     /**
      * Incoming: список логинов (канонических), кто поставил relType пользователю login.
      */
@@ -72,17 +104,20 @@ public final class ConnectionsStateDAO {
         String sql = """
             SELECT COALESCE(u_actor.login, cs.login) AS friend_login
             FROM connections_state cs
-            LEFT JOIN solana_users u_actor
+            LEFT JOIN %s
-              ON u_actor.login = cs.login COLLATE NOCASE
+              ON LOWER(u_actor.login) = LOWER(cs.login)
-            LEFT JOIN solana_users u_target
+            LEFT JOIN %s
-              ON u_target.login = ? COLLATE NOCASE
+              ON LOWER(u_target.login) = LOWER(?)
             WHERE (
-                    cs.to_login = ? COLLATE NOCASE
+                    LOWER(cs.to_login) = LOWER(?)
-                    OR (u_target.blockchain_name IS NOT NULL AND cs.to_bch_name = u_target.blockchain_name COLLATE NOCASE)
+                    OR (u_target.blockchain_name IS NOT NULL AND LOWER(cs.to_bch_name) = LOWER(u_target.blockchain_name))
                   )
               AND cs.rel_type = ?
             ORDER BY friend_login
-            """;
+            """.formatted(
+                CurrentUsersSql.usersSubquery("u_actor"),
+                CurrentUsersSql.usersSubquery("u_target")
+            );
 
         List<String> out = new ArrayList<>();
         try (PreparedStatement ps = c.prepareStatement(sql)) {
@@ -106,19 +141,19 @@ public final class ConnectionsStateDAO {
         String sql = """
             SELECT u.login AS friend_login
             FROM connections_state a
-            JOIN solana_users u
+            JOIN %s
-              ON u.login = a.to_login COLLATE NOCASE
+              ON LOWER(u.login) = LOWER(a.to_login)
-            WHERE a.login = ? COLLATE NOCASE
+            WHERE LOWER(a.login) = LOWER(?)
               AND a.rel_type = ?
               AND EXISTS (
                 SELECT 1
                 FROM connections_state b
-                WHERE b.login = a.to_login COLLATE NOCASE
+                WHERE LOWER(b.login) = LOWER(a.to_login)
-                  AND b.to_login = a.login COLLATE NOCASE
+                  AND LOWER(b.to_login) = LOWER(a.login)
                   AND b.rel_type = a.rel_type
               )
             ORDER BY u.login
-            """;
+            """.formatted(CurrentUsersSql.usersSubquery("u"));
 
         List<String> out = new ArrayList<>();
         try (PreparedStatement ps = c.prepareStatement(sql)) {
@@ -141,10 +176,22 @@ public final class ConnectionsStateDAO {
                                String toBchName,
                                Integer toBlockNumber,
                                byte[] toBlockHash) throws SQLException {
+        try (PreparedStatement deletePs = c.prepareStatement("""
+            DELETE FROM connections_state
+            WHERE LOWER(login) = LOWER(?)
+              AND rel_type = ?
+              AND LOWER(to_login) = LOWER(?)
+            """)) {
+            deletePs.setString(1, login);
+            deletePs.setInt(2, relType);
+            deletePs.setString(3, toLogin);
+            deletePs.executeUpdate();
+        }
+
         String sql = """
             INSERT INTO connections_state (login, rel_type, to_login, to_bch_name, to_block_number, to_block_hash)
             VALUES (?, ?, ?, ?, ?, ?)
-            ON CONFLICT(login, rel_type, to_login) DO UPDATE SET
+            ON CONFLICT(login, rel_type, to_login, to_bch_name, to_block_number, to_block_hash) DO UPDATE SET
                 to_bch_name=excluded.to_bch_name,
                 to_block_number=excluded.to_block_number,
                 to_block_hash=excluded.to_block_hash

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/CurrentUsersDAO.java

@@ -1,19 +1,22 @@
 package shine.db.dao;
 
-import shine.db.SqliteDbController;
+import shine.db.DbController;
-import shine.db.entities.SolanaUserEntry;
+import shine.db.KeyEncodingUtil;
+import shine.db.entities.CurrentUserEntry;
+import shine.db.sql.CurrentUsersSql;
 
 import java.sql.*;
 import java.util.ArrayList;
 import java.util.List;
 
 /**
- * SolanaUsersDAO — локальная таблица пользователей из Solana.
+ * CurrentUsersDAO — совместимый runtime-доступ к текущему срезу пользователей.
  *
- * Таблица: solana_users
+ * Источник:
+ *  - solana_user_pda_current
  *
  * Колонки:
- *  - login           TEXT PRIMARY KEY (COLLATE NOCASE)
+ *  - login           TEXT PRIMARY KEY
  *  - blockchain_name TEXT NOT NULL
  *  - solana_key      TEXT NOT NULL
  *  - blockchain_key  TEXT NOT NULL
@@ -23,59 +26,32 @@ import java.util.List;
  *  - методы с Connection НЕ закрывают соединение
  *  - методы без Connection сами открывают и закрывают соединение
  */
-public final class SolanaUsersDAO {
+public final class CurrentUsersDAO {
 
-    private static volatile SolanaUsersDAO instance;
+    private static volatile CurrentUsersDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
-    private SolanaUsersDAO() {}
+    private CurrentUsersDAO() {}
 
-    public static SolanaUsersDAO getInstance() {
+    public static CurrentUsersDAO getInstance() {
         if (instance == null) {
-            synchronized (SolanaUsersDAO.class) {
+            synchronized (CurrentUsersDAO.class) {
-                if (instance == null) instance = new SolanaUsersDAO();
+                if (instance == null) instance = new CurrentUsersDAO();
             }
         }
         return instance;
     }
 
-    // -------------------- INSERT --------------------
-
-    /** Вставка с внешним соединением. Соединение НЕ закрывает. */
-    public void insert(Connection c, SolanaUserEntry user) throws SQLException {
-        String sql = """
-            INSERT INTO solana_users (
-                login, blockchain_name, solana_key, blockchain_key, client_key
-            ) VALUES (?, ?, ?, ?, ?)
-            """;
-
-        try (PreparedStatement ps = c.prepareStatement(sql)) {
-            ps.setString(1, user.getLogin());
-            ps.setString(2, user.getBlockchainName());
-            ps.setString(3, user.getSolanaKey());
-            ps.setString(4, user.getBlockchainKey());
-            ps.setString(5, user.getClientKey());
-            ps.executeUpdate();
-        }
-    }
-
-    /** Вставка без внешнего соединения. Сам открывает/закрывает. */
-    public void insert(SolanaUserEntry user) throws SQLException {
-        try (Connection c = db.getConnection()) {
-            insert(c, user);
-        }
-    }
-
     // -------------------- EXISTS --------------------
 
     /** Проверка существования по login (case-insensitive) с внешним соединением. Соединение НЕ закрывает. */
     public boolean existsByLogin(Connection c, String login) throws SQLException {
         String sql = """
             SELECT 1
-            FROM solana_users
+            FROM %s
-            WHERE LOWER(login) = LOWER(?)
+            WHERE normalized_login = LOWER(BTRIM(?))
             LIMIT 1
-            """;
+            """.formatted(CurrentUsersSql.usersSubquery("su"));
 
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             ps.setString(1, login);
@@ -96,10 +72,10 @@ public final class SolanaUsersDAO {
     public boolean existsByBlockchainName(Connection c, String blockchainName) throws SQLException {
         String sql = """
             SELECT 1
-            FROM solana_users
+            FROM %s
             WHERE blockchain_name = ?
             LIMIT 1
-            """;
+            """.formatted(CurrentUsersSql.usersSubquery("su"));
 
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             ps.setString(1, blockchainName);
@@ -119,7 +95,7 @@ public final class SolanaUsersDAO {
     // -------------------- SELECT --------------------
 
     /** Получить по login (case-insensitive) с внешним соединением. Соединение НЕ закрывает. */
-    public SolanaUserEntry getByLogin(Connection c, String login) throws SQLException {
+    public CurrentUserEntry getByLogin(Connection c, String login) throws SQLException {
         String sql = """
             SELECT
                 login,
@@ -127,9 +103,9 @@ public final class SolanaUsersDAO {
                 solana_key,
                 blockchain_key,
                 client_key
-            FROM solana_users
+            FROM %s
-            WHERE LOWER(login) = LOWER(?)
+            WHERE normalized_login = LOWER(BTRIM(?))
-            """;
+            """.formatted(CurrentUsersSql.usersSubquery("su"));
 
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             ps.setString(1, login);
@@ -141,14 +117,14 @@ public final class SolanaUsersDAO {
     }
 
     /** Получить по login (case-insensitive) без внешнего соединения. Сам открывает/закрывает. */
-    public SolanaUserEntry getByLogin(String login) throws SQLException {
+    public CurrentUserEntry getByLogin(String login) throws SQLException {
         try (Connection c = db.getConnection()) {
             return getByLogin(c, login);
         }
     }
 
     /** Получить по blockchain_name (case-sensitive) с внешним соединением. Соединение НЕ закрывает. */
-    public SolanaUserEntry getByBlockchainName(Connection c, String blockchainName) throws SQLException {
+    public CurrentUserEntry getByBlockchainName(Connection c, String blockchainName) throws SQLException {
         String sql = """
             SELECT
                 login,
@@ -156,9 +132,9 @@ public final class SolanaUsersDAO {
                 solana_key,
                 blockchain_key,
                 client_key
-            FROM solana_users
+            FROM %s
             WHERE blockchain_name = ?
-            """;
+            """.formatted(CurrentUsersSql.usersSubquery("su"));
 
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             ps.setString(1, blockchainName);
@@ -170,14 +146,19 @@ public final class SolanaUsersDAO {
     }
 
     /** Получить по blockchain_name без внешнего соединения. */
-    public SolanaUserEntry getByBlockchainName(String blockchainName) throws SQLException {
+    public CurrentUserEntry getByBlockchainName(String blockchainName) throws SQLException {
         try (Connection c = db.getConnection()) {
             return getByBlockchainName(c, blockchainName);
         }
     }
 
     /** Поиск по префиксу с внешним соединением. Соединение НЕ закрывает. */
-    public List<SolanaUserEntry> searchByLoginPrefix(Connection c, String prefix) throws SQLException {
+    public List<CurrentUserEntry> searchByLoginPrefix(Connection c, String prefix) throws SQLException {
+        return searchByLoginPrefix(c, prefix, null);
+    }
+
+    /** Поиск по префиксу с optional-фильтром server PDA. Соединение НЕ закрывает. */
+    public List<CurrentUserEntry> searchByLoginPrefix(Connection c, String prefix, Boolean isServer) throws SQLException {
         String sql = """
             SELECT
                 login,
@@ -185,16 +166,24 @@ public final class SolanaUsersDAO {
                 solana_key,
                 blockchain_key,
                 client_key
-            FROM solana_users
+            FROM %s
-            WHERE LOWER(login) LIKE ?
+            WHERE normalized_login LIKE LOWER(BTRIM(?))
+              AND (? IS NULL OR is_server = ?)
             ORDER BY login
             LIMIT 5
-            """;
+            """.formatted(CurrentUsersSql.usersSubquery("su"));
 
-        List<SolanaUserEntry> result = new ArrayList<>();
+        List<CurrentUserEntry> result = new ArrayList<>();
 
         try (PreparedStatement ps = c.prepareStatement(sql)) {
-            ps.setString(1, prefix.toLowerCase() + "%");
+            ps.setString(1, prefix.trim() + "%");
+            if (isServer == null) {
+                ps.setNull(2, Types.BOOLEAN);
+                ps.setNull(3, Types.BOOLEAN);
+            } else {
+                ps.setBoolean(2, isServer);
+                ps.setBoolean(3, isServer);
+            }
             try (ResultSet rs = ps.executeQuery()) {
                 while (rs.next()) result.add(mapRow(rs));
             }
@@ -204,23 +193,28 @@ public final class SolanaUsersDAO {
     }
 
     /** Поиск по префиксу без внешнего соединения. Сам открывает/закрывает. */
-    public List<SolanaUserEntry> searchByLoginPrefix(String prefix) throws SQLException {
+    public List<CurrentUserEntry> searchByLoginPrefix(String prefix) throws SQLException {
+        return searchByLoginPrefix(prefix, null);
+    }
+
+    /** Поиск по префиксу без внешнего соединения с optional-фильтром server PDA. */
+    public List<CurrentUserEntry> searchByLoginPrefix(String prefix, Boolean isServer) throws SQLException {
         try (Connection c = db.getConnection()) {
-            return searchByLoginPrefix(c, prefix);
+            return searchByLoginPrefix(c, prefix, isServer);
         }
     }
 
     // -------------------- MAPPER --------------------
 
-    private SolanaUserEntry mapRow(ResultSet rs) throws SQLException {
+    private CurrentUserEntry mapRow(ResultSet rs) throws SQLException {
-        SolanaUserEntry e = new SolanaUserEntry();
+        CurrentUserEntry e = new CurrentUserEntry();
 
         e.setLogin(rs.getString("login"));
         e.setBlockchainName(rs.getString("blockchain_name"));
-        e.setSolanaKey(rs.getString("solana_key"));
+        e.setSolanaKey(KeyEncodingUtil.normalizeKeyToBase64_32(rs.getString("solana_key")));
-        e.setBlockchainKey(rs.getString("blockchain_key"));
+        e.setBlockchainKey(KeyEncodingUtil.normalizeKeyToBase64_32(rs.getString("blockchain_key")));
-        e.setClientKey(rs.getString("client_key"));
+        e.setClientKey(KeyEncodingUtil.normalizeKeyToBase64_32(rs.getString("client_key")));
 
         return e;
     }
-}
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/DirectMessagesDAO.java

@@ -1,53 +0,0 @@
-package shine.db.dao;
-
-import shine.db.SqliteDbController;
-import shine.db.entities.DirectMessageEntry;
-
-import java.sql.Connection;
-import java.sql.PreparedStatement;
-
-public final class DirectMessagesDAO {
-    private static volatile DirectMessagesDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
-
-    private DirectMessagesDAO() {}
-
-    public static DirectMessagesDAO getInstance() {
-        if (instance == null) {
-            synchronized (DirectMessagesDAO.class) {
-                if (instance == null) instance = new DirectMessagesDAO();
-            }
-        }
-        return instance;
-    }
-
-    public void insert(DirectMessageEntry entry) throws Exception {
-        try (Connection c = db.getConnection()) {
-            String sql = """
-                INSERT INTO direct_messages (
-                    message_id, from_login, to_login, text, created_at_ms
-                ) VALUES (?, ?, ?, ?, ?)
-                """;
-            try (PreparedStatement ps = c.prepareStatement(sql)) {
-                ps.setString(1, entry.getMessageId());
-                ps.setString(2, entry.getFromLogin());
-                ps.setString(3, entry.getToLogin());
-                ps.setString(4, entry.getText());
-                ps.setLong(5, entry.getCreatedAtMs());
-                ps.executeUpdate();
-            }
-        }
-    }
-
-    public boolean existsFromTo(String fromLogin, String toLogin) throws Exception {
-        try (Connection c = db.getConnection()) {
-            String sql = "SELECT 1 FROM direct_messages WHERE from_login = ? AND to_login = ? LIMIT 1";
-            try (PreparedStatement ps = c.prepareStatement(sql)) {
-                ps.setString(1, fromLogin);
-                ps.setString(2, toLogin);
-                return ps.executeQuery().next();
-            }
-        }
-    }
-
-}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/DmDeliveryStateDAO.java

@@ -0,0 +1,518 @@
+package shine.db.dao;
+
+import shine.db.DbController;
+import shine.db.entities.DmDeliveryStateEntry;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Types;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/** Хранилище изменяемого состояния межсерверной доставки DM-пары. */
+public final class DmDeliveryStateDAO {
+    private static volatile DmDeliveryStateDAO instance;
+    private final DbController db = DbController.getInstance();
+
+    private DmDeliveryStateDAO() {}
+
+    public static DmDeliveryStateDAO getInstance() {
+        if (instance == null) {
+            synchronized (DmDeliveryStateDAO.class) {
+                if (instance == null) instance = new DmDeliveryStateDAO();
+            }
+        }
+        return instance;
+    }
+
+    public DmDeliveryStateEntry upsertPair(
+            String outgoingMessageKey,
+            String eventId,
+            String baseKey,
+            String fromLogin,
+            String toLogin,
+            String incomingMessageKey,
+            long createdAtMs,
+            long expiresAtMs,
+            int initialState,
+            String deliveredServerLogin,
+            String routesHash,
+            boolean assistImmediately
+    ) throws SQLException {
+        long now = System.currentTimeMillis();
+        int safeState = normalizeState(initialState, deliveredServerLogin);
+        if (expiresAtMs <= now && safeState == DmDeliveryStateEntry.PENDING_NONE) {
+            safeState = DmDeliveryStateEntry.FAILED_FINAL;
+        }
+        Long nextAttemptAt = safeState == DmDeliveryStateEntry.ACCEPTED
+                ? now
+                : null;
+        String safeDeliveredLogin = safeState == DmDeliveryStateEntry.DELIVERED_ONE
+                ? normalize(deliveredServerLogin)
+                : null;
+
+        try (Connection c = db.getConnection()) {
+            String sql = """
+                INSERT INTO dm_delivery_state (
+                    outgoing_message_key, event_id, base_key, from_login, to_login,
+                    incoming_message_key, created_at_ms, delivery_expires_at_ms,
+                    delivery_state, delivered_server_login, recipient_routes_hash,
+                    attempt_index, next_attempt_at_ms, last_attempt_at_ms, last_error, updated_at_ms
+                ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 0, ?, NULL, NULL, ?)
+                ON CONFLICT (outgoing_message_key) DO UPDATE SET
+                    event_id = EXCLUDED.event_id,
+                    base_key = EXCLUDED.base_key,
+                    from_login = EXCLUDED.from_login,
+                    to_login = EXCLUDED.to_login,
+                    incoming_message_key = EXCLUDED.incoming_message_key,
+                    created_at_ms = CASE
+                        WHEN dm_delivery_state.event_id = EXCLUDED.event_id THEN dm_delivery_state.created_at_ms
+                        ELSE EXCLUDED.created_at_ms
+                    END,
+                    delivery_expires_at_ms = CASE
+                        WHEN dm_delivery_state.event_id = EXCLUDED.event_id THEN dm_delivery_state.delivery_expires_at_ms
+                        ELSE EXCLUDED.delivery_expires_at_ms
+                    END,
+                    delivery_state = CASE
+                        WHEN dm_delivery_state.event_id = EXCLUDED.event_id THEN dm_delivery_state.delivery_state
+                        ELSE EXCLUDED.delivery_state
+                    END,
+                    delivered_server_login = CASE
+                        WHEN dm_delivery_state.event_id = EXCLUDED.event_id THEN dm_delivery_state.delivered_server_login
+                        ELSE EXCLUDED.delivered_server_login
+                    END,
+                    recipient_routes_hash = CASE
+                        WHEN dm_delivery_state.event_id = EXCLUDED.event_id THEN COALESCE(dm_delivery_state.recipient_routes_hash, EXCLUDED.recipient_routes_hash)
+                        ELSE EXCLUDED.recipient_routes_hash
+                    END,
+                    attempt_index = CASE
+                        WHEN dm_delivery_state.event_id = EXCLUDED.event_id THEN dm_delivery_state.attempt_index
+                        ELSE 0
+                    END,
+                    next_attempt_at_ms = CASE
+                        WHEN dm_delivery_state.event_id = EXCLUDED.event_id THEN dm_delivery_state.next_attempt_at_ms
+                        ELSE EXCLUDED.next_attempt_at_ms
+                    END,
+                    last_attempt_at_ms = CASE
+                        WHEN dm_delivery_state.event_id = EXCLUDED.event_id THEN dm_delivery_state.last_attempt_at_ms
+                        ELSE NULL
+                    END,
+                    last_error = CASE
+                        WHEN dm_delivery_state.event_id = EXCLUDED.event_id THEN dm_delivery_state.last_error
+                        ELSE NULL
+                    END,
+                    updated_at_ms = EXCLUDED.updated_at_ms
+                """;
+            try (PreparedStatement ps = c.prepareStatement(sql)) {
+                ps.setString(1, outgoingMessageKey);
+                ps.setString(2, eventId);
+                ps.setString(3, baseKey);
+                ps.setString(4, normalize(fromLogin));
+                ps.setString(5, normalize(toLogin));
+                ps.setString(6, incomingMessageKey);
+                ps.setLong(7, createdAtMs);
+                ps.setLong(8, expiresAtMs);
+                ps.setInt(9, safeState);
+                setNullableString(ps, 10, safeDeliveredLogin);
+                setNullableString(ps, 11, normalizeBlank(routesHash));
+                setNullableLong(ps, 12, nextAttemptAt);
+                ps.setLong(13, now);
+                ps.executeUpdate();
+            }
+        }
+        DmDeliveryStateEntry result;
+        if (initialState != DmDeliveryStateEntry.PENDING_NONE || !isBlank(deliveredServerLogin)) {
+            result = mergeRemote(eventId, initialState, deliveredServerLogin, routesHash, now);
+        } else {
+            result = getByEventId(eventId);
+        }
+        if (result != null && result.getDeliveryExpiresAtMs() <= now
+                && result.getDeliveryState() == DmDeliveryStateEntry.PENDING_NONE) {
+            return finishAtExpiry(eventId, now);
+        }
+        return result;
+    }
+
+    public DmDeliveryStateEntry getByEventId(String eventId) throws SQLException {
+        if (isBlank(eventId)) return null;
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement(selectColumns() + " WHERE event_id = ?")) {
+            ps.setString(1, eventId.trim());
+            try (ResultSet rs = ps.executeQuery()) {
+                return rs.next() ? mapRow(rs) : null;
+            }
+        }
+    }
+
+    public DmDeliveryStateEntry getByOutgoingMessageKey(String outgoingMessageKey) throws SQLException {
+        if (isBlank(outgoingMessageKey)) return null;
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement(selectColumns() + " WHERE outgoing_message_key = ?")) {
+            ps.setString(1, outgoingMessageKey.trim());
+            try (ResultSet rs = ps.executeQuery()) {
+                return rs.next() ? mapRow(rs) : null;
+            }
+        }
+    }
+
+    public Map<String, DmDeliveryStateEntry> listByOutgoingMessageKeys(List<String> keys) throws SQLException {
+        Map<String, DmDeliveryStateEntry> out = new HashMap<>();
+        if (keys == null || keys.isEmpty()) return out;
+        String placeholders = String.join(",", java.util.Collections.nCopies(keys.size(), "?"));
+        String sql = selectColumns() + " WHERE outgoing_message_key IN (" + placeholders + ")";
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            for (int i = 0; i < keys.size(); i++) ps.setString(i + 1, keys.get(i));
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) {
+                    DmDeliveryStateEntry row = mapRow(rs);
+                    out.put(row.getOutgoingMessageKey(), row);
+                }
+            }
+        }
+        return out;
+    }
+
+    public List<DmDeliveryStateEntry> listDue(long nowMs, int limit) throws SQLException {
+        String sql = selectColumns() + """
+             WHERE delivery_state = 0
+               AND next_attempt_at_ms IS NOT NULL
+               AND next_attempt_at_ms <= ?
+             ORDER BY next_attempt_at_ms ASC, created_at_ms ASC
+             LIMIT ?
+            """;
+        List<DmDeliveryStateEntry> out = new ArrayList<>();
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setLong(1, nowMs);
+            ps.setInt(2, Math.max(1, limit));
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) out.add(mapRow(rs));
+            }
+        }
+        return out;
+    }
+
+    public boolean claimAttempt(DmDeliveryStateEntry row, long nowMs, Long nextAttemptAtMs) throws SQLException {
+        String sql = """
+            UPDATE dm_delivery_state
+            SET attempt_index = attempt_index + 1,
+                next_attempt_at_ms = ?,
+                last_attempt_at_ms = ?,
+                last_error = NULL,
+                updated_at_ms = ?
+            WHERE outgoing_message_key = ?
+              AND event_id = ?
+              AND attempt_index = ?
+              AND delivery_state = 0
+              AND next_attempt_at_ms IS NOT NULL
+              AND next_attempt_at_ms <= ?
+            """;
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            long networkLeaseUntilMs = nowMs + 60_000L;
+            Long claimedNextAttemptAtMs = nextAttemptAtMs == null
+                    ? networkLeaseUntilMs
+                    : Math.max(nextAttemptAtMs, networkLeaseUntilMs);
+            setNullableLong(ps, 1, claimedNextAttemptAtMs);
+            ps.setLong(2, nowMs);
+            ps.setLong(3, nowMs);
+            ps.setString(4, row.getOutgoingMessageKey());
+            ps.setString(5, row.getEventId());
+            ps.setInt(6, row.getAttemptIndex());
+            ps.setLong(7, nowMs);
+            return ps.executeUpdate() == 1;
+        }
+    }
+
+    public DmDeliveryStateEntry mergeRemote(
+            String eventId,
+            int remoteState,
+            String remoteDeliveredLogin,
+            String remoteRoutesHash,
+            long nowMs
+    ) throws SQLException {
+        try (Connection c = db.getConnection()) {
+            boolean previousAutoCommit = c.getAutoCommit();
+            c.setAutoCommit(false);
+            try {
+                DmDeliveryStateEntry current = getByEventIdForUpdate(c, eventId);
+                if (current == null) {
+                    c.rollback();
+                    return null;
+                }
+                MergeResult merged = merge(
+                        current.getDeliveryState(),
+                        current.getDeliveredServerLogin(),
+                        current.getRecipientRoutesHash(),
+                        remoteState,
+                        remoteDeliveredLogin,
+                        remoteRoutesHash
+                );
+                updateMutableState(c, current, merged.state(), merged.deliveredLogin(),
+                        merged.routesHash(), current.getNextAttemptAtMs(), current.getLastError(), nowMs);
+                c.commit();
+                return getByEventId(eventId);
+            } catch (Exception e) {
+                try { c.rollback(); } catch (Exception ignored) {}
+                throw e;
+            } finally {
+                c.setAutoCommit(previousAutoCommit);
+            }
+        }
+    }
+
+    public DmDeliveryStateEntry updateAfterAttempt(
+            String eventId,
+            int attemptedState,
+            String deliveredServerLogin,
+            String routesHash,
+            Long nextAttemptAtMs,
+            String lastError,
+            long nowMs
+    ) throws SQLException {
+        try (Connection c = db.getConnection()) {
+            boolean previousAutoCommit = c.getAutoCommit();
+            c.setAutoCommit(false);
+            try {
+                DmDeliveryStateEntry current = getByEventIdForUpdate(c, eventId);
+                if (current == null) {
+                    c.rollback();
+                    return null;
+                }
+                MergeResult merged = merge(
+                        current.getDeliveryState(), current.getDeliveredServerLogin(), current.getRecipientRoutesHash(),
+                        attemptedState, deliveredServerLogin, routesHash
+                );
+                Long effectiveNext = merged.state() == DmDeliveryStateEntry.ACCEPTED
+                        ? nextAttemptAtMs
+                        : null;
+                updateMutableState(c, current, merged.state(), merged.deliveredLogin(),
+                        merged.routesHash(), effectiveNext, lastError, nowMs);
+                c.commit();
+                return getByEventId(eventId);
+            } catch (Exception e) {
+                try { c.rollback(); } catch (Exception ignored) {}
+                throw e;
+            } finally {
+                c.setAutoCommit(previousAutoCommit);
+            }
+        }
+    }
+
+    public DmDeliveryStateEntry finishAtExpiry(String eventId, long nowMs) throws SQLException {
+        try (Connection c = db.getConnection()) {
+            String sql = """
+                UPDATE dm_delivery_state
+                SET delivery_state = CASE WHEN delivery_state = 0 THEN 3 ELSE delivery_state END,
+                    delivered_server_login = CASE WHEN delivery_state = 0 THEN NULL ELSE delivered_server_login END,
+                    next_attempt_at_ms = NULL,
+                    last_error = CASE WHEN delivery_state = 0 THEN 'DELIVERY_EXPIRED' ELSE last_error END,
+                    updated_at_ms = ?
+                WHERE event_id = ? AND delivery_state = 0
+                """;
+            try (PreparedStatement ps = c.prepareStatement(sql)) {
+                ps.setLong(1, nowMs);
+                ps.setString(2, eventId);
+                ps.executeUpdate();
+            }
+        }
+        return getByEventId(eventId);
+    }
+
+    /** Read-only peer confirmed that at least one recipient server accepted the message. */
+    public DmDeliveryStateEntry markDeliveredFromPeer(String eventId, long nowMs) throws SQLException {
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("""
+                 UPDATE dm_delivery_state
+                 SET delivery_state = 1,
+                     delivered_server_login = NULL,
+                     next_attempt_at_ms = NULL,
+                     last_error = NULL,
+                     updated_at_ms = ?
+                 WHERE event_id = ? AND delivery_state = 0
+                 """)) {
+            ps.setLong(1, nowMs);
+            ps.setString(2, eventId);
+            ps.executeUpdate();
+        }
+        return getByEventId(eventId);
+    }
+
+    public int removeByBaseKey(String baseKey) throws SQLException {
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("DELETE FROM dm_delivery_state WHERE base_key = ?")) {
+            ps.setString(1, baseKey);
+            return ps.executeUpdate();
+        }
+    }
+
+    public int removeConversationBefore(String fromLogin, String toLogin, long boundaryTimeMs) throws SQLException {
+        String sql = """
+            DELETE FROM dm_delivery_state
+            WHERE created_at_ms < ?
+              AND ((LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                OR (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?)))
+            """;
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setLong(1, boundaryTimeMs);
+            ps.setString(2, fromLogin);
+            ps.setString(3, toLogin);
+            ps.setString(4, toLogin);
+            ps.setString(5, fromLogin);
+            return ps.executeUpdate();
+        }
+    }
+
+    public int removeMissingMessages() throws SQLException {
+        String sql = """
+            DELETE FROM dm_delivery_state d
+            WHERE NOT EXISTS (
+                SELECT 1 FROM signed_messages m WHERE m.message_key = d.outgoing_message_key
+            )
+            """;
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            return ps.executeUpdate();
+        }
+    }
+
+    private DmDeliveryStateEntry getByEventIdForUpdate(Connection c, String eventId) throws SQLException {
+        try (PreparedStatement ps = c.prepareStatement(selectColumns() + " WHERE event_id = ? FOR UPDATE")) {
+            ps.setString(1, eventId);
+            try (ResultSet rs = ps.executeQuery()) {
+                return rs.next() ? mapRow(rs) : null;
+            }
+        }
+    }
+
+    private void updateMutableState(
+            Connection c,
+            DmDeliveryStateEntry current,
+            int state,
+            String deliveredLogin,
+            String routesHash,
+            Long nextAttemptAtMs,
+            String lastError,
+            long nowMs
+    ) throws SQLException {
+        String sql = """
+            UPDATE dm_delivery_state
+            SET delivery_state = ?,
+                delivered_server_login = ?,
+                recipient_routes_hash = ?,
+                next_attempt_at_ms = ?,
+                last_error = ?,
+                updated_at_ms = ?
+            WHERE outgoing_message_key = ? AND event_id = ?
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setInt(1, state);
+            setNullableString(ps, 2, state == DmDeliveryStateEntry.DELIVERED_ONE ? normalize(deliveredLogin) : null);
+            setNullableString(ps, 3, normalizeBlank(routesHash));
+            setNullableLong(ps, 4, nextAttemptAtMs);
+            setNullableString(ps, 5, normalizeBlank(lastError));
+            ps.setLong(6, nowMs);
+            ps.setString(7, current.getOutgoingMessageKey());
+            ps.setString(8, current.getEventId());
+            ps.executeUpdate();
+        }
+    }
+
+    private MergeResult merge(
+            int localState,
+            String localLogin,
+            String localHash,
+            int remoteStateRaw,
+            String remoteLoginRaw,
+            String remoteHashRaw
+    ) {
+        int remoteState = normalizeState(remoteStateRaw, remoteLoginRaw);
+        String remoteLogin = normalize(remoteLoginRaw);
+        String localNormalizedLogin = normalize(localLogin);
+        String localRoutesHash = normalizeBlank(localHash);
+        String remoteRoutesHash = normalizeBlank(remoteHashRaw);
+        String resultHash = remoteRoutesHash != null ? remoteRoutesHash : localRoutesHash;
+
+        if (localState == DmDeliveryStateEntry.DELIVERED_ONE || localState == DmDeliveryStateEntry.DELIVERED_ALL) {
+            return new MergeResult(DmDeliveryStateEntry.DELIVERED, localNormalizedLogin,
+                    localRoutesHash != null ? localRoutesHash : remoteRoutesHash);
+        }
+        if (remoteState == DmDeliveryStateEntry.DELIVERED_ONE || remoteState == DmDeliveryStateEntry.DELIVERED_ALL) {
+            return new MergeResult(DmDeliveryStateEntry.DELIVERED, remoteLogin, resultHash);
+        }
+        if (localState == DmDeliveryStateEntry.FAILED_FINAL || remoteState == DmDeliveryStateEntry.FAILED_FINAL) {
+            return new MergeResult(DmDeliveryStateEntry.FAILED_FINAL, null, resultHash);
+        }
+        return new MergeResult(DmDeliveryStateEntry.PENDING_NONE, null, resultHash);
+    }
+
+    private int normalizeState(int state, String deliveredLogin) {
+        if (state < DmDeliveryStateEntry.PENDING_NONE || state > DmDeliveryStateEntry.FAILED_FINAL) {
+            return DmDeliveryStateEntry.PENDING_NONE;
+        }
+        if (state == DmDeliveryStateEntry.DELIVERED_ALL) return DmDeliveryStateEntry.DELIVERED;
+        return state;
+    }
+
+    private String selectColumns() {
+        return """
+            SELECT outgoing_message_key, event_id, base_key, from_login, to_login,
+                   incoming_message_key, created_at_ms, delivery_expires_at_ms,
+                   delivery_state, delivered_server_login, recipient_routes_hash,
+                   attempt_index, next_attempt_at_ms, last_attempt_at_ms, last_error, updated_at_ms
+            FROM dm_delivery_state
+            """;
+    }
+
+    private DmDeliveryStateEntry mapRow(ResultSet rs) throws SQLException {
+        DmDeliveryStateEntry e = new DmDeliveryStateEntry();
+        e.setOutgoingMessageKey(rs.getString("outgoing_message_key"));
+        e.setEventId(rs.getString("event_id"));
+        e.setBaseKey(rs.getString("base_key"));
+        e.setFromLogin(rs.getString("from_login"));
+        e.setToLogin(rs.getString("to_login"));
+        e.setIncomingMessageKey(rs.getString("incoming_message_key"));
+        e.setCreatedAtMs(rs.getLong("created_at_ms"));
+        e.setDeliveryExpiresAtMs(rs.getLong("delivery_expires_at_ms"));
+        e.setDeliveryState(rs.getInt("delivery_state"));
+        e.setDeliveredServerLogin(rs.getString("delivered_server_login"));
+        e.setRecipientRoutesHash(rs.getString("recipient_routes_hash"));
+        e.setAttemptIndex(rs.getInt("attempt_index"));
+        long next = rs.getLong("next_attempt_at_ms");
+        e.setNextAttemptAtMs(rs.wasNull() ? null : next);
+        long last = rs.getLong("last_attempt_at_ms");
+        e.setLastAttemptAtMs(rs.wasNull() ? null : last);
+        e.setLastError(rs.getString("last_error"));
+        e.setUpdatedAtMs(rs.getLong("updated_at_ms"));
+        return e;
+    }
+
+    private static void setNullableString(PreparedStatement ps, int index, String value) throws SQLException {
+        if (isBlank(value)) ps.setNull(index, Types.VARCHAR);
+        else ps.setString(index, value.trim());
+    }
+
+    private static void setNullableLong(PreparedStatement ps, int index, Long value) throws SQLException {
+        if (value == null) ps.setNull(index, Types.BIGINT);
+        else ps.setLong(index, value);
+    }
+
+    private static String normalize(String value) {
+        if (value == null) return null;
+        String normalized = value.trim().toLowerCase();
+        return normalized.isEmpty() ? null : normalized;
+    }
+
+    private static String normalizeBlank(String value) {
+        if (value == null) return null;
+        String normalized = value.trim();
+        return normalized.isEmpty() ? null : normalized;
+    }
+
+    private static boolean isBlank(String value) {
+        return value == null || value.isBlank();
+    }
+
+    private record MergeResult(int state, String deliveredLogin, String routesHash) {}
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/DmDialogStateDAO.java

@@ -0,0 +1,464 @@
+package shine.db.dao;
+
+import shine.db.MsgSubType;
+import shine.db.entities.SignedMessageEntry;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.Base64;
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+
+public final class DmDialogStateDAO {
+    private static volatile DmDialogStateDAO instance;
+
+    private DmDialogStateDAO() {}
+
+    public static DmDialogStateDAO getInstance() {
+        if (instance == null) {
+            synchronized (DmDialogStateDAO.class) {
+                if (instance == null) instance = new DmDialogStateDAO();
+            }
+        }
+        return instance;
+    }
+
+    public void bootstrapIfEmpty(Connection c) throws SQLException {
+        if (c == null) return;
+        if (hasAnyRow(c)) return;
+
+        boolean prevAutoCommit = c.getAutoCommit();
+        c.setAutoCommit(false);
+        try {
+            for (PairItem pair : listConversationPairs(c)) {
+                refreshConversationPair(c, pair.ownerLogin(), pair.peerLogin());
+            }
+            c.commit();
+        } catch (Exception e) {
+            try { c.rollback(); } catch (Exception ignored) {}
+            if (e instanceof SQLException sqlEx) throw sqlEx;
+            throw new SQLException("Failed to bootstrap dm_dialog_state", e);
+        } finally {
+            c.setAutoCommit(prevAutoCommit);
+        }
+    }
+
+    public void refreshConversationPair(Connection c, String ownerLogin, String peerLogin) throws SQLException {
+        String cleanOwner = normalize(ownerLogin);
+        String cleanPeer = normalize(peerLogin);
+        if (cleanOwner.isEmpty() || cleanPeer.isEmpty()) return;
+        if (cleanOwner.equalsIgnoreCase(cleanPeer)) return;
+        refreshConversation(c, cleanOwner, cleanPeer);
+        refreshConversation(c, cleanPeer, cleanOwner);
+    }
+
+    public List<DialogSummary> listInboxDialogs(Connection c, String ownerLogin) throws SQLException {
+        String cleanOwner = normalize(ownerLogin);
+        if (cleanOwner.isEmpty()) return List.of();
+
+        Map<String, DialogSummary> byPeer = new LinkedHashMap<>();
+        List<String> contacts = ConnectionsStateDAO.getInstance().listOutgoingByRelTypeCanonical(c, cleanOwner, MsgSubType.CONNECTION_CONTACT);
+        List<String> friends = ConnectionsStateDAO.getInstance().listOutgoingByRelTypeCanonical(c, cleanOwner, MsgSubType.CONNECTION_FRIEND);
+        List<String> closeFriends = ConnectionsStateDAO.getInstance().listOutgoingByRelTypeCanonical(c, cleanOwner, MsgSubType.CONNECTION_CLOSE_FRIEND);
+
+        try (PreparedStatement ps = c.prepareStatement("""
+            SELECT owner_login, peer_login, relation_flag, last_message_blob_b64,
+                   last_message_time_ms, unread_count, last_read_receipt_time_ms,
+                   updated_at_ms
+            FROM dm_dialog_state
+            WHERE LOWER(owner_login) = LOWER(?)
+            """)) {
+            ps.setString(1, cleanOwner);
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) {
+                    long lastMessageTimeMs = rs.getLong("last_message_time_ms");
+                    int unreadCount = rs.getInt("unread_count");
+                    DialogSummary row = new DialogSummary(
+                            rs.getString("owner_login"),
+                            rs.getString("peer_login"),
+                            normalizeRelationFlag(rs.getString("relation_flag")),
+                            rs.getString("last_message_blob_b64"),
+                            lastMessageTimeMs,
+                            unreadCount,
+                            rs.getLong("last_read_receipt_time_ms"),
+                            rs.getLong("updated_at_ms"),
+                            lastMessageTimeMs > 0 || unreadCount > 0
+                    );
+                    byPeer.put(normKey(row.peerLogin()), row);
+                }
+            }
+        }
+
+        for (String peer : contacts) {
+            addOrUpdateSummary(byPeer, cleanOwner, peer, "contact", false);
+        }
+        for (String peer : friends) {
+            addOrUpdateSummary(byPeer, cleanOwner, peer, "friend", false);
+        }
+        for (String peer : closeFriends) {
+            addOrUpdateSummary(byPeer, cleanOwner, peer, "close_friend", false);
+        }
+
+        for (DialogSummary row : new ArrayList<>(byPeer.values())) {
+            String relationFlag = resolveRelationFlag(c, cleanOwner, row.peerLogin());
+            byPeer.put(normKey(row.peerLogin()), new DialogSummary(
+                    row.ownerLogin(),
+                    row.peerLogin(),
+                    relationFlag,
+                    row.lastMessageBlobB64(),
+                    row.lastMessageTimeMs(),
+                    row.unreadCount(),
+                    row.lastReadReceiptTimeMs(),
+                    row.updatedAtMs(),
+                    row.hasDialog()
+            ));
+        }
+
+        List<DialogSummary> out = new ArrayList<>(byPeer.values());
+        out.sort((a, b) -> {
+            int cmp = Long.compare(b.lastMessageTimeMs(), a.lastMessageTimeMs());
+            if (cmp != 0) return cmp;
+            return normalize(a.peerLogin()).compareToIgnoreCase(normalize(b.peerLogin()));
+        });
+        return out;
+    }
+
+    public void refreshFromEntry(Connection c, SignedMessageEntry entry) throws SQLException {
+        if (entry == null) return;
+        refreshConversationPair(c, entry.getFromLogin(), entry.getToLogin());
+    }
+
+    private void refreshConversation(Connection c, String ownerLogin, String peerLogin) throws SQLException {
+        DialogSummary summary = loadConversationSummary(c, ownerLogin, peerLogin);
+        upsert(c, summary);
+        if (summary.lastReadReceiptTimeMs() > 0) {
+            syncMessagesToWatermark(c, summary.ownerLogin(), summary.peerLogin(), summary.lastReadReceiptTimeMs());
+        }
+    }
+
+    private DialogSummary loadConversationSummary(Connection c, String ownerLogin, String peerLogin) throws SQLException {
+        String cleanOwner = normalize(ownerLogin);
+        String cleanPeer = normalize(peerLogin);
+        if (cleanOwner.isEmpty() || cleanPeer.isEmpty() || cleanOwner.equalsIgnoreCase(cleanPeer)) {
+            return new DialogSummary(cleanOwner, cleanPeer, "none", "", 0L, 0, 0L, System.currentTimeMillis(), false);
+        }
+
+        String relationFlag = resolveRelationFlag(c, cleanOwner, cleanPeer);
+        long existingWatermark = loadExistingWatermark(c, cleanOwner, cleanPeer);
+
+        String latestSql = """
+            SELECT raw_block, time_ms
+            FROM signed_messages
+            WHERE (
+                    (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                 OR (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                  )
+              AND message_type IN (1, 2)
+            ORDER BY time_ms DESC, revision_time_ms DESC, reencrypted_at_ms DESC, created_at_ms DESC, message_key DESC
+            LIMIT 1
+            """;
+        String unreadSql = """
+            SELECT COUNT(*)
+            FROM signed_messages
+            WHERE LOWER(from_login) = LOWER(?)
+              AND LOWER(to_login) = LOWER(?)
+              AND message_type = 1
+              AND time_ms > ?
+              AND (read_at_ms IS NULL OR read_at_ms <= 0)
+            """;
+        String contentReadSql = """
+            SELECT MAX(read_at_ms)
+            FROM signed_messages
+            WHERE (
+                    (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                 OR (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                  )
+              AND message_type IN (1, 2)
+              AND read_at_ms IS NOT NULL
+              AND read_at_ms > 0
+            """;
+        String receiptWatermarkSql = """
+            SELECT MAX(time_ms)
+            FROM signed_messages
+            WHERE (
+                    (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                 OR (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                  )
+              AND message_type IN (3, 4)
+            """;
+
+        String lastMessageBlobB64 = "";
+        long lastMessageTimeMs = 0L;
+        int unreadCount = 0;
+        long lastReadReceiptTimeMs = existingWatermark;
+
+        try (PreparedStatement ps = c.prepareStatement(latestSql)) {
+            ps.setString(1, cleanOwner);
+            ps.setString(2, cleanPeer);
+            ps.setString(3, cleanPeer);
+            ps.setString(4, cleanOwner);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (rs.next()) {
+                    lastMessageTimeMs = rs.getLong("time_ms");
+                    byte[] rawBlock = rs.getBytes("raw_block");
+                    if (rawBlock != null && rawBlock.length > 0) {
+                        lastMessageBlobB64 = Base64.getEncoder().encodeToString(rawBlock);
+                    }
+                }
+            }
+        }
+
+        try (PreparedStatement ps = c.prepareStatement(contentReadSql)) {
+            ps.setString(1, cleanOwner);
+            ps.setString(2, cleanPeer);
+            ps.setString(3, cleanPeer);
+            ps.setString(4, cleanOwner);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (rs.next()) {
+                    long value = rs.getLong(1);
+                    if (!rs.wasNull()) lastReadReceiptTimeMs = Math.max(lastReadReceiptTimeMs, value);
+                }
+            }
+        }
+
+        try (PreparedStatement ps = c.prepareStatement(receiptWatermarkSql)) {
+            ps.setString(1, cleanOwner);
+            ps.setString(2, cleanPeer);
+            ps.setString(3, cleanPeer);
+            ps.setString(4, cleanOwner);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (rs.next()) {
+                    long value = rs.getLong(1);
+                    if (!rs.wasNull()) lastReadReceiptTimeMs = Math.max(lastReadReceiptTimeMs, value);
+                }
+            }
+        }
+
+        try (PreparedStatement ps = c.prepareStatement(unreadSql)) {
+            ps.setString(1, cleanPeer);
+            ps.setString(2, cleanOwner);
+            ps.setLong(3, lastReadReceiptTimeMs);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (rs.next()) unreadCount = rs.getInt(1);
+            }
+        }
+
+        return new DialogSummary(
+                cleanOwner,
+                cleanPeer,
+                relationFlag,
+                lastMessageBlobB64,
+                lastMessageTimeMs,
+                unreadCount,
+                lastReadReceiptTimeMs,
+                System.currentTimeMillis(),
+                lastMessageTimeMs > 0 || unreadCount > 0 || lastReadReceiptTimeMs > 0
+        );
+    }
+
+    private void upsert(Connection c, DialogSummary summary) throws SQLException {
+        try (PreparedStatement ps = c.prepareStatement("""
+            INSERT INTO dm_dialog_state (
+                owner_login, peer_login, relation_flag, last_message_blob_b64,
+                last_message_time_ms, unread_count, last_read_receipt_time_ms, updated_at_ms
+            ) VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+            ON CONFLICT (owner_login, peer_login) DO UPDATE SET
+                relation_flag = EXCLUDED.relation_flag,
+                last_message_blob_b64 = EXCLUDED.last_message_blob_b64,
+                last_message_time_ms = EXCLUDED.last_message_time_ms,
+                unread_count = EXCLUDED.unread_count,
+                last_read_receipt_time_ms = EXCLUDED.last_read_receipt_time_ms,
+                updated_at_ms = EXCLUDED.updated_at_ms
+            """)) {
+            ps.setString(1, summary.ownerLogin());
+            ps.setString(2, summary.peerLogin());
+            ps.setString(3, normalizeRelationFlag(summary.relationFlag()));
+            ps.setString(4, summary.lastMessageBlobB64());
+            ps.setLong(5, summary.lastMessageTimeMs());
+            ps.setInt(6, summary.unreadCount());
+            ps.setLong(7, summary.lastReadReceiptTimeMs());
+            ps.setLong(8, summary.updatedAtMs());
+            ps.executeUpdate();
+        }
+    }
+
+    private String resolveRelationFlag(Connection c, String ownerLogin, String peerLogin) throws SQLException {
+        if (ConnectionsStateDAO.getInstance().hasOutgoingByRelTypeCanonical(c, ownerLogin, peerLogin, MsgSubType.CONNECTION_CLOSE_FRIEND)) {
+            return "close_friend";
+        }
+        if (ConnectionsStateDAO.getInstance().hasOutgoingByRelTypeCanonical(c, ownerLogin, peerLogin, MsgSubType.CONNECTION_FRIEND)) {
+            return "friend";
+        }
+        if (ConnectionsStateDAO.getInstance().hasOutgoingByRelTypeCanonical(c, ownerLogin, peerLogin, MsgSubType.CONNECTION_CONTACT)) {
+            return "contact";
+        }
+        return "none";
+    }
+
+    private boolean hasAnyRow(Connection c) throws SQLException {
+        try (Statement st = c.createStatement();
+             ResultSet rs = st.executeQuery("SELECT 1 FROM dm_dialog_state LIMIT 1")) {
+            return rs.next();
+        }
+    }
+
+    private List<PairItem> listConversationPairs(Connection c) throws SQLException {
+        String sql = """
+            SELECT DISTINCT owner_login, peer_login
+            FROM (
+                SELECT
+                    m.target_login AS owner_login,
+                    CASE
+                        WHEN LOWER(m.target_login) = LOWER(m.to_login) THEN m.from_login
+                        ELSE m.to_login
+                    END AS peer_login
+                FROM signed_messages m
+                WHERE m.message_type IN (1, 2, 3, 4, 5, 6, 7, 8)
+
+                UNION ALL
+
+                SELECT m.from_login AS owner_login, m.to_login AS peer_login
+                FROM signed_messages m
+                WHERE m.message_type IN (5, 6, 7, 8)
+
+                UNION ALL
+
+                SELECT m.to_login AS owner_login, m.from_login AS peer_login
+                FROM signed_messages m
+                WHERE m.message_type IN (5, 6, 7, 8)
+            ) pairs
+            WHERE owner_login IS NOT NULL
+              AND peer_login IS NOT NULL
+              AND BTRIM(owner_login) <> ''
+              AND BTRIM(peer_login) <> ''
+              AND LOWER(owner_login) <> LOWER(peer_login)
+            ORDER BY owner_login, peer_login
+            """;
+        List<PairItem> out = new ArrayList<>();
+        try (Statement st = c.createStatement();
+             ResultSet rs = st.executeQuery(sql)) {
+            while (rs.next()) {
+                String ownerLogin = rs.getString("owner_login");
+                String peerLogin = rs.getString("peer_login");
+                if (normalize(ownerLogin).isEmpty() || normalize(peerLogin).isEmpty()) continue;
+                out.add(new PairItem(ownerLogin, peerLogin));
+            }
+        }
+        return out;
+    }
+
+    private void addOrUpdateSummary(Map<String, DialogSummary> map, String ownerLogin, String peerLogin, String relationFlag, boolean hasDialog) {
+        String owner = normalize(ownerLogin);
+        String peer = normalize(peerLogin);
+        if (owner.isEmpty() || peer.isEmpty() || owner.equalsIgnoreCase(peer)) return;
+        String key = normKey(peer);
+        DialogSummary current = map.get(key);
+        if (current == null) {
+            map.put(key, new DialogSummary(owner, peer, relationFlag, "", 0L, 0, 0L, System.currentTimeMillis(), hasDialog));
+            return;
+        }
+        String nextRelation = current.relationFlag();
+        if ("close_friend".equalsIgnoreCase(relationFlag) || "close_friend".equalsIgnoreCase(nextRelation)) {
+            nextRelation = "close_friend";
+        } else if ("friend".equalsIgnoreCase(relationFlag) || "friend".equalsIgnoreCase(nextRelation)) {
+            nextRelation = "friend";
+        } else if ("contact".equalsIgnoreCase(relationFlag) || "contact".equalsIgnoreCase(nextRelation)) {
+            nextRelation = "contact";
+        } else {
+            nextRelation = normalizeRelationFlag(nextRelation);
+        }
+        map.put(key, new DialogSummary(
+                current.ownerLogin().isEmpty() ? owner : current.ownerLogin(),
+                peer,
+                nextRelation,
+                current.lastMessageBlobB64(),
+                current.lastMessageTimeMs(),
+                current.unreadCount(),
+                current.lastReadReceiptTimeMs(),
+                current.updatedAtMs(),
+                current.hasDialog() || hasDialog
+        ));
+    }
+
+    private void syncMessagesToWatermark(Connection c, String ownerLogin, String peerLogin, long watermark) throws SQLException {
+        if (watermark <= 0) return;
+        String cleanOwner = normalize(ownerLogin);
+        String cleanPeer = normalize(peerLogin);
+        if (cleanOwner.isEmpty() || cleanPeer.isEmpty() || cleanOwner.equalsIgnoreCase(cleanPeer)) return;
+        try (PreparedStatement ps = c.prepareStatement("""
+            UPDATE signed_messages
+            SET read_at_ms = CASE
+                WHEN read_at_ms IS NULL OR read_at_ms <= 0 THEN ?
+                WHEN read_at_ms > ? THEN read_at_ms
+                ELSE read_at_ms
+            END
+            WHERE (
+                    (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                 OR (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                  )
+              AND message_type IN (1, 2)
+              AND time_ms <= ?
+            """)) {
+            ps.setLong(1, watermark);
+            ps.setLong(2, watermark);
+            ps.setString(3, cleanOwner);
+            ps.setString(4, cleanPeer);
+            ps.setString(5, cleanPeer);
+            ps.setString(6, cleanOwner);
+            ps.setLong(7, watermark);
+            ps.executeUpdate();
+        }
+    }
+
+    private long loadExistingWatermark(Connection c, String ownerLogin, String peerLogin) throws SQLException {
+        try (PreparedStatement ps = c.prepareStatement("""
+            SELECT last_read_receipt_time_ms
+            FROM dm_dialog_state
+            WHERE LOWER(owner_login) = LOWER(?)
+              AND LOWER(peer_login) = LOWER(?)
+            LIMIT 1
+            """)) {
+            ps.setString(1, ownerLogin);
+            ps.setString(2, peerLogin);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (!rs.next()) return 0L;
+                long value = rs.getLong(1);
+                return rs.wasNull() ? 0L : value;
+            }
+        }
+    }
+
+    private String normalize(String value) {
+        return value == null ? "" : value.trim();
+    }
+
+    private String normKey(String value) {
+        return normalize(value).toLowerCase(Locale.ROOT);
+    }
+
+    private String normalizeRelationFlag(String value) {
+        String clean = normalize(value).toLowerCase(Locale.ROOT);
+        if ("close_friend".equals(clean) || "friend".equals(clean) || "contact".equals(clean)) return clean;
+        return "none";
+    }
+
+    public record DialogSummary(
+            String ownerLogin,
+            String peerLogin,
+            String relationFlag,
+            String lastMessageBlobB64,
+            long lastMessageTimeMs,
+            int unreadCount,
+            long lastReadReceiptTimeMs,
+            long updatedAtMs,
+            boolean hasDialog
+    ) {}
+
+    private record PairItem(String ownerLogin, String peerLogin) {}
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/DmSyncOutboxDAO.java

@@ -0,0 +1,232 @@
+package shine.db.dao;
+
+import shine.db.DbController;
+import shine.db.entities.DmSyncOutboxEntry;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Types;
+import java.util.ArrayList;
+import java.util.List;
+
+/** Outbox событий DM для единственного второго access-сервера пользователя. */
+public final class DmSyncOutboxDAO {
+    private static volatile DmSyncOutboxDAO instance;
+    private final DbController db = DbController.getInstance();
+
+    private DmSyncOutboxDAO() {}
+
+    public static DmSyncOutboxDAO getInstance() {
+        if (instance == null) {
+            synchronized (DmSyncOutboxDAO.class) {
+                if (instance == null) instance = new DmSyncOutboxDAO();
+            }
+        }
+        return instance;
+    }
+
+    public void upsert(
+            String ownerLogin,
+            String primaryMessageKey,
+            String eventId,
+            String secondaryMessageKey,
+            boolean synced,
+            long createdAtMs
+    ) throws SQLException {
+        long now = System.currentTimeMillis();
+        String sql = """
+            INSERT INTO dm_sync_outbox (
+                owner_login, primary_message_key, event_id, secondary_message_key,
+                synced, created_at_ms, updated_at_ms
+            ) VALUES (LOWER(?), ?, ?, ?, ?, ?, ?)
+            ON CONFLICT (owner_login, primary_message_key) DO UPDATE SET
+                event_id = EXCLUDED.event_id,
+                secondary_message_key = EXCLUDED.secondary_message_key,
+                synced = CASE
+                    WHEN dm_sync_outbox.event_id = EXCLUDED.event_id
+                        THEN dm_sync_outbox.synced OR EXCLUDED.synced
+                    ELSE EXCLUDED.synced
+                END,
+                created_at_ms = CASE
+                    WHEN dm_sync_outbox.event_id = EXCLUDED.event_id
+                        THEN dm_sync_outbox.created_at_ms
+                    ELSE EXCLUDED.created_at_ms
+                END,
+                updated_at_ms = EXCLUDED.updated_at_ms
+            """;
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, ownerLogin);
+            ps.setString(2, primaryMessageKey);
+            ps.setString(3, eventId);
+            if (secondaryMessageKey == null || secondaryMessageKey.isBlank()) ps.setNull(4, Types.VARCHAR);
+            else ps.setString(4, secondaryMessageKey.trim());
+            ps.setBoolean(5, synced);
+            ps.setLong(6, createdAtMs);
+            ps.setLong(7, now);
+            ps.executeUpdate();
+        }
+    }
+
+    public List<DmSyncOutboxEntry> listUnsynced(String ownerLogin, int limit) throws SQLException {
+        return listUnsynced(ownerLogin, 0L, "", limit);
+    }
+
+    public List<DmSyncOutboxEntry> listUnsynced(
+            String ownerLogin, long afterCreatedAtMs, String afterPrimaryMessageKey, int limit
+    ) throws SQLException {
+        String sql = """
+            SELECT owner_login, primary_message_key, event_id, secondary_message_key,
+                   synced, created_at_ms, updated_at_ms
+            FROM dm_sync_outbox
+            WHERE LOWER(owner_login) = LOWER(?) AND synced = FALSE
+              AND (created_at_ms > ? OR (created_at_ms = ? AND primary_message_key > ?))
+            ORDER BY created_at_ms ASC, primary_message_key ASC
+            LIMIT ?
+            """;
+        List<DmSyncOutboxEntry> out = new ArrayList<>();
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, ownerLogin);
+            ps.setLong(2, Math.max(0L, afterCreatedAtMs));
+            ps.setLong(3, Math.max(0L, afterCreatedAtMs));
+            ps.setString(4, afterPrimaryMessageKey == null ? "" : afterPrimaryMessageKey);
+            ps.setInt(5, Math.max(1, limit));
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) out.add(mapRow(rs));
+            }
+        }
+        return out;
+    }
+
+    public boolean hasUnsyncedForServer(String serverLogin) throws SQLException {
+        String sql = """
+            SELECT 1
+            FROM dm_sync_outbox o
+            JOIN user_access_servers_current r
+              ON LOWER(r.user_login) = LOWER(o.owner_login)
+            WHERE o.synced = FALSE AND LOWER(r.server_login) = LOWER(?)
+              AND EXISTS (
+                  SELECT 1
+                  FROM user_access_servers_current peer
+                  WHERE LOWER(peer.user_login) = LOWER(o.owner_login)
+                    AND LOWER(peer.server_login) <> LOWER(?)
+              )
+            LIMIT 1
+            """;
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, serverLogin);
+            ps.setString(2, serverLogin);
+            try (ResultSet rs = ps.executeQuery()) {
+                return rs.next();
+            }
+        }
+    }
+
+    public List<String> listUnsyncedOwnersForServer(String serverLogin) throws SQLException {
+        String sql = """
+            SELECT DISTINCT o.owner_login
+            FROM dm_sync_outbox o
+            JOIN user_access_servers_current r
+              ON LOWER(r.user_login) = LOWER(o.owner_login)
+            WHERE o.synced = FALSE AND LOWER(r.server_login) = LOWER(?)
+              AND EXISTS (
+                  SELECT 1
+                  FROM user_access_servers_current peer
+                  WHERE LOWER(peer.user_login) = LOWER(o.owner_login)
+                    AND LOWER(peer.server_login) <> LOWER(?)
+              )
+            ORDER BY o.owner_login
+            """;
+        List<String> result = new ArrayList<>();
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, serverLogin);
+            ps.setString(2, serverLogin);
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) result.add(rs.getString("owner_login"));
+            }
+        }
+        return result;
+    }
+
+    public int markSynced(String ownerLogin, String eventId) throws SQLException {
+        String sql = """
+            UPDATE dm_sync_outbox
+            SET synced = TRUE, updated_at_ms = ?
+            WHERE LOWER(owner_login) = LOWER(?) AND event_id = ?
+            """;
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setLong(1, System.currentTimeMillis());
+            ps.setString(2, ownerLogin);
+            ps.setString(3, eventId);
+            return ps.executeUpdate();
+        }
+    }
+
+    public int markSynced(String ownerLogin, List<String> eventIds) throws SQLException {
+        if (eventIds == null || eventIds.isEmpty()) return 0;
+        int total = 0;
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("""
+                 UPDATE dm_sync_outbox
+                 SET synced = TRUE, updated_at_ms = ?
+                 WHERE LOWER(owner_login) = LOWER(?) AND event_id = ?
+                 """)) {
+            long now = System.currentTimeMillis();
+            for (String eventId : eventIds) {
+                if (eventId == null || eventId.isBlank()) continue;
+                ps.setLong(1, now);
+                ps.setString(2, ownerLogin);
+                ps.setString(3, eventId.trim());
+                ps.addBatch();
+            }
+            for (int changed : ps.executeBatch()) if (changed > 0) total += changed;
+        }
+        return total;
+    }
+
+    public int markAllUnsynced(String ownerLogin) throws SQLException {
+        String sql = """
+            UPDATE dm_sync_outbox
+            SET synced = FALSE, updated_at_ms = ?
+            WHERE LOWER(owner_login) = LOWER(?)
+            """;
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setLong(1, System.currentTimeMillis());
+            ps.setString(2, ownerLogin);
+            return ps.executeUpdate();
+        }
+    }
+
+    public int markAllUnsynced() throws SQLException {
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("UPDATE dm_sync_outbox SET synced = FALSE, updated_at_ms = ?")) {
+            ps.setLong(1, System.currentTimeMillis());
+            return ps.executeUpdate();
+        }
+    }
+
+    public int removeMissingMessages() throws SQLException {
+        String sql = """
+            DELETE FROM dm_sync_outbox o
+            WHERE NOT EXISTS (
+                SELECT 1 FROM signed_messages m WHERE m.message_key = o.primary_message_key
+            )
+            """;
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            return ps.executeUpdate();
+        }
+    }
+
+    private DmSyncOutboxEntry mapRow(ResultSet rs) throws SQLException {
+        DmSyncOutboxEntry e = new DmSyncOutboxEntry();
+        e.setOwnerLogin(rs.getString("owner_login"));
+        e.setPrimaryMessageKey(rs.getString("primary_message_key"));
+        e.setEventId(rs.getString("event_id"));
+        e.setSecondaryMessageKey(rs.getString("secondary_message_key"));
+        e.setSynced(rs.getBoolean("synced"));
+        e.setCreatedAtMs(rs.getLong("created_at_ms"));
+        e.setUpdatedAtMs(rs.getLong("updated_at_ms"));
+        return e;
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/DmSyncPeerStateDAO.java

@@ -0,0 +1,173 @@
+package shine.db.dao;
+
+import shine.db.DbController;
+import shine.db.entities.DmSyncPeerStateEntry;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+public final class DmSyncPeerStateDAO {
+    private static volatile DmSyncPeerStateDAO instance;
+    private final DbController db = DbController.getInstance();
+
+    private DmSyncPeerStateDAO() {}
+
+    public static DmSyncPeerStateDAO getInstance() {
+        if (instance == null) {
+            synchronized (DmSyncPeerStateDAO.class) {
+                if (instance == null) instance = new DmSyncPeerStateDAO();
+            }
+        }
+        return instance;
+    }
+
+    public DmSyncPeerStateEntry getOrCreate(String ownerLogin, String remoteServerLogin, String remoteServerUrl) throws SQLException {
+        DmSyncPeerStateEntry existing = get(ownerLogin, remoteServerLogin);
+        if (existing != null) {
+            if (remoteServerUrl != null && !remoteServerUrl.isBlank()
+                    && !remoteServerUrl.equals(existing.getRemoteServerUrl())) {
+                touchRemoteUrl(ownerLogin, remoteServerLogin, remoteServerUrl);
+                existing.setRemoteServerUrl(remoteServerUrl);
+            }
+            return existing;
+        }
+
+        long nowMs = System.currentTimeMillis();
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("""
+                INSERT INTO dm_sync_peer_state (
+                    owner_login, remote_server_login, remote_server_url,
+                    cursor_stored_at_ms, cursor_message_key, bootstrap_completed,
+                    last_sync_at_ms, last_error, updated_at_ms
+                ) VALUES (?, ?, ?, 0, '', FALSE, NULL, NULL, ?)
+                ON CONFLICT DO NOTHING
+                """)) {
+            ps.setString(1, ownerLogin);
+            ps.setString(2, remoteServerLogin);
+            ps.setString(3, remoteServerUrl == null ? "" : remoteServerUrl);
+            ps.setLong(4, nowMs);
+            ps.executeUpdate();
+        }
+        existing = get(ownerLogin, remoteServerLogin);
+        if (existing == null) {
+            throw new SQLException("Failed to create dm_sync_peer_state row");
+        }
+        return existing;
+    }
+
+    public void updateSuccess(
+            String ownerLogin,
+            String remoteServerLogin,
+            String remoteServerUrl,
+            long cursorStoredAtMs,
+            String cursorMessageKey,
+            boolean bootstrapCompleted
+    ) throws SQLException {
+        long nowMs = System.currentTimeMillis();
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("""
+                INSERT INTO dm_sync_peer_state (
+                    owner_login, remote_server_login, remote_server_url,
+                    cursor_stored_at_ms, cursor_message_key, bootstrap_completed,
+                    last_sync_at_ms, last_error, updated_at_ms
+                ) VALUES (?, ?, ?, ?, ?, ?, ?, NULL, ?)
+                ON CONFLICT (owner_login, remote_server_login) DO UPDATE SET
+                    remote_server_url = EXCLUDED.remote_server_url,
+                    cursor_stored_at_ms = EXCLUDED.cursor_stored_at_ms,
+                    cursor_message_key = EXCLUDED.cursor_message_key,
+                    bootstrap_completed = EXCLUDED.bootstrap_completed,
+                    last_sync_at_ms = EXCLUDED.last_sync_at_ms,
+                    last_error = NULL,
+                    updated_at_ms = EXCLUDED.updated_at_ms
+                """)) {
+            ps.setString(1, ownerLogin);
+            ps.setString(2, remoteServerLogin);
+            ps.setString(3, remoteServerUrl == null ? "" : remoteServerUrl);
+            ps.setLong(4, Math.max(0L, cursorStoredAtMs));
+            ps.setString(5, cursorMessageKey == null ? "" : cursorMessageKey);
+            ps.setBoolean(6, bootstrapCompleted);
+            ps.setLong(7, nowMs);
+            ps.setLong(8, nowMs);
+            ps.executeUpdate();
+        }
+    }
+
+    public void updateError(String ownerLogin, String remoteServerLogin, String remoteServerUrl, String error) throws SQLException {
+        long nowMs = System.currentTimeMillis();
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("""
+                INSERT INTO dm_sync_peer_state (
+                    owner_login, remote_server_login, remote_server_url,
+                    cursor_stored_at_ms, cursor_message_key, bootstrap_completed,
+                    last_sync_at_ms, last_error, updated_at_ms
+                ) VALUES (?, ?, ?, 0, '', FALSE, NULL, ?, ?)
+                ON CONFLICT (owner_login, remote_server_login) DO UPDATE SET
+                    remote_server_url = EXCLUDED.remote_server_url,
+                    last_error = EXCLUDED.last_error,
+                    updated_at_ms = EXCLUDED.updated_at_ms
+                """)) {
+            ps.setString(1, ownerLogin);
+            ps.setString(2, remoteServerLogin);
+            ps.setString(3, remoteServerUrl == null ? "" : remoteServerUrl);
+            ps.setString(4, truncate(error));
+            ps.setLong(5, nowMs);
+            ps.executeUpdate();
+        }
+    }
+
+    private DmSyncPeerStateEntry get(String ownerLogin, String remoteServerLogin) throws SQLException {
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("""
+                SELECT owner_login, remote_server_login, remote_server_url,
+                       cursor_stored_at_ms, cursor_message_key, bootstrap_completed,
+                       last_sync_at_ms, last_error, updated_at_ms
+                FROM dm_sync_peer_state
+                WHERE LOWER(owner_login) = LOWER(?)
+                  AND LOWER(remote_server_login) = LOWER(?)
+                LIMIT 1
+                """)) {
+            ps.setString(1, ownerLogin);
+            ps.setString(2, remoteServerLogin);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (!rs.next()) return null;
+                DmSyncPeerStateEntry e = new DmSyncPeerStateEntry();
+                e.setOwnerLogin(rs.getString("owner_login"));
+                e.setRemoteServerLogin(rs.getString("remote_server_login"));
+                e.setRemoteServerUrl(rs.getString("remote_server_url"));
+                e.setCursorStoredAtMs(rs.getLong("cursor_stored_at_ms"));
+                e.setCursorMessageKey(rs.getString("cursor_message_key"));
+                e.setBootstrapCompleted(rs.getBoolean("bootstrap_completed"));
+                long lastSyncAt = rs.getLong("last_sync_at_ms");
+                e.setLastSyncAtMs(rs.wasNull() ? null : lastSyncAt);
+                e.setLastError(rs.getString("last_error"));
+                e.setUpdatedAtMs(rs.getLong("updated_at_ms"));
+                return e;
+            }
+        }
+    }
+
+    private void touchRemoteUrl(String ownerLogin, String remoteServerLogin, String remoteServerUrl) throws SQLException {
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("""
+                UPDATE dm_sync_peer_state
+                SET remote_server_url = ?, updated_at_ms = ?
+                WHERE LOWER(owner_login) = LOWER(?)
+                  AND LOWER(remote_server_login) = LOWER(?)
+                """)) {
+            ps.setString(1, remoteServerUrl);
+            ps.setLong(2, System.currentTimeMillis());
+            ps.setString(3, ownerLogin);
+            ps.setString(4, remoteServerLogin);
+            ps.executeUpdate();
+        }
+    }
+
+    private static String truncate(String value) {
+        if (value == null) return null;
+        String clean = value.trim();
+        if (clean.length() <= 500) return clean;
+        return clean.substring(0, 500);
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/EspPairingRequestsDAO.java

@@ -1,6 +1,6 @@
 package shine.db.dao;
 
-import shine.db.SqliteDbController;
+import shine.db.DbController;
 import shine.db.entities.EspPairingRequestEntry;
 
 import java.sql.Connection;
@@ -13,7 +13,7 @@ import java.util.List;
 public final class EspPairingRequestsDAO {
 
     private static volatile EspPairingRequestsDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
     private EspPairingRequestsDAO() { }
 
@@ -110,7 +110,7 @@ public final class EspPairingRequestsDAO {
                    payload_type, status, short_code, fingerprint_b58, encrypted_payload, reject_reason,
                    approved_by_session_id, created_at_ms, expires_at_ms, updated_at_ms, delivered_to_homeserver
             FROM esp_pairing_requests
-            WHERE login = ? COLLATE NOCASE
+            WHERE LOWER(login) = LOWER(?)
               AND expires_at_ms > ?
               AND status = 'created'
             ORDER BY created_at_ms DESC
@@ -131,7 +131,7 @@ public final class EspPairingRequestsDAO {
             StringBuilder sql = new StringBuilder("""
                 SELECT COUNT(*)
                 FROM esp_pairing_requests
-                WHERE login = ? COLLATE NOCASE
+                WHERE LOWER(login) = LOWER(?)
                   AND created_at_ms >= ?
                   AND status IN (
                 """);

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/EspPairingSettingsDAO.java

@@ -1,6 +1,6 @@
 package shine.db.dao;
 
-import shine.db.SqliteDbController;
+import shine.db.DbController;
 import shine.db.entities.EspPairingSettingsEntry;
 
 import java.sql.Connection;
@@ -11,7 +11,7 @@ import java.sql.SQLException;
 public final class EspPairingSettingsDAO {
 
     private static volatile EspPairingSettingsDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
     private EspPairingSettingsDAO() { }
 
@@ -74,7 +74,7 @@ public final class EspPairingSettingsDAO {
         String sql = """
             SELECT login, enabled, password_hash, ttl_seconds, failed_attempts, first_failed_at_ms, blocked_until_ms, updated_at_ms
             FROM esp_pairing_settings
-            WHERE login = ? COLLATE NOCASE
+            WHERE LOWER(login) = LOWER(?)
             LIMIT 1
             """;
         try (PreparedStatement ps = c.prepareStatement(sql)) {

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/IpGeoCacheDAO.java

@@ -1,6 +1,6 @@
 package shine.db.dao;
 
-import shine.db.SqliteDbController;
+import shine.db.DbController;
 import shine.db.entities.IpGeoCacheEntry;
 
 import java.sql.*;
@@ -20,7 +20,7 @@ import java.sql.*;
 public final class IpGeoCacheDAO {
 
     private static volatile IpGeoCacheDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
     private IpGeoCacheDAO() { }
 

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/PushTokensDAO.java

@@ -1,6 +1,6 @@
 package shine.db.dao;
 
-import shine.db.SqliteDbController;
+import shine.db.DbController;
 import shine.db.entities.PushTokenEntry;
 
 import java.sql.Connection;
@@ -11,7 +11,7 @@ import java.util.List;
 
 public final class PushTokensDAO {
     private static volatile PushTokensDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
     private PushTokensDAO() {}
 

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/SignedDirectMessagesHistoryDAO.java

@@ -1,47 +0,0 @@
-package shine.db.dao;
-
-import shine.db.SqliteDbController;
-import shine.db.entities.SignedDirectMessageHistoryEntry;
-
-import java.sql.Connection;
-import java.sql.PreparedStatement;
-
-public final class SignedDirectMessagesHistoryDAO {
-    private static volatile SignedDirectMessagesHistoryDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
-
-    private SignedDirectMessagesHistoryDAO() {}
-
-    public static SignedDirectMessagesHistoryDAO getInstance() {
-        if (instance == null) {
-            synchronized (SignedDirectMessagesHistoryDAO.class) {
-                if (instance == null) instance = new SignedDirectMessagesHistoryDAO();
-            }
-        }
-        return instance;
-    }
-
-    public void insert(SignedDirectMessageHistoryEntry e) throws Exception {
-        try (Connection c = db.getConnection()) {
-            String sql = """
-                INSERT INTO signed_direct_messages_history (
-                    message_id, from_login, to_login, target_mode, target_session_id,
-                    message_type, time_ms, nonce, raw_packet, created_at_ms
-                ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
-                """;
-            try (PreparedStatement ps = c.prepareStatement(sql)) {
-                ps.setString(1, e.getMessageId());
-                ps.setString(2, e.getFromLogin());
-                ps.setString(3, e.getToLogin());
-                ps.setInt(4, e.getTargetMode());
-                ps.setString(5, e.getTargetSessionId());
-                ps.setInt(6, e.getMessageType());
-                ps.setLong(7, e.getTimeMs());
-                ps.setLong(8, e.getNonce());
-                ps.setBytes(9, e.getRawPacket());
-                ps.setLong(10, e.getCreatedAtMs());
-                ps.executeUpdate();
-            }
-        }
-    }
-}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/SignedDmReplayDAO.java

@@ -1,50 +0,0 @@
-package shine.db.dao;
-
-import shine.db.SqliteDbController;
-
-import java.sql.Connection;
-import java.sql.PreparedStatement;
-
-public final class SignedDmReplayDAO {
-    private static volatile SignedDmReplayDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
-
-    private SignedDmReplayDAO() {}
-
-    public static SignedDmReplayDAO getInstance() {
-        if (instance == null) {
-            synchronized (SignedDmReplayDAO.class) {
-                if (instance == null) instance = new SignedDmReplayDAO();
-            }
-        }
-        return instance;
-    }
-
-    public boolean registerUnique(String fromLogin, long timeMs, long nonce, long nowMs) throws Exception {
-        cleanupExpired(nowMs - 15L * 60L * 1000L);
-        try (Connection c = db.getConnection()) {
-            String sql = """
-                INSERT OR IGNORE INTO signed_direct_message_replay (
-                    from_login, time_ms, nonce, created_at_ms
-                ) VALUES (?, ?, ?, ?)
-                """;
-            try (PreparedStatement ps = c.prepareStatement(sql)) {
-                ps.setString(1, fromLogin);
-                ps.setLong(2, timeMs);
-                ps.setLong(3, nonce);
-                ps.setLong(4, nowMs);
-                return ps.executeUpdate() > 0;
-            }
-        }
-    }
-
-    public void cleanupExpired(long minCreatedAtMs) throws Exception {
-        try (Connection c = db.getConnection()) {
-            String sql = "DELETE FROM signed_direct_message_replay WHERE created_at_ms < ?";
-            try (PreparedStatement ps = c.prepareStatement(sql)) {
-                ps.setLong(1, minCreatedAtMs);
-                ps.executeUpdate();
-            }
-        }
-    }
-}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/SignedMessagesDAO.java

@@ -1,7 +1,7 @@
 package shine.db.dao;
 
-import shine.db.SqliteDbController;
+import shine.db.DbController;
-import shine.db.entities.SignedMessageV2Entry;
+import shine.db.entities.SignedMessageEntry;
 
 import java.sql.Connection;
 import java.sql.PreparedStatement;
@@ -11,9 +11,7 @@ import java.sql.Statement;
 import java.util.ArrayList;
 import java.util.List;
 
-public final class SignedMessagesV2DAO {
+public final class SignedMessagesDAO {
-    private static final int SQLITE_BUSY_MAX_RETRIES = 6;
-    private static final long SQLITE_BUSY_RETRY_BASE_DELAY_MS = 40L;
 
     public enum ApplyStatus {
         APPLIED,
@@ -26,39 +24,41 @@ public final class SignedMessagesV2DAO {
         }
     }
 
-    private static volatile SignedMessagesV2DAO instance;
+    private static volatile SignedMessagesDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
-    private SignedMessagesV2DAO() {}
+    private SignedMessagesDAO() {}
 
-    public static SignedMessagesV2DAO getInstance() {
+    public static SignedMessagesDAO getInstance() {
         if (instance == null) {
-            synchronized (SignedMessagesV2DAO.class) {
+            synchronized (SignedMessagesDAO.class) {
-                if (instance == null) instance = new SignedMessagesV2DAO();
+                if (instance == null) instance = new SignedMessagesDAO();
             }
         }
         return instance;
     }
 
-    public ApplyStatus insertIfAbsent(SignedMessageV2Entry e) throws Exception {
+    public ApplyStatus insertIfAbsent(SignedMessageEntry e) throws Exception {
         return withBusyRetry(() -> {
             try (Connection c = db.getConnection()) {
                 if (isBlockedByConversationDelete(c, e.getFromLogin(), e.getToLogin(), e.getTimeMs())) {
                     return ApplyStatus.BLOCKED_BY_CONVERSATION_TOMBSTONE;
                 }
                 String sql = """
-                    INSERT OR IGNORE INTO signed_messages_v2 (
+                    INSERT INTO signed_messages (
                         message_key, base_key, target_login, from_login, to_login,
                         time_ms, nonce, message_type, revision_time_ms, reencrypted_at_ms,
                         raw_block, created_at_ms, source_api, origin_session_id,
                         receipt_ref_base_key, receipt_ref_type, read_at_ms
                     ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                    ON CONFLICT DO NOTHING
                     """;
                 try (PreparedStatement ps = c.prepareStatement(sql)) {
                     bindSignedMessage(ps, e);
                     ApplyStatus status = ps.executeUpdate() > 0 ? ApplyStatus.APPLIED : ApplyStatus.DUPLICATE_OR_OLDER;
                     if (status.applied()) {
                         markMessageReadByReceipt(c, e);
+                        DmDialogStateDAO.getInstance().refreshFromEntry(c, e);
                     }
                     return status;
                 }
@@ -66,7 +66,7 @@ public final class SignedMessagesV2DAO {
         });
     }
 
-    public boolean insertPairBothOrNothing(SignedMessageV2Entry first, SignedMessageV2Entry second) throws Exception {
+    public boolean insertPairBothOrNothing(SignedMessageEntry first, SignedMessageEntry second) throws Exception {
         return withBusyRetry(() -> {
             try (Connection c = db.getConnection()) {
                 boolean prevAutoCommit = c.getAutoCommit();
@@ -77,6 +77,7 @@ public final class SignedMessagesV2DAO {
                     if (insertedFirst == 1 && insertedSecond == 1) {
                         markMessageReadByReceipt(c, first);
                         markMessageReadByReceipt(c, second);
+                        DmDialogStateDAO.getInstance().refreshConversationPair(c, first.getFromLogin(), first.getToLogin());
                         c.commit();
                         return true;
                     }
@@ -95,7 +96,7 @@ public final class SignedMessagesV2DAO {
         });
     }
 
-    public ApplyStatus upsertContentPair(SignedMessageV2Entry incoming, SignedMessageV2Entry outgoing) throws Exception {
+    public ApplyStatus upsertContentPair(SignedMessageEntry incoming, SignedMessageEntry outgoing) throws Exception {
         return withBusyRetry(() -> {
             try (Connection c = db.getConnection()) {
                 boolean prevAutoCommit = c.getAutoCommit();
@@ -123,6 +124,7 @@ public final class SignedMessagesV2DAO {
                     markMessageReadByReceipt(c, outgoing);
                     resetDeliveryRows(c, incoming.getMessageKey());
                     resetDeliveryRows(c, outgoing.getMessageKey());
+                    DmDialogStateDAO.getInstance().refreshConversationPair(c, incoming.getFromLogin(), incoming.getToLogin());
 
                     c.commit();
                     return ApplyStatus.APPLIED;
@@ -136,7 +138,7 @@ public final class SignedMessagesV2DAO {
         });
     }
 
-    public ApplyStatus upsertIncomingCopy(SignedMessageV2Entry incoming) throws Exception {
+    public ApplyStatus upsertIncomingCopy(SignedMessageEntry incoming) throws Exception {
         return withBusyRetry(() -> {
             try (Connection c = db.getConnection()) {
                 boolean prevAutoCommit = c.getAutoCommit();
@@ -161,6 +163,7 @@ public final class SignedMessagesV2DAO {
                     upsertMessage(c, incoming);
                     markMessageReadByReceipt(c, incoming);
                     resetDeliveryRows(c, incoming.getMessageKey());
+                    DmDialogStateDAO.getInstance().refreshConversationPair(c, incoming.getFromLogin(), incoming.getToLogin());
                     c.commit();
                     return ApplyStatus.APPLIED;
                 } catch (Exception ex) {
@@ -173,7 +176,7 @@ public final class SignedMessagesV2DAO {
         });
     }
 
-    public ApplyStatus applyDeleteMessage(SignedMessageV2Entry tombstone) throws Exception {
+    public ApplyStatus applyDeleteMessage(SignedMessageEntry tombstone) throws Exception {
         return withBusyRetry(() -> {
             try (Connection c = db.getConnection()) {
                 boolean prevAutoCommit = c.getAutoCommit();
@@ -191,6 +194,7 @@ public final class SignedMessagesV2DAO {
                     deleteMessageContentAndReceipts(c, tombstone.getBaseKey());
                     upsertMessage(c, tombstone);
                     resetDeliveryRows(c, tombstone.getMessageKey());
+                    DmDialogStateDAO.getInstance().refreshConversationPair(c, tombstone.getFromLogin(), tombstone.getToLogin());
 
                     c.commit();
                     return ApplyStatus.APPLIED;
@@ -204,7 +208,7 @@ public final class SignedMessagesV2DAO {
         });
     }
 
-    public ApplyStatus applyDeleteConversation(SignedMessageV2Entry tombstone) throws Exception {
+    public ApplyStatus applyDeleteConversation(SignedMessageEntry tombstone) throws Exception {
         return withBusyRetry(() -> {
             try (Connection c = db.getConnection()) {
                 boolean prevAutoCommit = c.getAutoCommit();
@@ -219,6 +223,7 @@ public final class SignedMessagesV2DAO {
                     deleteConversationHistoryBefore(c, tombstone.getFromLogin(), tombstone.getToLogin(), tombstone.getTimeMs());
                     upsertMessage(c, tombstone);
                     resetDeliveryRows(c, tombstone.getMessageKey());
+                    DmDialogStateDAO.getInstance().refreshConversationPair(c, tombstone.getFromLogin(), tombstone.getToLogin());
 
                     c.commit();
                     return ApplyStatus.APPLIED;
@@ -232,7 +237,7 @@ public final class SignedMessagesV2DAO {
         });
     }
 
-    public SignedMessageV2Entry getByMessageKey(String messageKey) throws Exception {
+    public SignedMessageEntry getByMessageKey(String messageKey) throws Exception {
         try (Connection c = db.getConnection()) {
             String sql = """
                 SELECT
@@ -240,9 +245,9 @@ public final class SignedMessagesV2DAO {
                     time_ms, nonce, message_type, revision_time_ms, reencrypted_at_ms,
                     raw_block, created_at_ms, source_api, origin_session_id,
                     receipt_ref_base_key, receipt_ref_type, read_at_ms
-                FROM signed_messages_v2
+                FROM %s
                 WHERE message_key = ?
-                """;
+                """.formatted(messagesTable());
             try (PreparedStatement ps = c.prepareStatement(sql)) {
                 ps.setString(1, messageKey);
                 try (ResultSet rs = ps.executeQuery()) {
@@ -253,7 +258,7 @@ public final class SignedMessagesV2DAO {
         }
     }
 
-    public SignedMessageV2Entry getLatestConversationDelete(String fromLogin, String toLogin) throws Exception {
+    public SignedMessageEntry getLatestConversationDelete(String fromLogin, String toLogin) throws Exception {
         try (Connection c = db.getConnection()) {
             return getLatestConversationDelete(c, fromLogin, toLogin);
         }
@@ -268,9 +273,10 @@ public final class SignedMessagesV2DAO {
         withBusyRetry(() -> {
             try (Connection c = db.getConnection()) {
                 String sql = """
-                    INSERT OR IGNORE INTO signed_message_session_delivery (
+                    INSERT INTO signed_message_session_delivery (
                         message_key, session_id, delivered, delivered_at_ms, created_at_ms
                     ) VALUES (?, ?, 0, NULL, ?)
+                    ON CONFLICT DO NOTHING
                     """;
                 try (PreparedStatement ps = c.prepareStatement(sql)) {
                     for (String sessionId : sessionIds) {
@@ -314,22 +320,23 @@ public final class SignedMessagesV2DAO {
         });
     }
 
-    public List<SignedMessageV2Entry> listPendingForSession(String login, String sessionId) throws Exception {
+    public List<SignedMessageEntry> listPendingForSession(String login, String sessionId) throws Exception {
         return withBusyRetry(() -> {
             try (Connection c = db.getConnection()) {
                 String fillSql = """
-                    INSERT OR IGNORE INTO signed_message_session_delivery (
+                    INSERT INTO signed_message_session_delivery (
                         message_key, session_id, delivered, delivered_at_ms, created_at_ms
                     )
                     SELECT m.message_key, ?, 0, NULL, ?
-                    FROM signed_messages_v2 m
+                    FROM %s m
                     WHERE (
-                        (m.message_type IN (1, 3) AND m.to_login = ? COLLATE NOCASE)
+                        (m.message_type IN (1, 3) AND LOWER(m.to_login) = LOWER(?))
-                        OR (m.message_type IN (2, 4) AND m.from_login = ? COLLATE NOCASE)
+                        OR (m.message_type IN (2, 4) AND LOWER(m.from_login) = LOWER(?))
                         OR (m.message_type IN (5, 6, 7, 8)
-                            AND (m.from_login = ? COLLATE NOCASE OR m.to_login = ? COLLATE NOCASE))
+                            AND (LOWER(m.from_login) = LOWER(?) OR LOWER(m.to_login) = LOWER(?)))
                     )
-                    """;
+                    ON CONFLICT DO NOTHING
+                    """.formatted(messagesTable());
                 long now = System.currentTimeMillis();
                 try (PreparedStatement ps = c.prepareStatement(fillSql)) {
                     ps.setString(1, sessionId);
@@ -347,13 +354,13 @@ public final class SignedMessagesV2DAO {
                         m.time_ms, m.nonce, m.message_type, m.revision_time_ms, m.reencrypted_at_ms,
                         m.raw_block, m.created_at_ms, m.source_api, m.origin_session_id,
                         m.receipt_ref_base_key, m.receipt_ref_type, m.read_at_ms
-                    FROM signed_messages_v2 m
+                    FROM %s m
                     JOIN signed_message_session_delivery d
                       ON d.message_key = m.message_key
                     WHERE d.session_id = ? AND d.delivered = 0
                     ORDER BY m.time_ms ASC, m.revision_time_ms ASC, m.reencrypted_at_ms ASC, m.created_at_ms ASC
-                    """;
+                    """.formatted(messagesTable());
-                List<SignedMessageV2Entry> out = new ArrayList<>();
+                List<SignedMessageEntry> out = new ArrayList<>();
                 try (PreparedStatement ps = c.prepareStatement(sql)) {
                     ps.setString(1, sessionId);
                     try (ResultSet rs = ps.executeQuery()) {
@@ -365,7 +372,7 @@ public final class SignedMessagesV2DAO {
         });
     }
 
-    public List<SignedMessageV2Entry> listConversationPage(
+    public List<SignedMessageEntry> listConversationPage(
             String login,
             String peerLogin,
             long beforeTimeMs,
@@ -379,12 +386,12 @@ public final class SignedMessagesV2DAO {
                     time_ms, nonce, message_type, revision_time_ms, reencrypted_at_ms,
                     raw_block, created_at_ms, source_api, origin_session_id,
                     receipt_ref_base_key, receipt_ref_type, read_at_ms
-                FROM signed_messages_v2
+                FROM %s
-                WHERE target_login = ? COLLATE NOCASE
+                WHERE LOWER(target_login) = LOWER(?)
                   AND message_type IN (1, 2)
                   AND (
-                        (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
+                        (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
-                     OR (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
+                     OR (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
                   )
                   AND (
                         ? <= 0
@@ -393,8 +400,8 @@ public final class SignedMessagesV2DAO {
                   )
                 ORDER BY time_ms DESC, message_key DESC
                 LIMIT ?
-                """;
+                """.formatted(messagesTable());
-            List<SignedMessageV2Entry> out = new ArrayList<>();
+            List<SignedMessageEntry> out = new ArrayList<>();
             try (PreparedStatement ps = c.prepareStatement(sql)) {
                 ps.setString(1, login);
                 ps.setString(2, login);
@@ -415,9 +422,75 @@ public final class SignedMessagesV2DAO {
         }
     }
 
-    private void upsertMessage(Connection c, SignedMessageV2Entry e) throws SQLException {
+    public SyncBatch listSyncBatch(
+            String ownerLogin,
+            long afterStoredAtMs,
+            String afterMessageKey,
+            int limit,
+            int maxBytes
+    ) throws Exception {
+        int safeLimit = Math.max(1, Math.min(limit, 500));
+        int sqlLimit = safeLimit + 1;
+        String safeAfterMessageKey = afterMessageKey == null ? "" : afterMessageKey;
+        try (Connection c = db.getConnection()) {
+            String sql = """
+                SELECT
+                    message_key, base_key, target_login, from_login, to_login,
+                    time_ms, nonce, message_type, revision_time_ms, reencrypted_at_ms,
+                    raw_block, created_at_ms, source_api, origin_session_id,
+                    receipt_ref_base_key, receipt_ref_type, read_at_ms
+                FROM %s
+                WHERE (
+                        LOWER(target_login) = LOWER(?)
+                     OR (
+                            message_type IN (5, 6, 7, 8)
+                        AND (LOWER(from_login) = LOWER(?) OR LOWER(to_login) = LOWER(?))
+                     )
+                  )
+                  AND (
+                        created_at_ms > ?
+                     OR (created_at_ms = ? AND (? = '' OR message_key > ?))
+                  )
+                ORDER BY created_at_ms ASC, message_key ASC
+                LIMIT ?
+                """.formatted(messagesTable());
+            List<SignedMessageEntry> out = new ArrayList<>();
+            boolean hasMore = false;
+            int usedBytes = 0;
+            try (PreparedStatement ps = c.prepareStatement(sql)) {
+                ps.setString(1, ownerLogin);
+                ps.setString(2, ownerLogin);
+                ps.setString(3, ownerLogin);
+                ps.setLong(4, Math.max(0L, afterStoredAtMs));
+                ps.setLong(5, Math.max(0L, afterStoredAtMs));
+                ps.setString(6, safeAfterMessageKey);
+                ps.setString(7, safeAfterMessageKey);
+                ps.setInt(8, sqlLimit);
+                try (ResultSet rs = ps.executeQuery()) {
+                    while (rs.next()) {
+                        SignedMessageEntry row = mapRow(rs);
+                        byte[] raw = row.getRawBlock();
+                        int rowBytes = raw == null ? 0 : raw.length;
+                        if (out.size() >= safeLimit) {
+                            hasMore = true;
+                            break;
+                        }
+                        if (!out.isEmpty() && maxBytes > 0 && usedBytes + rowBytes > maxBytes) {
+                            hasMore = true;
+                            break;
+                        }
+                        out.add(row);
+                        usedBytes += rowBytes;
+                    }
+                }
+            }
+            return new SyncBatch(out, hasMore, usedBytes);
+        }
+    }
+
+    private void upsertMessage(Connection c, SignedMessageEntry e) throws SQLException {
         String sql = """
-            INSERT INTO signed_messages_v2 (
+            INSERT INTO %s (
                 message_key, base_key, target_login, from_login, to_login,
                 time_ms, nonce, message_type, revision_time_ms, reencrypted_at_ms,
                 raw_block, created_at_ms, source_api, origin_session_id,
@@ -439,15 +512,15 @@ public final class SignedMessagesV2DAO {
                 origin_session_id = excluded.origin_session_id,
                 receipt_ref_base_key = excluded.receipt_ref_base_key,
                 receipt_ref_type = excluded.receipt_ref_type,
-                read_at_ms = COALESCE(signed_messages_v2.read_at_ms, excluded.read_at_ms)
+                read_at_ms = COALESCE(%s.read_at_ms, excluded.read_at_ms)
-            """;
+            """.formatted(messagesTable(), messagesTable());
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             bindSignedMessage(ps, e);
             ps.executeUpdate();
         }
     }
 
-    private void markMessageReadByReceipt(Connection c, SignedMessageV2Entry entry) throws SQLException {
+    private void markMessageReadByReceipt(Connection c, SignedMessageEntry entry) throws SQLException {
         if (entry == null) return;
         int messageType = entry.getMessageType();
         if (messageType != 3 && messageType != 4) return;
@@ -456,7 +529,7 @@ public final class SignedMessagesV2DAO {
         long readAtMs = entry.getTimeMs();
         if (readAtMs <= 0) return;
         try (PreparedStatement ps = c.prepareStatement("""
-            UPDATE signed_messages_v2
+            UPDATE %s
             SET read_at_ms = CASE
                 WHEN read_at_ms IS NULL OR read_at_ms <= 0 THEN ?
                 WHEN read_at_ms > ? THEN ?
@@ -464,7 +537,7 @@ public final class SignedMessagesV2DAO {
             END
             WHERE base_key = ?
               AND message_type IN (1, 2)
-            """)) {
+            """.formatted(messagesTable()))) {
             ps.setLong(1, readAtMs);
             ps.setLong(2, readAtMs);
             ps.setLong(3, readAtMs);
@@ -476,10 +549,10 @@ public final class SignedMessagesV2DAO {
     private RevisionMarker getRevisionMarkerByMessageKey(Connection c, String messageKey) throws SQLException {
         String sql = """
             SELECT revision_time_ms, reencrypted_at_ms
-            FROM signed_messages_v2
+            FROM %s
             WHERE message_key = ?
             LIMIT 1
-            """;
+            """.formatted(messagesTable());
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             ps.setString(1, messageKey);
             try (ResultSet rs = ps.executeQuery()) {
@@ -492,12 +565,12 @@ public final class SignedMessagesV2DAO {
     private RevisionMarker getCurrentContentMarker(Connection c, String baseKey) throws SQLException {
         String sql = """
             SELECT revision_time_ms, reencrypted_at_ms
-            FROM signed_messages_v2
+            FROM %s
             WHERE base_key = ?
               AND message_type IN (1, 2)
             ORDER BY revision_time_ms DESC, reencrypted_at_ms DESC
             LIMIT 1
-            """;
+            """.formatted(messagesTable());
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             ps.setString(1, baseKey);
             try (ResultSet rs = ps.executeQuery()) {
@@ -510,11 +583,11 @@ public final class SignedMessagesV2DAO {
     private boolean hasMessageDeleteTombstone(Connection c, String baseKey) throws SQLException {
         String sql = """
             SELECT 1
-            FROM signed_messages_v2
+            FROM %s
             WHERE base_key = ?
               AND message_type IN (5, 6)
             LIMIT 1
-            """;
+            """.formatted(messagesTable());
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             ps.setString(1, baseKey);
             try (ResultSet rs = ps.executeQuery()) {
@@ -531,13 +604,13 @@ public final class SignedMessagesV2DAO {
     private Long getLatestConversationDeleteBoundary(Connection c, String fromLogin, String toLogin) throws SQLException {
         String sql = """
             SELECT MAX(time_ms)
-            FROM signed_messages_v2
+            FROM %s
             WHERE message_type IN (7, 8)
               AND (
-                    (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
+                    (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
-                 OR (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
+                 OR (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
               )
-            """;
+            """.formatted(messagesTable());
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             ps.setString(1, fromLogin);
             ps.setString(2, toLogin);
@@ -551,22 +624,22 @@ public final class SignedMessagesV2DAO {
         }
     }
 
-    private SignedMessageV2Entry getLatestConversationDelete(Connection c, String fromLogin, String toLogin) throws Exception {
+    private SignedMessageEntry getLatestConversationDelete(Connection c, String fromLogin, String toLogin) throws Exception {
         String sql = """
             SELECT
                 message_key, base_key, target_login, from_login, to_login,
                 time_ms, nonce, message_type, revision_time_ms, reencrypted_at_ms,
                 raw_block, created_at_ms, source_api, origin_session_id,
-                receipt_ref_base_key, receipt_ref_type
+                receipt_ref_base_key, receipt_ref_type, read_at_ms
-            FROM signed_messages_v2
+            FROM %s
             WHERE message_type IN (7, 8)
               AND (
-                    (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
+                    (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
-                 OR (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
+                 OR (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
               )
             ORDER BY time_ms DESC
             LIMIT 1
-            """;
+            """.formatted(messagesTable());
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             ps.setString(1, fromLogin);
             ps.setString(2, toLogin);
@@ -582,16 +655,16 @@ public final class SignedMessagesV2DAO {
     private void deleteMessageContentAndReceipts(Connection c, String baseKey) throws SQLException {
         deleteDeliveryRowsByMessageSelection(c, """
             SELECT message_key
-            FROM signed_messages_v2
+            FROM %s
             WHERE (base_key = ? AND message_type IN (1, 2))
                OR (receipt_ref_base_key = ? AND message_type IN (3, 4))
-            """, baseKey, baseKey);
+            """.formatted(messagesTable()), baseKey, baseKey);
 
         try (PreparedStatement ps = c.prepareStatement("""
-            DELETE FROM signed_messages_v2
+            DELETE FROM %s
             WHERE (base_key = ? AND message_type IN (1, 2))
                OR (receipt_ref_base_key = ? AND message_type IN (3, 4))
-            """)) {
+            """.formatted(messagesTable()))) {
             ps.setString(1, baseKey);
             ps.setString(2, baseKey);
             ps.executeUpdate();
@@ -601,22 +674,22 @@ public final class SignedMessagesV2DAO {
     private void deleteConversationHistoryBefore(Connection c, String fromLogin, String toLogin, long boundaryTimeMs) throws SQLException {
         deleteDeliveryRowsByMessageSelection(c, """
             SELECT message_key
-            FROM signed_messages_v2
+            FROM %s
             WHERE time_ms < ?
               AND (
-                    (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
+                    (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
-                 OR (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
+                 OR (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
               )
-            """, boundaryTimeMs, fromLogin, toLogin, toLogin, fromLogin);
+            """.formatted(messagesTable()), boundaryTimeMs, fromLogin, toLogin, toLogin, fromLogin);
 
         try (PreparedStatement ps = c.prepareStatement("""
-            DELETE FROM signed_messages_v2
+            DELETE FROM %s
             WHERE time_ms < ?
               AND (
-                    (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
+                    (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
-                 OR (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
+                 OR (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
               )
-            """)) {
+            """.formatted(messagesTable()))) {
             ps.setLong(1, boundaryTimeMs);
             ps.setString(2, fromLogin);
             ps.setString(3, toLogin);
@@ -645,22 +718,22 @@ public final class SignedMessagesV2DAO {
         }
     }
 
-    private int insertStrict(Connection c, SignedMessageV2Entry e) throws SQLException {
+    private int insertStrict(Connection c, SignedMessageEntry e) throws SQLException {
         String sql = """
-            INSERT INTO signed_messages_v2 (
+            INSERT INTO %s (
                 message_key, base_key, target_login, from_login, to_login,
                 time_ms, nonce, message_type, revision_time_ms, reencrypted_at_ms,
                 raw_block, created_at_ms, source_api, origin_session_id,
                 receipt_ref_base_key, receipt_ref_type, read_at_ms
             ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
-            """;
+            """.formatted(messagesTable());
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             bindSignedMessage(ps, e);
             return ps.executeUpdate();
         }
     }
 
-    private void bindSignedMessage(PreparedStatement ps, SignedMessageV2Entry e) throws SQLException {
+    private void bindSignedMessage(PreparedStatement ps, SignedMessageEntry e) throws SQLException {
         ps.setString(1, e.getMessageKey());
         ps.setString(2, e.getBaseKey());
         ps.setString(3, e.getTargetLogin());
@@ -703,43 +776,8 @@ public final class SignedMessagesV2DAO {
         return msg.contains("constraint") || msg.contains("unique") || msg.contains("primary key");
     }
 
-    private boolean isBusyLock(SQLException ex) {
-        Throwable current = ex;
-        while (current != null) {
-            String msg = String.valueOf(current.getMessage()).toLowerCase();
-            if (msg.contains("sqlite_busy") || msg.contains("database is locked") || msg.contains("database table is locked")) {
-                return true;
-            }
-            current = current.getCause();
-        }
-        return false;
-    }
-
-    private void sleepBeforeBusyRetry(int attempt) throws SQLException {
-        long delayMs = SQLITE_BUSY_RETRY_BASE_DELAY_MS * (1L << Math.min(attempt, 4));
-        try {
-            Thread.sleep(delayMs);
-        } catch (InterruptedException ie) {
-            Thread.currentThread().interrupt();
-            SQLException sqlEx = new SQLException("Interrupted while retrying SQLite busy lock", ie);
-            throw sqlEx;
-        }
-    }
-
     private <T> T withBusyRetry(SqlWork<T> work) throws Exception {
-        SQLException lastBusy = null;
+        return work.run();
-        for (int attempt = 0; attempt < SQLITE_BUSY_MAX_RETRIES; attempt++) {
-            try {
-                return work.run();
-            } catch (SQLException ex) {
-                if (!isBusyLock(ex) || attempt >= SQLITE_BUSY_MAX_RETRIES - 1) {
-                    throw ex;
-                }
-                lastBusy = ex;
-                sleepBeforeBusyRetry(attempt);
-            }
-        }
-        throw lastBusy == null ? new SQLException("SQLite busy retry failed") : lastBusy;
     }
 
     private int compareMarkers(RevisionMarker left, RevisionMarker right) {
@@ -748,8 +786,12 @@ public final class SignedMessagesV2DAO {
         return Long.compare(left.reencryptedAtMs, right.reencryptedAtMs);
     }
 
-    private SignedMessageV2Entry mapRow(ResultSet rs) throws Exception {
+    private String messagesTable() {
-        SignedMessageV2Entry e = new SignedMessageV2Entry();
+        return "signed_messages";
+    }
+
+    private SignedMessageEntry mapRow(ResultSet rs) throws Exception {
+        SignedMessageEntry e = new SignedMessageEntry();
         e.setMessageKey(rs.getString("message_key"));
         e.setBaseKey(rs.getString("base_key"));
         e.setTargetLogin(rs.getString("target_login"));
@@ -773,11 +815,13 @@ public final class SignedMessagesV2DAO {
     }
 
     private record RevisionMarker(long revisionTimeMs, long reencryptedAtMs) {
-        private static RevisionMarker of(SignedMessageV2Entry entry) {
+        private static RevisionMarker of(SignedMessageEntry entry) {
             return new RevisionMarker(entry.getRevisionTimeMs(), entry.getReencryptedAtMs());
         }
     }
 
+    public record SyncBatch(List<SignedMessageEntry> items, boolean hasMore, int rawBytes) {}
+
     @FunctionalInterface
     private interface SqlWork<T> {
         T run() throws Exception;

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/SolanaUserPdaCurrentDAO.java

@@ -0,0 +1,71 @@
+package shine.db.dao;
+
+import shine.db.DbController;
+import shine.db.KeyEncodingUtil;
+import shine.db.entities.SolanaUserPdaCurrentEntry;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+/**
+ * Доступ к актуальной PostgreSQL-таблице пользователей, поддерживаемой sync-модулем.
+ */
+public final class SolanaUserPdaCurrentDAO {
+
+    private static volatile SolanaUserPdaCurrentDAO instance;
+
+    private final DbController db = DbController.getInstance();
+
+    private SolanaUserPdaCurrentDAO() {}
+
+    public static SolanaUserPdaCurrentDAO getInstance() {
+        if (instance == null) {
+            synchronized (SolanaUserPdaCurrentDAO.class) {
+                if (instance == null) {
+                    instance = new SolanaUserPdaCurrentDAO();
+                }
+            }
+        }
+        return instance;
+    }
+
+    public SolanaUserPdaCurrentEntry getByBlockchainName(String blockchainName) throws SQLException {
+        try (Connection c = db.getConnection()) {
+            return getByBlockchainName(c, blockchainName);
+        }
+    }
+
+    public SolanaUserPdaCurrentEntry getByBlockchainName(Connection c, String blockchainName) throws SQLException {
+        String sql = """
+            SELECT
+                login,
+                blockchain_name,
+                blockchain_key,
+                paid_limit_bytes
+            FROM solana_user_pda_current
+            WHERE blockchain_name = ?
+            LIMIT 1
+            """;
+
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, blockchainName);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (!rs.next()) {
+                    return null;
+                }
+                return mapRow(rs);
+            }
+        }
+    }
+
+    private SolanaUserPdaCurrentEntry mapRow(ResultSet rs) throws SQLException {
+        SolanaUserPdaCurrentEntry entry = new SolanaUserPdaCurrentEntry();
+        entry.setLogin(rs.getString("login"));
+        entry.setBlockchainName(rs.getString("blockchain_name"));
+        entry.setBlockchainKey(KeyEncodingUtil.normalizeKeyToBase64_32(rs.getString("blockchain_key")));
+        entry.setPaidLimitBytes(rs.getLong("paid_limit_bytes"));
+        return entry;
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/SubscriptionsDAO.java

@@ -1,7 +1,7 @@
 package shine.db.dao;
 
 import shine.db.MsgSubType;
-import shine.db.SqliteDbController;
+import shine.db.DbController;
 
 import java.sql.*;
 import java.util.ArrayList;
@@ -13,7 +13,7 @@ import java.util.List;
  * Возвращает по каждой активной подписке (FOLLOW) + "сам на себя":
  *  - login цели (channelLogin)
  *  - blockchainName цели (channelBchName)
- *  - count публикаций (TEXT_POST)
+ *  - count публикаций (видимые line-based TEXT-сообщения канала)
  *  - last publication: bytes оригинального блока (для timestamp)
  *  - last publication: bytes актуального блока (edit или orig) — для текста превью
  *
@@ -25,7 +25,7 @@ import java.util.List;
 public final class SubscriptionsDAO {
 
     private static volatile SubscriptionsDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
     private SubscriptionsDAO() {}
 
@@ -92,7 +92,7 @@ public final class SubscriptionsDAO {
 
     /**
      * Получить список подписок (активные FOLLOW) + "сам на себя" и по каждой:
-     * - count публикаций (TEXT_POST)
+     * - count публикаций (видимые line-based TEXT-сообщения канала)
      * - последнюю публикацию (orig bytes) + её edit (если есть)
      *
      * Поведение при 0 публикаций:
@@ -131,7 +131,7 @@ public final class SubscriptionsDAO {
                   ON s.channel_login = b.login
                  AND s.channel_bch_name = b.bch_name
                 WHERE b.msg_type = ?
-                  AND b.msg_sub_type IN (?, ?)
+                  AND b.msg_sub_type IN (?, ?, ?, ?, ?, ?)
                 GROUP BY b.login, b.bch_name
             ),
             last_pub AS (
@@ -144,7 +144,7 @@ public final class SubscriptionsDAO {
                   ON s.channel_login = b.login
                  AND s.channel_bch_name = b.bch_name
                 WHERE b.msg_type = ?
-                  AND b.msg_sub_type IN (?, ?)
+                  AND b.msg_sub_type IN (?, ?, ?, ?, ?, ?)
                 GROUP BY b.login, b.bch_name
             ),
             last_pub_block AS (
@@ -209,11 +209,19 @@ public final class SubscriptionsDAO {
             ps.setInt(i++, MSG_TYPE_TEXT);
             ps.setInt(i++, (int) MsgSubType.TEXT_POST);
             ps.setInt(i++, (int) MsgSubType.TEXT_REPOST);
+            ps.setInt(i++, (int) MsgSubType.TEXT_ENTRYPOINT);
+            ps.setInt(i++, (int) MsgSubType.TEXT_EXERCISE);
+            ps.setInt(i++, (int) MsgSubType.TEXT_SERVICE);
+            ps.setInt(i++, (int) MsgSubType.TEXT_COURSE);
 
             // last_pub
             ps.setInt(i++, MSG_TYPE_TEXT);
             ps.setInt(i++, (int) MsgSubType.TEXT_POST);
             ps.setInt(i++, (int) MsgSubType.TEXT_REPOST);
+            ps.setInt(i++, (int) MsgSubType.TEXT_ENTRYPOINT);
+            ps.setInt(i++, (int) MsgSubType.TEXT_EXERCISE);
+            ps.setInt(i++, (int) MsgSubType.TEXT_SERVICE);
+            ps.setInt(i++, (int) MsgSubType.TEXT_COURSE);
 
             try (ResultSet rs = ps.executeQuery()) {
                 while (rs.next()) {

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/SyncServersDAO.java

@@ -1,6 +1,6 @@
 package shine.db.dao;
 
-import shine.db.SqliteDbController;
+import shine.db.DbController;
 import shine.db.entities.SyncServerEntry;
 
 import java.sql.Connection;
@@ -17,7 +17,7 @@ import java.util.List;
 public final class SyncServersDAO {
 
     private static volatile SyncServersDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
     private SyncServersDAO() {}
 

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/TestFreeAvatarUploadsDAO.java

@@ -1,6 +1,6 @@
 package shine.db.dao;
 
-import shine.db.SqliteDbController;
+import shine.db.DbController;
 import shine.db.entities.TestFreeAvatarUploadEntry;
 
 import java.sql.Connection;
@@ -11,7 +11,7 @@ import java.sql.SQLException;
 public final class TestFreeAvatarUploadsDAO {
 
     private static volatile TestFreeAvatarUploadsDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
     private TestFreeAvatarUploadsDAO() {
     }
@@ -29,7 +29,7 @@ public final class TestFreeAvatarUploadsDAO {
         String sql = """
             SELECT login, used_count, updated_at_ms, last_tx_id
             FROM test_free_avatar_uploads
-            WHERE login = ? COLLATE NOCASE
+            WHERE LOWER(login) = LOWER(?)
             LIMIT 1
             """;
         try (PreparedStatement ps = c.prepareStatement(sql)) {

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/UserAccessServersCurrentDAO.java

@@ -0,0 +1,157 @@
+package shine.db.dao;
+
+import shine.db.DbController;
+import shine.db.KeyEncodingUtil;
+import shine.db.entities.UserAccessServerRouteEntry;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * DAO локальной routing-проекции access servers пользователей.
+ */
+public final class UserAccessServersCurrentDAO {
+
+    private static volatile UserAccessServersCurrentDAO instance;
+    private final DbController db = DbController.getInstance();
+
+    private UserAccessServersCurrentDAO() {}
+
+    public static UserAccessServersCurrentDAO getInstance() {
+        if (instance == null) {
+            synchronized (UserAccessServersCurrentDAO.class) {
+                if (instance == null) instance = new UserAccessServersCurrentDAO();
+            }
+        }
+        return instance;
+    }
+
+    public List<UserAccessServerRouteEntry> listByUserLogin(String userLogin) throws SQLException {
+        try (Connection c = db.getConnection()) {
+            return listByUserLogin(c, userLogin);
+        }
+    }
+
+    /**
+     * Возвращает первый access server пользователя ровно в порядке
+     * solana_user_pda_current.access_servers_json (access_servers[0]).
+     *
+     * В user_access_servers_current порядок массива намеренно не хранится,
+     * поэтому для auth-routing первичный сервер читается напрямую из PDA snapshot.
+     */
+    public UserAccessServerRouteEntry findPrimaryByUserLogin(String userLogin) throws SQLException {
+        String sql = """
+            SELECT
+                u.login AS user_login,
+                s.login AS server_login,
+                s.server_address AS server_url,
+                s.client_key AS server_client_key
+            FROM solana_user_pda_current u
+            CROSS JOIN LATERAL (
+                SELECT BTRIM(a.login_value) AS server_login
+                FROM jsonb_array_elements_text(
+                    CASE
+                        WHEN BTRIM(COALESCE(u.access_servers_json, '')) = '' THEN '[]'::jsonb
+                        ELSE u.access_servers_json::jsonb
+                    END
+                ) WITH ORDINALITY AS a(login_value, ord)
+                WHERE a.ord = 1
+            ) primary_access
+            JOIN solana_user_pda_current s
+              ON s.normalized_login = LOWER(primary_access.server_login)
+             AND s.is_server = TRUE
+             AND BTRIM(COALESCE(s.server_address, '')) <> ''
+            WHERE u.normalized_login = LOWER(BTRIM(?))
+            LIMIT 1
+            """;
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, userLogin);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (!rs.next()) return null;
+                return mapRow(rs);
+            }
+        }
+    }
+
+    public List<UserAccessServerRouteEntry> listByUserLogin(Connection c, String userLogin) throws SQLException {
+        String sql = """
+            SELECT user_login, server_login, server_url, server_client_key
+            FROM user_access_servers_current
+            WHERE LOWER(user_login) = LOWER(?)
+            ORDER BY server_login
+            """;
+        List<UserAccessServerRouteEntry> result = new ArrayList<>();
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, userLogin);
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) {
+                    result.add(mapRow(rs));
+                }
+            }
+        }
+        return result;
+    }
+
+    public List<String> listUserLoginsByServerLogin(String serverLogin) throws SQLException {
+        String sql = """
+            SELECT user_login
+            FROM user_access_servers_current
+            WHERE LOWER(server_login) = LOWER(?)
+            ORDER BY user_login
+            """;
+        List<String> result = new ArrayList<>();
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, serverLogin);
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) {
+                    result.add(rs.getString("user_login"));
+                }
+            }
+        }
+        return result;
+    }
+
+    /**
+     * Возвращает уникальные физические серверы из текущей routing-проекции.
+     * Используется транспортным пулом: одно WSS-соединение держится на сервер,
+     * а не на каждого пользователя этого сервера.
+     */
+    public List<UserAccessServerRouteEntry> listDistinctServers() throws SQLException {
+        String sql = """
+            SELECT DISTINCT ON (LOWER(server_login))
+                   server_login, server_url
+            FROM user_access_servers_current
+            WHERE server_login IS NOT NULL AND BTRIM(server_login) <> ''
+              AND server_url IS NOT NULL AND BTRIM(server_url) <> ''
+            ORDER BY LOWER(server_login), server_login, server_url
+            """;
+        List<UserAccessServerRouteEntry> result = new ArrayList<>();
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement(sql);
+             ResultSet rs = ps.executeQuery()) {
+            while (rs.next()) {
+                UserAccessServerRouteEntry entry = new UserAccessServerRouteEntry();
+                entry.setUserLogin("");
+                entry.setServerLogin(rs.getString("server_login"));
+                entry.setServerUrl(rs.getString("server_url"));
+                result.add(entry);
+            }
+        }
+        return result;
+    }
+
+    private UserAccessServerRouteEntry mapRow(ResultSet rs) throws SQLException {
+        UserAccessServerRouteEntry entry = new UserAccessServerRouteEntry();
+        entry.setUserLogin(rs.getString("user_login"));
+        entry.setServerLogin(rs.getString("server_login"));
+        entry.setServerUrl(rs.getString("server_url"));
+        entry.setServerClientKey(KeyEncodingUtil.normalizeKeyToBase64_32(rs.getString("server_client_key")));
+        return entry;
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/UserCreateDAO.java

@@ -1,128 +0,0 @@
-package shine.db.dao;
-
-import shine.db.SqliteDbController;
-import shine.db.entities.SolanaUserEntry;
-
-import java.sql.*;
-
-/**
- * UserCreateDAO — атомарное добавление пользователя:
- *  - solana_users (login, blockchain_name, solana_key, blockchain_key, client_key)
- *  - blockchain_state (blockchain_name, login, blockchain_key, size_limit, ... last_block_number=-1 ...)
- *
- * ВАЖНО:
- *  - только INSERT (без перезаписи существующих записей)
- *  - если login или blockchainName заняты — возвращаем false (пользователь уже есть/занято)
- */
-public final class UserCreateDAO {
-
-    private static volatile UserCreateDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
-    private final SolanaUsersDAO usersDao = SolanaUsersDAO.getInstance();
-
-    private UserCreateDAO() {}
-
-    public static UserCreateDAO getInstance() {
-        if (instance == null) {
-            synchronized (UserCreateDAO.class) {
-                if (instance == null) instance = new UserCreateDAO();
-            }
-        }
-        return instance;
-    }
-
-    /**
-     * @return true если добавили; false если занято (login уже есть или blockchainName уже существует).
-     */
-    public boolean insertUserWithBlockchain(
-            String login,
-            String blockchainName,
-            String solanaKey,
-            String blockchainKey,
-            String clientKey,
-            long sizeLimit,
-            long nowMs
-    ) throws SQLException {
-
-        try (Connection c = db.getConnection()) {
-            boolean oldAuto = c.getAutoCommit();
-            c.setAutoCommit(false);
-
-            try {
-                // 1) solana_users
-                SolanaUserEntry u = new SolanaUserEntry();
-                u.setLogin(login);
-                u.setBlockchainName(blockchainName);
-                u.setSolanaKey(solanaKey);
-                u.setBlockchainKey(blockchainKey);
-                u.setClientKey(clientKey);
-
-                usersDao.insert(c, u); // если login занят (NOCASE) или blockchainName (unique) -> constraint
-
-                // 2) blockchain_state — строго INSERT, без UPSERT (иначе можно перезаписать существующую цепочку)
-                insertBlockchainStateStrict(
-                        c,
-                        blockchainName,
-                        login,
-                        blockchainKey,
-                        sizeLimit,
-                        nowMs
-                );
-
-                c.commit();
-                return true;
-
-            } catch (SQLException e) {
-                c.rollback();
-
-                String msg = e.getMessage() == null ? "" : e.getMessage().toLowerCase();
-                if (msg.contains("constraint")) {
-                    return false;
-                }
-                throw e;
-
-            } finally {
-                c.setAutoCommit(oldAuto);
-            }
-        }
-    }
-
-    private static void insertBlockchainStateStrict(
-            Connection c,
-            String blockchainName,
-            String login,
-            String blockchainKey,
-            long sizeLimit,
-            long nowMs
-    ) throws SQLException {
-
-        String sql = """
-            INSERT INTO blockchain_state (
-                blockchain_name,
-                login,
-                blockchain_key,
-                size_limit,
-                file_size_bytes,
-                last_block_number,
-                last_block_hash,
-                updated_at_ms
-            ) VALUES (?, ?, ?, ?, ?, ?, ?, ?)
-            """;
-
-        try (PreparedStatement ps = c.prepareStatement(sql)) {
-            int i = 1;
-            ps.setString(i++, blockchainName);
-            ps.setString(i++, login);
-            ps.setString(i++, blockchainKey);
-
-            ps.setLong(i++, sizeLimit);
-            ps.setLong(i++, 0L);
-
-            ps.setInt(i++, -1);
-            ps.setNull(i++, Types.BLOB); // старт: блоков ещё нет
-            ps.setLong(i++, nowMs);
-
-            ps.executeUpdate(); // если blockchainName занят -> constraint (PK)
-        }
-    }
-}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/UserNotificationSeenStateDAO.java

@@ -0,0 +1,35 @@
+package shine.db.dao;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+
+public final class UserNotificationSeenStateDAO {
+    private static final UserNotificationSeenStateDAO INSTANCE = new UserNotificationSeenStateDAO();
+    private UserNotificationSeenStateDAO() {}
+    public static UserNotificationSeenStateDAO getInstance() { return INSTANCE; }
+
+    public long getSeenAt(Connection c, String login, String category) throws Exception {
+        try (PreparedStatement ps = c.prepareStatement("SELECT seen_at_ms FROM user_notification_seen_state WHERE owner_login=? AND category=?")) {
+            ps.setString(1, login); ps.setString(2, category);
+            try (ResultSet rs = ps.executeQuery()) { return rs.next() ? rs.getLong(1) : 0L; }
+        }
+    }
+
+    public long advance(Connection c, String login, String category, long seenAtMs, long signedAtMs, byte[] signedBlob) throws Exception {
+        String sql = """
+            INSERT INTO user_notification_seen_state(owner_login, category, seen_at_ms, signed_blob, signed_at_ms, updated_at_ms)
+            VALUES (?, ?, ?, ?, ?, ?)
+            ON CONFLICT(owner_login, category) DO UPDATE SET
+                seen_at_ms=EXCLUDED.seen_at_ms, signed_blob=EXCLUDED.signed_blob,
+                signed_at_ms=EXCLUDED.signed_at_ms, updated_at_ms=EXCLUDED.updated_at_ms
+            WHERE user_notification_seen_state.seen_at_ms < EXCLUDED.seen_at_ms
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, login); ps.setString(2, category); ps.setLong(3, seenAtMs);
+            ps.setBytes(4, signedBlob); ps.setLong(5, signedAtMs); ps.setLong(6, System.currentTimeMillis());
+            ps.executeUpdate();
+        }
+        return getSeenAt(c, login, category);
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/UserNotificationsStateDAO.java

@@ -0,0 +1,132 @@
+package shine.db.dao;
+
+import shine.db.DbController;
+import shine.db.entities.UserNotificationEntry;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Types;
+import java.util.ArrayList;
+import java.util.List;
+
+public final class UserNotificationsStateDAO {
+    private static volatile UserNotificationsStateDAO instance;
+    private final DbController db = DbController.getInstance();
+
+    private UserNotificationsStateDAO() {}
+
+    public static UserNotificationsStateDAO getInstance() {
+        if (instance == null) {
+            synchronized (UserNotificationsStateDAO.class) {
+                if (instance == null) instance = new UserNotificationsStateDAO();
+            }
+        }
+        return instance;
+    }
+
+    public int upsert(Connection c, UserNotificationEntry e) throws SQLException {
+        String sql = """
+            INSERT INTO user_notifications_state (
+                owner_login, notification_kind, created_at_ms, source_login, source_bch_name,
+                source_block_number, source_block_hash, target_login, target_bch_name,
+                target_block_number, target_block_hash, source_msg_sub_type, source_text
+            ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+            ON CONFLICT(owner_login, notification_kind, source_bch_name, source_block_number, source_block_hash) DO UPDATE SET
+                created_at_ms = EXCLUDED.created_at_ms,
+                source_login = EXCLUDED.source_login,
+                target_login = EXCLUDED.target_login,
+                target_bch_name = EXCLUDED.target_bch_name,
+                target_block_number = EXCLUDED.target_block_number,
+                target_block_hash = EXCLUDED.target_block_hash,
+                source_msg_sub_type = EXCLUDED.source_msg_sub_type,
+                source_text = EXCLUDED.source_text
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            int i = 1;
+            ps.setString(i++, e.getOwnerLogin());
+            ps.setString(i++, e.getNotificationKind());
+            ps.setLong(i++, e.getCreatedAtMs());
+            ps.setString(i++, e.getSourceLogin());
+            ps.setString(i++, e.getSourceBchName());
+            ps.setInt(i++, e.getSourceBlockNumber());
+            ps.setBytes(i++, e.getSourceBlockHash());
+            if (e.getTargetLogin() != null) ps.setString(i++, e.getTargetLogin()); else ps.setNull(i++, Types.VARCHAR);
+            if (e.getTargetBchName() != null) ps.setString(i++, e.getTargetBchName()); else ps.setNull(i++, Types.VARCHAR);
+            if (e.getTargetBlockNumber() != null) ps.setInt(i++, e.getTargetBlockNumber()); else ps.setNull(i++, Types.INTEGER);
+            if (e.getTargetBlockHash() != null) ps.setBytes(i++, e.getTargetBlockHash()); else ps.setNull(i++, Types.BINARY);
+            ps.setInt(i++, e.getSourceMsgSubType());
+            ps.setString(i++, e.getSourceText() == null ? "" : e.getSourceText());
+            return ps.executeUpdate();
+        }
+    }
+
+    public List<UserNotificationEntry> listByOwnerAndKind(Connection c, String ownerLogin, String kind, int limit) throws SQLException {
+        String sql = """
+            SELECT owner_login, notification_kind, created_at_ms, source_login, source_bch_name,
+                   source_block_number, source_block_hash, target_login, target_bch_name,
+                   target_block_number, target_block_hash, source_msg_sub_type, source_text
+            FROM user_notifications_state
+            WHERE owner_login = ? AND notification_kind = ?
+            ORDER BY created_at_ms DESC, source_block_number DESC
+            LIMIT ?
+            """;
+        List<UserNotificationEntry> out = new ArrayList<>();
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, ownerLogin);
+            ps.setString(2, kind);
+            ps.setInt(3, Math.max(1, limit));
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) out.add(mapRow(rs));
+            }
+        }
+        return out;
+    }
+
+    public List<UserNotificationEntry> listVisible(Connection c, String ownerLogin, String kind, long seenAtMs, long cutoffMs) throws SQLException {
+        String sql = """
+            SELECT owner_login, notification_kind, created_at_ms, source_login, source_bch_name,
+                   source_block_number, source_block_hash, target_login, target_bch_name,
+                   target_block_number, target_block_hash, source_msg_sub_type, source_text
+            FROM user_notifications_state
+            WHERE owner_login = ? AND notification_kind = ?
+              AND (created_at_ms > ? OR created_at_ms >= ?)
+            ORDER BY created_at_ms DESC, source_block_number DESC
+            """;
+        List<UserNotificationEntry> out = new ArrayList<>();
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, ownerLogin); ps.setString(2, kind); ps.setLong(3, Math.max(0, seenAtMs));
+            ps.setLong(4, Math.max(0, cutoffMs));
+            try (ResultSet rs = ps.executeQuery()) { while (rs.next()) out.add(mapRow(rs)); }
+        }
+        return out;
+    }
+
+    public long countUnseen(Connection c, String ownerLogin, String kind, long seenAtMs) throws SQLException {
+        String sql = "SELECT COUNT(*) FROM user_notifications_state WHERE owner_login = ? AND notification_kind = ? AND created_at_ms > ?";
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, ownerLogin); ps.setString(2, kind); ps.setLong(3, Math.max(0, seenAtMs));
+            try (ResultSet rs = ps.executeQuery()) { return rs.next() ? rs.getLong(1) : 0L; }
+        }
+    }
+
+    private static UserNotificationEntry mapRow(ResultSet rs) throws SQLException {
+        UserNotificationEntry e = new UserNotificationEntry();
+        e.setOwnerLogin(rs.getString("owner_login"));
+        e.setNotificationKind(rs.getString("notification_kind"));
+        e.setCreatedAtMs(rs.getLong("created_at_ms"));
+        e.setSourceLogin(rs.getString("source_login"));
+        e.setSourceBchName(rs.getString("source_bch_name"));
+        e.setSourceBlockNumber(rs.getInt("source_block_number"));
+        e.setSourceBlockHash(rs.getBytes("source_block_hash"));
+        e.setTargetLogin(rs.getString("target_login"));
+        e.setTargetBchName(rs.getString("target_bch_name"));
+        Object targetBlockNumber = rs.getObject("target_block_number");
+        e.setTargetBlockNumber(targetBlockNumber == null ? null : ((Number) targetBlockNumber).intValue());
+        e.setTargetBlockHash(rs.getBytes("target_block_hash"));
+        e.setSourceMsgSubType(rs.getInt("source_msg_sub_type"));
+        e.setSourceText(rs.getString("source_text"));
+        return e;
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/UserParamsDAO.java

@@ -1,6 +1,6 @@
 package shine.db.dao;
 
-import shine.db.SqliteDbController;
+import shine.db.DbController;
 import shine.db.entities.UserParamEntry;
 
 import java.sql.*;
@@ -21,7 +21,7 @@ import java.util.List;
 public final class UserParamsDAO {
 
     private static volatile UserParamsDAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
+    private final DbController db = DbController.getInstance();
 
     private UserParamsDAO() { }
 
@@ -55,6 +55,7 @@ public final class UserParamsDAO {
             WHERE users_params.time_ms < excluded.time_ms
             """;
 
+        int changed;
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             ps.setString(1, e.getLogin());
             ps.setString(2, e.getParam());
@@ -67,8 +68,12 @@ public final class UserParamsDAO {
             if (e.getSignature() != null) ps.setString(6, e.getSignature());
             else ps.setNull(6, Types.VARCHAR);
 
-            return ps.executeUpdate();
+            changed = ps.executeUpdate();
         }
+        if (changed > 0 && affectsFastProfile(e.getParam())) {
+            refreshFastProfileAndDerivedState(c, e.getLogin(), e.getParam());
+        }
+        return changed;
     }
 
     public int upsertIfNewer(UserParamEntry e) throws SQLException {
@@ -77,6 +82,32 @@ public final class UserParamsDAO {
         }
     }
 
+
+    private static boolean affectsFastProfile(String param) {
+        if (param == null) return false;
+        return switch (param) {
+            case "first_name", "last_name", "ava", "account_role", "shine" -> true;
+            default -> false;
+        };
+    }
+
+    private static void refreshFastProfileAndDerivedState(Connection c, String login, String param) throws SQLException {
+        try (PreparedStatement ps = c.prepareStatement("SELECT shine_refresh_user_profile(?)")) {
+            ps.setString(1, login);
+            ps.execute();
+        }
+        if ("account_role".equals(param) || "shine".equals(param)) {
+            try (PreparedStatement ps = c.prepareStatement("SELECT shine_refresh_related_user_stats(?)")) {
+                ps.setString(1, login);
+                ps.execute();
+            }
+            try (PreparedStatement ps = c.prepareStatement("SELECT shine_refresh_message_qualified_likes_for_actor(?)")) {
+                ps.setString(1, login);
+                ps.execute();
+            }
+        }
+    }
+
     // -------------------- SELECT --------------------
 
     public UserParamEntry getByLoginAndParam(Connection c, String login, String param) throws SQLException {
@@ -89,7 +120,7 @@ public final class UserParamsDAO {
                 client_key,
                 signature
             FROM users_params
-            WHERE login = ? COLLATE NOCASE AND param = ?
+            WHERE LOWER(login) = LOWER(?) AND param = ?
             LIMIT 1
             """;
 
@@ -120,7 +151,7 @@ public final class UserParamsDAO {
                 client_key,
                 signature
             FROM users_params
-            WHERE login = ? COLLATE NOCASE
+            WHERE LOWER(login) = LOWER(?)
             ORDER BY time_ms DESC
             """;
 

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/UserProfileStateDAO.java

@@ -0,0 +1,142 @@
+package shine.db.dao;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+
+import shine.db.MsgSubType;
+
+/** Fast denormalized projection for user cards shown in dialogs/relations/profile lists. */
+public final class UserProfileStateDAO {
+    private static volatile UserProfileStateDAO instance;
+    private UserProfileStateDAO() {}
+    public static UserProfileStateDAO getInstance() {
+        if (instance == null) synchronized (UserProfileStateDAO.class) {
+            if (instance == null) instance = new UserProfileStateDAO();
+        }
+        return instance;
+    }
+
+    public ProfileCard get(Connection c, String login) throws SQLException {
+        try (PreparedStatement ps = c.prepareStatement("""
+            SELECT login, first_name, last_name, ava_ar, account_role, shine_status
+            FROM user_profile_state WHERE LOWER(login)=LOWER(?) LIMIT 1
+            """)) {
+            ps.setString(1, login);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (!rs.next()) return new ProfileCard(login, "", "", "", null, null);
+                return map(rs);
+            }
+        }
+    }
+
+
+    /**
+     * Effective outgoing social relation with priority close_friend > friend > contact > none.
+     *
+     * Use the canonical relation lookup instead of comparing only connections_state.to_login:
+     * older/current blocks may address a user by blockchain name, so a direct to_login-only
+     * query can incorrectly report "none" even when ListContacts/Connections sees the relation.
+     */
+    public String getEffectiveRelationType(Connection c, String ownerLogin, String targetLogin) throws SQLException {
+        if (ownerLogin == null || ownerLogin.isBlank() || targetLogin == null || targetLogin.isBlank()) return "none";
+        ConnectionsStateDAO relations = ConnectionsStateDAO.getInstance();
+        if (relations.hasOutgoingByRelTypeCanonical(c, ownerLogin, targetLogin, MsgSubType.CONNECTION_CLOSE_FRIEND)) {
+            return "close_friend";
+        }
+        if (relations.hasOutgoingByRelTypeCanonical(c, ownerLogin, targetLogin, MsgSubType.CONNECTION_FRIEND)) {
+            return "friend";
+        }
+        if (relations.hasOutgoingByRelTypeCanonical(c, ownerLogin, targetLogin, MsgSubType.CONNECTION_CONTACT)) {
+            return "contact";
+        }
+        return "none";
+    }
+
+    public List<RelationCard> listRelations(Connection c, String ownerLogin, String listType, int limit, int offset) throws SQLException {
+        int safeLimit = Math.max(1, Math.min(limit <= 0 ? 100 : limit, 500));
+        int safeOffset = Math.max(0, offset);
+        String where = switch (String.valueOf(listType)) {
+            case "friends" -> "LOWER(cs.login)=LOWER(?) AND cs.rel_type=14 AND NOT EXISTS (SELECT 1 FROM connections_state cf WHERE LOWER(cf.login)=LOWER(cs.login) AND LOWER(cf.to_login)=LOWER(cs.to_login) AND cf.rel_type=10)";
+            case "close_friends" -> "LOWER(cs.login)=LOWER(?) AND cs.rel_type=10";
+            case "primary_received" -> "LOWER(cs.to_login)=LOWER(?) AND cs.rel_type=80 AND shine_is_primary(cs.login) AND shine_target_accepts_primary_confirmation(cs.to_login)";
+            case "primary_given" -> "LOWER(cs.login)=LOWER(?) AND cs.rel_type=80 AND shine_is_primary(cs.login) AND shine_target_accepts_primary_confirmation(cs.to_login)";
+            case "shine_received" -> "LOWER(cs.to_login)=LOWER(?) AND cs.rel_type=70 AND shine_is_primary(cs.login) AND shine_is_shining(cs.login) AND shine_target_accepts_shine_confirmation(cs.to_login)";
+            case "shine_given" -> "LOWER(cs.login)=LOWER(?) AND cs.rel_type=70 AND shine_is_primary(cs.login) AND shine_is_shining(cs.login) AND shine_target_accepts_shine_confirmation(cs.to_login)";
+            default -> throw new IllegalArgumentException("Unsupported listType: " + listType);
+        };
+        boolean received = "primary_received".equals(listType) || "shine_received".equals(listType);
+        String personExpr = received ? "cs.login" : "cs.to_login";
+        String sql = """
+            SELECT DISTINCT ON (LOWER(%s))
+                   %s AS person_login,
+                   COALESCE(up.first_name,'') AS first_name,
+                   COALESCE(up.last_name,'') AS last_name,
+                   COALESCE(up.ava_ar,'') AS ava_ar,
+                   up.account_role, up.shine_status,
+                   EXISTS(SELECT 1 FROM connections_state x WHERE LOWER(x.login)=LOWER(?) AND LOWER(x.to_login)=LOWER(%s) AND x.rel_type=80
+                          AND shine_is_primary(x.login) AND shine_target_accepts_primary_confirmation(x.to_login)) AS primary_confirmed,
+                   EXISTS(SELECT 1 FROM connections_state x WHERE LOWER(x.login)=LOWER(?) AND LOWER(x.to_login)=LOWER(%s) AND x.rel_type=70
+                          AND shine_is_primary(x.login) AND shine_is_shining(x.login) AND shine_target_accepts_shine_confirmation(x.to_login)) AS shine_confirmed,
+                   CASE
+                     WHEN EXISTS(SELECT 1 FROM connections_state x WHERE LOWER(x.login)=LOWER(?) AND LOWER(x.to_login)=LOWER(%s) AND x.rel_type=10) THEN 'close_friend'
+                     WHEN EXISTS(SELECT 1 FROM connections_state x WHERE LOWER(x.login)=LOWER(?) AND LOWER(x.to_login)=LOWER(%s) AND x.rel_type=14) THEN 'friend'
+                     WHEN EXISTS(SELECT 1 FROM connections_state x WHERE LOWER(x.login)=LOWER(?) AND LOWER(x.to_login)=LOWER(%s) AND x.rel_type=20) THEN 'contact'
+                     ELSE 'none' END AS relation_type,
+                   COALESCE(us.primary_confirmations_received_count,0) AS primary_confirmations_count,
+                   COALESCE(us.shine_confirmations_received_count,0) AS shine_confirmations_count
+            FROM connections_state cs
+            LEFT JOIN user_profile_state up ON LOWER(up.login)=LOWER(%s)
+            LEFT JOIN user_stats_state us ON LOWER(us.login)=LOWER(%s)
+            WHERE %s
+            ORDER BY LOWER(%s), %s
+            LIMIT ? OFFSET ?
+            """.formatted(personExpr, personExpr, personExpr, personExpr, personExpr, personExpr, personExpr, personExpr, personExpr, where, personExpr, personExpr);
+        List<RelationCard> out = new ArrayList<>();
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            int i=1;
+            ps.setString(i++, ownerLogin); ps.setString(i++, ownerLogin); ps.setString(i++, ownerLogin); ps.setString(i++, ownerLogin); ps.setString(i++, ownerLogin);
+            ps.setString(i++, ownerLogin);
+            ps.setInt(i++, safeLimit); ps.setInt(i, safeOffset);
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) out.add(new RelationCard(
+                    rs.getString("person_login"), rs.getString("first_name"), rs.getString("last_name"), rs.getString("ava_ar"),
+                    rs.getString("account_role"), rs.getString("shine_status"), rs.getBoolean("primary_confirmed"), rs.getBoolean("shine_confirmed"),
+                    rs.getString("relation_type"), rs.getInt("primary_confirmations_count"), rs.getInt("shine_confirmations_count")
+                ));
+            }
+        }
+        return out;
+    }
+
+    public List<ChannelCard> listPublicChannels(Connection c, String login, String mode, int limit, int offset) throws SQLException {
+        int safeLimit=Math.max(1,Math.min(limit<=0?100:limit,500)), safeOffset=Math.max(0,offset);
+        String sql;
+        if ("owned".equals(mode)) {
+            sql="""
+                SELECT cn.owner_login, cn.slug, cn.display_name, cn.ava_ar, cn.owner_bch_name, cn.channel_root_block_number, encode(cn.channel_root_block_hash,'hex') root_hash
+                FROM channel_names_state cn WHERE LOWER(cn.owner_login)=LOWER(?) AND cn.channel_type_code=1
+                ORDER BY cn.display_name, cn.slug LIMIT ? OFFSET ?
+                """;
+        } else if ("following".equals(mode)) {
+            sql="""
+                SELECT DISTINCT cn.owner_login, cn.slug, cn.display_name, cn.ava_ar, cn.owner_bch_name, cn.channel_root_block_number, encode(cn.channel_root_block_hash,'hex') root_hash
+                FROM connections_state cs JOIN channel_names_state cn ON cn.owner_bch_name=cs.to_bch_name AND cn.channel_root_block_number=cs.to_block_number AND cn.channel_root_block_hash=cs.to_block_hash
+                WHERE LOWER(cs.login)=LOWER(?) AND cs.rel_type=30 AND cn.channel_type_code=1
+                ORDER BY cn.display_name, cn.slug LIMIT ? OFFSET ?
+                """;
+        } else throw new IllegalArgumentException("Unsupported channel mode: "+mode);
+        List<ChannelCard> out=new ArrayList<>();
+        try(PreparedStatement ps=c.prepareStatement(sql)){ ps.setString(1,login);ps.setInt(2,safeLimit);ps.setInt(3,safeOffset);
+            try(ResultSet rs=ps.executeQuery()){while(rs.next())out.add(new ChannelCard(rs.getString("owner_login"),rs.getString("slug"),rs.getString("display_name"),rs.getString("ava_ar"),rs.getString("owner_bch_name"),rs.getInt("channel_root_block_number"),rs.getString("root_hash")));}}
+        return out;
+    }
+
+    private static ProfileCard map(ResultSet rs)throws SQLException{return new ProfileCard(rs.getString("login"),rs.getString("first_name"),rs.getString("last_name"),rs.getString("ava_ar"),rs.getString("account_role"),rs.getString("shine_status"));}
+    public record ProfileCard(String login,String firstName,String lastName,String avatarAr,String accountRole,String shineStatus){}
+    public record RelationCard(String login,String firstName,String lastName,String avatarAr,String accountRole,String shineStatus,boolean primaryConfirmed,boolean shineConfirmed,String relationType,int primaryConfirmationsCount,int shineConfirmationsCount){}
+    public record ChannelCard(String ownerLogin,String slug,String displayName,String avatarAr,String ownerBlockchainName,int rootBlockNumber,String rootBlockHashHex){}
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/UserSettingsDAO.java

@@ -0,0 +1,124 @@
+package shine.db.dao;
+
+import shine.db.DbController;
+import shine.db.entities.UserSettingEntry;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Types;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Локальное хранение подписанных пользовательских настроек.
+ * Запись уникальна по login + setting_type + setting_key и обновляется только
+ * более новым time_ms. Межсерверной репликации настроек нет.
+ */
+public final class UserSettingsDAO {
+    private static volatile UserSettingsDAO instance;
+    private final DbController db = DbController.getInstance();
+
+    private UserSettingsDAO() {}
+
+    public static UserSettingsDAO getInstance() {
+        if (instance == null) {
+            synchronized (UserSettingsDAO.class) {
+                if (instance == null) instance = new UserSettingsDAO();
+            }
+        }
+        return instance;
+    }
+
+    public int upsertIfNewer(Connection c, UserSettingEntry e) throws SQLException {
+        String sql = """
+            INSERT INTO user_settings (
+                login, setting_type, setting_key, time_ms,
+                value_text, value_num, client_key, signature
+            ) VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+            ON CONFLICT (login, setting_type, setting_key)
+            DO UPDATE SET
+                time_ms    = EXCLUDED.time_ms,
+                value_text = EXCLUDED.value_text,
+                value_num  = EXCLUDED.value_num,
+                client_key = EXCLUDED.client_key,
+                signature  = EXCLUDED.signature
+            WHERE user_settings.time_ms < EXCLUDED.time_ms
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, e.getLogin());
+            ps.setInt(2, e.getSettingType());
+            ps.setString(3, e.getSettingKey());
+            ps.setLong(4, e.getTimeMs());
+            ps.setString(5, e.getValueText() == null ? "" : e.getValueText());
+            ps.setLong(6, e.getValueNum());
+            if (e.getClientKey() == null || e.getClientKey().isBlank()) ps.setNull(7, Types.VARCHAR);
+            else ps.setString(7, e.getClientKey());
+            if (e.getSignature() == null || e.getSignature().isBlank()) ps.setNull(8, Types.VARCHAR);
+            else ps.setString(8, e.getSignature());
+            return ps.executeUpdate();
+        }
+    }
+
+    public UserSettingEntry getByLoginTypeKey(
+            Connection c, String login, int settingType, String settingKey
+    ) throws SQLException {
+        String sql = """
+            SELECT login, setting_type, setting_key, time_ms,
+                   value_text, value_num, client_key, signature
+            FROM user_settings
+            WHERE LOWER(login) = LOWER(?) AND setting_type = ? AND setting_key = ?
+            LIMIT 1
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, login);
+            ps.setInt(2, settingType);
+            ps.setString(3, settingKey);
+            try (ResultSet rs = ps.executeQuery()) {
+                return rs.next() ? mapRow(rs) : null;
+            }
+        }
+    }
+
+    public List<UserSettingEntry> getByLogin(Connection c, String login) throws SQLException {
+        String sql = """
+            SELECT login, setting_type, setting_key, time_ms,
+                   value_text, value_num, client_key, signature
+            FROM user_settings
+            WHERE LOWER(login) = LOWER(?)
+            ORDER BY time_ms DESC, setting_type ASC, setting_key ASC
+            """;
+        List<UserSettingEntry> out = new ArrayList<>();
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, login);
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) out.add(mapRow(rs));
+            }
+        }
+        return out;
+    }
+
+    public List<UserSettingEntry> getByLogin(String login) throws SQLException {
+        try (Connection c = db.getConnection()) {
+            return getByLogin(c, login);
+        }
+    }
+
+    private static UserSettingEntry mapRow(ResultSet rs) throws SQLException {
+        UserSettingEntry e = new UserSettingEntry();
+        e.setLogin(rs.getString("login"));
+        e.setSettingType(rs.getInt("setting_type"));
+        e.setSettingKey(rs.getString("setting_key"));
+        e.setTimeMs(rs.getLong("time_ms"));
+        e.setValueText(rs.getString("value_text"));
+        e.setValueNum(rs.getLong("value_num"));
+        String clientKey = rs.getString("client_key");
+        if (rs.wasNull()) clientKey = null;
+        e.setClientKey(clientKey);
+        String signature = rs.getString("signature");
+        if (rs.wasNull()) signature = null;
+        e.setSignature(signature);
+        return e;
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/UserSettingsSyncPeerStateDAO.java

@@ -0,0 +1,152 @@
+package shine.db.dao;
+
+import shine.db.DbController;
+import shine.db.entities.UserSettingsSyncPeerStateEntry;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+public final class UserSettingsSyncPeerStateDAO {
+
+    private static volatile UserSettingsSyncPeerStateDAO instance;
+    private final DbController db = DbController.getInstance();
+
+    private UserSettingsSyncPeerStateDAO() {}
+
+    public static UserSettingsSyncPeerStateDAO getInstance() {
+        if (instance == null) {
+            synchronized (UserSettingsSyncPeerStateDAO.class) {
+                if (instance == null) instance = new UserSettingsSyncPeerStateDAO();
+            }
+        }
+        return instance;
+    }
+
+    public UserSettingsSyncPeerStateEntry getOrCreate(Connection c, String ownerLogin, String remoteServerLogin, String remoteServerUrl) throws SQLException {
+        UserSettingsSyncPeerStateEntry existing = get(c, ownerLogin, remoteServerLogin);
+        if (existing != null) return existing;
+        long nowMs = System.currentTimeMillis();
+        String sql = """
+            INSERT INTO user_settings_sync_peer_state (
+                owner_login, remote_server_login, remote_server_url,
+                cursor_time_ms, cursor_setting_key, bootstrap_completed,
+                last_sync_at_ms, last_error, updated_at_ms
+            ) VALUES (?, ?, ?, 0, '', FALSE, NULL, NULL, ?)
+            ON CONFLICT (owner_login, remote_server_login) DO UPDATE SET
+                remote_server_url = EXCLUDED.remote_server_url,
+                updated_at_ms = EXCLUDED.updated_at_ms
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, ownerLogin);
+            ps.setString(2, remoteServerLogin);
+            ps.setString(3, remoteServerUrl);
+            ps.setLong(4, nowMs);
+            ps.executeUpdate();
+        }
+        return get(c, ownerLogin, remoteServerLogin);
+    }
+
+    public UserSettingsSyncPeerStateEntry get(Connection c, String ownerLogin, String remoteServerLogin) throws SQLException {
+        String sql = """
+            SELECT owner_login, remote_server_login, remote_server_url, cursor_time_ms, cursor_setting_key,
+                   bootstrap_completed, last_sync_at_ms, last_error, updated_at_ms
+            FROM user_settings_sync_peer_state
+            WHERE LOWER(owner_login) = LOWER(?) AND LOWER(remote_server_login) = LOWER(?)
+            LIMIT 1
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, ownerLogin);
+            ps.setString(2, remoteServerLogin);
+            try (ResultSet rs = ps.executeQuery()) {
+                return rs.next() ? mapRow(rs) : null;
+            }
+        }
+    }
+
+    public int updateSuccess(String ownerLogin, String remoteServerLogin, String remoteServerUrl, long cursorTimeMs, String cursorSettingKey, boolean bootstrapCompleted) throws SQLException {
+        try (Connection c = db.getConnection()) {
+            String sql = """
+                INSERT INTO user_settings_sync_peer_state (
+                    owner_login, remote_server_login, remote_server_url,
+                    cursor_time_ms, cursor_setting_key, bootstrap_completed,
+                    last_sync_at_ms, last_error, updated_at_ms
+                ) VALUES (?, ?, ?, ?, ?, ?, ?, NULL, ?)
+                ON CONFLICT (owner_login, remote_server_login) DO UPDATE SET
+                    remote_server_url = EXCLUDED.remote_server_url,
+                    cursor_time_ms = EXCLUDED.cursor_time_ms,
+                    cursor_setting_key = EXCLUDED.cursor_setting_key,
+                    bootstrap_completed = EXCLUDED.bootstrap_completed,
+                    last_sync_at_ms = EXCLUDED.last_sync_at_ms,
+                    last_error = NULL,
+                    updated_at_ms = EXCLUDED.updated_at_ms
+                """;
+            try (PreparedStatement ps = c.prepareStatement(sql)) {
+                long nowMs = System.currentTimeMillis();
+                ps.setString(1, ownerLogin);
+                ps.setString(2, remoteServerLogin);
+                ps.setString(3, remoteServerUrl);
+                ps.setLong(4, Math.max(0L, cursorTimeMs));
+                ps.setString(5, cursorSettingKey == null ? "" : cursorSettingKey);
+                ps.setBoolean(6, bootstrapCompleted);
+                ps.setLong(7, nowMs);
+                ps.setLong(8, nowMs);
+                return ps.executeUpdate();
+            }
+        }
+    }
+
+    public int updateError(String ownerLogin, String remoteServerLogin, String remoteServerUrl, String error) throws SQLException {
+        try (Connection c = db.getConnection()) {
+            String sql = """
+                INSERT INTO user_settings_sync_peer_state (
+                    owner_login, remote_server_login, remote_server_url,
+                    cursor_time_ms, cursor_setting_key, bootstrap_completed,
+                    last_sync_at_ms, last_error, updated_at_ms
+                ) VALUES (?, ?, ?, 0, '', FALSE, NULL, ?, ?)
+                ON CONFLICT (owner_login, remote_server_login) DO UPDATE SET
+                    remote_server_url = EXCLUDED.remote_server_url,
+                    last_error = EXCLUDED.last_error,
+                    updated_at_ms = EXCLUDED.updated_at_ms
+                """;
+            try (PreparedStatement ps = c.prepareStatement(sql)) {
+                long nowMs = System.currentTimeMillis();
+                ps.setString(1, ownerLogin);
+                ps.setString(2, remoteServerLogin);
+                ps.setString(3, remoteServerUrl);
+                ps.setString(4, error);
+                ps.setLong(5, nowMs);
+                return ps.executeUpdate();
+            }
+        }
+    }
+
+    public int clearBootstrap(String ownerLogin, String remoteServerLogin, String remoteServerUrl) throws SQLException {
+        return updateSuccess(ownerLogin, remoteServerLogin, remoteServerUrl, 0L, "", false);
+    }
+
+    public int deleteAllForOwner(String ownerLogin) throws SQLException {
+        try (Connection c = db.getConnection()) {
+            try (PreparedStatement ps = c.prepareStatement("DELETE FROM user_settings_sync_peer_state WHERE LOWER(owner_login) = LOWER(?)")) {
+                ps.setString(1, ownerLogin);
+                return ps.executeUpdate();
+            }
+        }
+    }
+
+    private static UserSettingsSyncPeerStateEntry mapRow(ResultSet rs) throws SQLException {
+        UserSettingsSyncPeerStateEntry e = new UserSettingsSyncPeerStateEntry();
+        e.setOwnerLogin(rs.getString("owner_login"));
+        e.setRemoteServerLogin(rs.getString("remote_server_login"));
+        e.setRemoteServerUrl(rs.getString("remote_server_url"));
+        e.setCursorTimeMs(rs.getLong("cursor_time_ms"));
+        e.setCursorSettingKey(rs.getString("cursor_setting_key"));
+        e.setBootstrapCompleted(rs.getBoolean("bootstrap_completed"));
+        long lastSyncAtMs = rs.getLong("last_sync_at_ms");
+        e.setLastSyncAtMs(rs.wasNull() ? null : lastSyncAtMs);
+        e.setLastError(rs.getString("last_error"));
+        e.setUpdatedAtMs(rs.getLong("updated_at_ms"));
+        return e;
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/ChannelNameStateEntry.java

@@ -13,6 +13,10 @@ public class ChannelNameStateEntry {
     private int channelRootBlockNumber;
     private byte[] channelRootBlockHash;
     private long createdAtMs;
+    private String avaAr;
+    private String avaSha256;
+    private long avaSize;
+    private long metaUpdatedAtMs;
 
     public String getSlug() {
         return slug;
@@ -93,4 +97,36 @@ public class ChannelNameStateEntry {
     public void setCreatedAtMs(long createdAtMs) {
         this.createdAtMs = createdAtMs;
     }
+
+    public String getAvaAr() {
+        return avaAr;
+    }
+
+    public void setAvaAr(String avaAr) {
+        this.avaAr = avaAr;
+    }
+
+    public String getAvaSha256() {
+        return avaSha256;
+    }
+
+    public void setAvaSha256(String avaSha256) {
+        this.avaSha256 = avaSha256;
+    }
+
+    public long getAvaSize() {
+        return avaSize;
+    }
+
+    public void setAvaSize(long avaSize) {
+        this.avaSize = avaSize;
+    }
+
+    public long getMetaUpdatedAtMs() {
+        return metaUpdatedAtMs;
+    }
+
+    public void setMetaUpdatedAtMs(long metaUpdatedAtMs) {
+        this.metaUpdatedAtMs = metaUpdatedAtMs;
+    }
 }

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/CurrentUserEntry.java

@@ -3,18 +3,19 @@ package shine.db.entities;
 import java.util.Base64;
 
 /**
- * SolanaUserEntry — локальная запись пользователя из Solana.
+ * CurrentUserEntry — локальная runtime-проекция текущего состояния пользователя.
  *
- * Таблица: solana_users
+ * Источник:
+ *  - solana_user_pda_current
  *
  * Поля:
- *  - login           — PRIMARY KEY (TEXT) (case-insensitive на уровне COLLATE NOCASE)
+ *  - login           — PRIMARY KEY (TEXT)
  *  - blockchain_name — TEXT NOT NULL
  *  - solana_key      — TEXT NOT NULL
  *  - blockchain_key  — TEXT NOT NULL
  *  - client_key      — TEXT NOT NULL
  */
-public class SolanaUserEntry {
+public class CurrentUserEntry {
 
     private String login;
 
@@ -29,9 +30,9 @@ public class SolanaUserEntry {
     /** Ключ устройства (публичный ключ устройства) */
     private String clientKey;
 
-    public SolanaUserEntry() {}
+    public CurrentUserEntry() {}
 
-    public SolanaUserEntry(String login,
+    public CurrentUserEntry(String login,
                            String blockchainName,
                            String solanaKey,
                            String blockchainKey,
@@ -81,4 +82,4 @@ public class SolanaUserEntry {
 
         return null;
     }
-}
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/DirectMessageEntry.java

@@ -1,24 +0,0 @@
-package shine.db.entities;
-
-public class DirectMessageEntry {
-    private String messageId;
-    private String fromLogin;
-    private String toLogin;
-    private String text;
-    private long createdAtMs;
-
-    public String getMessageId() { return messageId; }
-    public void setMessageId(String messageId) { this.messageId = messageId; }
-
-    public String getFromLogin() { return fromLogin; }
-    public void setFromLogin(String fromLogin) { this.fromLogin = fromLogin; }
-
-    public String getToLogin() { return toLogin; }
-    public void setToLogin(String toLogin) { this.toLogin = toLogin; }
-
-    public String getText() { return text; }
-    public void setText(String text) { this.text = text; }
-
-    public long getCreatedAtMs() { return createdAtMs; }
-    public void setCreatedAtMs(long createdAtMs) { this.createdAtMs = createdAtMs; }
-}

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/DmDeliveryStateEntry.java

@@ -0,0 +1,84 @@
+package shine.db.entities;
+
+public class DmDeliveryStateEntry {
+    public static final int ACCEPTED = 0;
+    public static final int DELIVERED = 1;
+    public static final int FAILED = 3;
+
+    // Совместимость со строками БД, созданными ранней экспериментальной миграцией.
+    public static final int PENDING_NONE = ACCEPTED;
+    public static final int DELIVERED_ONE = DELIVERED;
+    public static final int DELIVERED_ALL = 2;
+    public static final int FAILED_FINAL = FAILED;
+
+    private String outgoingMessageKey;
+    private String eventId;
+    private String baseKey;
+    private String fromLogin;
+    private String toLogin;
+    private String incomingMessageKey;
+    private long createdAtMs;
+    private long deliveryExpiresAtMs;
+    private int deliveryState;
+    private String deliveredServerLogin;
+    private String recipientRoutesHash;
+    private int attemptIndex;
+    private Long nextAttemptAtMs;
+    private Long lastAttemptAtMs;
+    private String lastError;
+    private long updatedAtMs;
+
+    public String getOutgoingMessageKey() { return outgoingMessageKey; }
+    public void setOutgoingMessageKey(String value) { this.outgoingMessageKey = value; }
+    public String getEventId() { return eventId; }
+    public void setEventId(String value) { this.eventId = value; }
+    public String getBaseKey() { return baseKey; }
+    public void setBaseKey(String value) { this.baseKey = value; }
+    public String getFromLogin() { return fromLogin; }
+    public void setFromLogin(String value) { this.fromLogin = value; }
+    public String getToLogin() { return toLogin; }
+    public void setToLogin(String value) { this.toLogin = value; }
+    public String getIncomingMessageKey() { return incomingMessageKey; }
+    public void setIncomingMessageKey(String value) { this.incomingMessageKey = value; }
+    public long getCreatedAtMs() { return createdAtMs; }
+    public void setCreatedAtMs(long value) { this.createdAtMs = value; }
+    public long getDeliveryExpiresAtMs() { return deliveryExpiresAtMs; }
+    public void setDeliveryExpiresAtMs(long value) { this.deliveryExpiresAtMs = value; }
+    public int getDeliveryState() { return deliveryState; }
+    public void setDeliveryState(int value) { this.deliveryState = value; }
+    public String getDeliveredServerLogin() { return deliveredServerLogin; }
+    public void setDeliveredServerLogin(String value) { this.deliveredServerLogin = value; }
+    public String getRecipientRoutesHash() { return recipientRoutesHash; }
+    public void setRecipientRoutesHash(String value) { this.recipientRoutesHash = value; }
+    public int getAttemptIndex() { return attemptIndex; }
+    public void setAttemptIndex(int value) { this.attemptIndex = value; }
+    public Long getNextAttemptAtMs() { return nextAttemptAtMs; }
+    public void setNextAttemptAtMs(Long value) { this.nextAttemptAtMs = value; }
+    public Long getLastAttemptAtMs() { return lastAttemptAtMs; }
+    public void setLastAttemptAtMs(Long value) { this.lastAttemptAtMs = value; }
+    public String getLastError() { return lastError; }
+    public void setLastError(String value) { this.lastError = value; }
+    public long getUpdatedAtMs() { return updatedAtMs; }
+    public void setUpdatedAtMs(long value) { this.updatedAtMs = value; }
+
+    public String deliveryStateCode() {
+        return switch (deliveryState) {
+            case DELIVERED_ONE, DELIVERED_ALL -> "delivered";
+            case FAILED_FINAL -> "failed";
+            default -> "accepted";
+        };
+    }
+
+    public static int parseStateCode(String value) {
+        if (value == null) return ACCEPTED;
+        return switch (value.trim().toLowerCase()) {
+            case "delivered", "delivered_one", "delivered_all" -> DELIVERED;
+            case "failed", "failed_final" -> FAILED;
+            default -> ACCEPTED;
+        };
+    }
+
+    public boolean isDelivered() {
+        return deliveryState == DELIVERED_ONE || deliveryState == DELIVERED_ALL;
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/DmSyncOutboxEntry.java

@@ -0,0 +1,26 @@
+package shine.db.entities;
+
+public class DmSyncOutboxEntry {
+    private String ownerLogin;
+    private String primaryMessageKey;
+    private String eventId;
+    private String secondaryMessageKey;
+    private boolean synced;
+    private long createdAtMs;
+    private long updatedAtMs;
+
+    public String getOwnerLogin() { return ownerLogin; }
+    public void setOwnerLogin(String value) { this.ownerLogin = value; }
+    public String getPrimaryMessageKey() { return primaryMessageKey; }
+    public void setPrimaryMessageKey(String value) { this.primaryMessageKey = value; }
+    public String getEventId() { return eventId; }
+    public void setEventId(String value) { this.eventId = value; }
+    public String getSecondaryMessageKey() { return secondaryMessageKey; }
+    public void setSecondaryMessageKey(String value) { this.secondaryMessageKey = value; }
+    public boolean isSynced() { return synced; }
+    public void setSynced(boolean value) { this.synced = value; }
+    public long getCreatedAtMs() { return createdAtMs; }
+    public void setCreatedAtMs(long value) { this.createdAtMs = value; }
+    public long getUpdatedAtMs() { return updatedAtMs; }
+    public void setUpdatedAtMs(long value) { this.updatedAtMs = value; }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/DmSyncPeerStateEntry.java

@@ -0,0 +1,32 @@
+package shine.db.entities;
+
+public class DmSyncPeerStateEntry {
+    private String ownerLogin;
+    private String remoteServerLogin;
+    private String remoteServerUrl;
+    private long cursorStoredAtMs;
+    private String cursorMessageKey;
+    private boolean bootstrapCompleted;
+    private Long lastSyncAtMs;
+    private String lastError;
+    private long updatedAtMs;
+
+    public String getOwnerLogin() { return ownerLogin; }
+    public void setOwnerLogin(String ownerLogin) { this.ownerLogin = ownerLogin; }
+    public String getRemoteServerLogin() { return remoteServerLogin; }
+    public void setRemoteServerLogin(String remoteServerLogin) { this.remoteServerLogin = remoteServerLogin; }
+    public String getRemoteServerUrl() { return remoteServerUrl; }
+    public void setRemoteServerUrl(String remoteServerUrl) { this.remoteServerUrl = remoteServerUrl; }
+    public long getCursorStoredAtMs() { return cursorStoredAtMs; }
+    public void setCursorStoredAtMs(long cursorStoredAtMs) { this.cursorStoredAtMs = cursorStoredAtMs; }
+    public String getCursorMessageKey() { return cursorMessageKey; }
+    public void setCursorMessageKey(String cursorMessageKey) { this.cursorMessageKey = cursorMessageKey; }
+    public boolean isBootstrapCompleted() { return bootstrapCompleted; }
+    public void setBootstrapCompleted(boolean bootstrapCompleted) { this.bootstrapCompleted = bootstrapCompleted; }
+    public Long getLastSyncAtMs() { return lastSyncAtMs; }
+    public void setLastSyncAtMs(Long lastSyncAtMs) { this.lastSyncAtMs = lastSyncAtMs; }
+    public String getLastError() { return lastError; }
+    public void setLastError(String lastError) { this.lastError = lastError; }
+    public long getUpdatedAtMs() { return updatedAtMs; }
+    public void setUpdatedAtMs(long updatedAtMs) { this.updatedAtMs = updatedAtMs; }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/SignedDirectMessageHistoryEntry.java

@@ -1,35 +0,0 @@
-package shine.db.entities;
-
-public class SignedDirectMessageHistoryEntry {
-    private String messageId;
-    private String fromLogin;
-    private String toLogin;
-    private int targetMode;
-    private String targetSessionId;
-    private int messageType;
-    private long timeMs;
-    private long nonce;
-    private byte[] rawPacket;
-    private long createdAtMs;
-
-    public String getMessageId() { return messageId; }
-    public void setMessageId(String messageId) { this.messageId = messageId; }
-    public String getFromLogin() { return fromLogin; }
-    public void setFromLogin(String fromLogin) { this.fromLogin = fromLogin; }
-    public String getToLogin() { return toLogin; }
-    public void setToLogin(String toLogin) { this.toLogin = toLogin; }
-    public int getTargetMode() { return targetMode; }
-    public void setTargetMode(int targetMode) { this.targetMode = targetMode; }
-    public String getTargetSessionId() { return targetSessionId; }
-    public void setTargetSessionId(String targetSessionId) { this.targetSessionId = targetSessionId; }
-    public int getMessageType() { return messageType; }
-    public void setMessageType(int messageType) { this.messageType = messageType; }
-    public long getTimeMs() { return timeMs; }
-    public void setTimeMs(long timeMs) { this.timeMs = timeMs; }
-    public long getNonce() { return nonce; }
-    public void setNonce(long nonce) { this.nonce = nonce; }
-    public byte[] getRawPacket() { return rawPacket; }
-    public void setRawPacket(byte[] rawPacket) { this.rawPacket = rawPacket; }
-    public long getCreatedAtMs() { return createdAtMs; }
-    public void setCreatedAtMs(long createdAtMs) { this.createdAtMs = createdAtMs; }
-}

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/SignedMessageEntry.java

@@ -1,6 +1,6 @@
 package shine.db.entities;
 
-public class SignedMessageV2Entry {
+public class SignedMessageEntry {
     private String messageKey;
     private String baseKey;
     private String targetLogin;

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/SolanaUserPdaCurrentEntry.java

@@ -0,0 +1,46 @@
+package shine.db.entities;
+
+/**
+ * Минимальный срез текущей записи пользователя из PostgreSQL sync-таблицы.
+ *
+ * Источник: solana_user_pda_current
+ */
+public final class SolanaUserPdaCurrentEntry {
+
+    private String login;
+    private String blockchainName;
+    private String blockchainKey;
+    private long paidLimitBytes;
+
+    public String getLogin() {
+        return login;
+    }
+
+    public void setLogin(String login) {
+        this.login = login;
+    }
+
+    public String getBlockchainName() {
+        return blockchainName;
+    }
+
+    public void setBlockchainName(String blockchainName) {
+        this.blockchainName = blockchainName;
+    }
+
+    public String getBlockchainKey() {
+        return blockchainKey;
+    }
+
+    public void setBlockchainKey(String blockchainKey) {
+        this.blockchainKey = blockchainKey;
+    }
+
+    public long getPaidLimitBytes() {
+        return paidLimitBytes;
+    }
+
+    public void setPaidLimitBytes(long paidLimitBytes) {
+        this.paidLimitBytes = paidLimitBytes;
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/UserAccessServerRouteEntry.java

@@ -0,0 +1,27 @@
+package shine.db.entities;
+
+/**
+ * Локальная routing-проекция access server пользователя.
+ *
+ * Источник:
+ *  - user_access_servers_current
+ */
+public class UserAccessServerRouteEntry {
+
+    private String userLogin;
+    private String serverLogin;
+    private String serverUrl;
+    private String serverClientKey;
+
+    public String getUserLogin() { return userLogin; }
+    public void setUserLogin(String userLogin) { this.userLogin = userLogin; }
+
+    public String getServerLogin() { return serverLogin; }
+    public void setServerLogin(String serverLogin) { this.serverLogin = serverLogin; }
+
+    public String getServerUrl() { return serverUrl; }
+    public void setServerUrl(String serverUrl) { this.serverUrl = serverUrl; }
+
+    public String getServerClientKey() { return serverClientKey; }
+    public void setServerClientKey(String serverClientKey) { this.serverClientKey = serverClientKey; }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/UserNotificationEntry.java

@@ -0,0 +1,44 @@
+package shine.db.entities;
+
+public class UserNotificationEntry {
+    private String ownerLogin;
+    private String notificationKind;
+    private long createdAtMs;
+    private String sourceLogin;
+    private String sourceBchName;
+    private int sourceBlockNumber;
+    private byte[] sourceBlockHash;
+    private String targetLogin;
+    private String targetBchName;
+    private Integer targetBlockNumber;
+    private byte[] targetBlockHash;
+    private int sourceMsgSubType;
+    private String sourceText;
+
+    public String getOwnerLogin() { return ownerLogin; }
+    public void setOwnerLogin(String ownerLogin) { this.ownerLogin = ownerLogin; }
+    public String getNotificationKind() { return notificationKind; }
+    public void setNotificationKind(String notificationKind) { this.notificationKind = notificationKind; }
+    public long getCreatedAtMs() { return createdAtMs; }
+    public void setCreatedAtMs(long createdAtMs) { this.createdAtMs = createdAtMs; }
+    public String getSourceLogin() { return sourceLogin; }
+    public void setSourceLogin(String sourceLogin) { this.sourceLogin = sourceLogin; }
+    public String getSourceBchName() { return sourceBchName; }
+    public void setSourceBchName(String sourceBchName) { this.sourceBchName = sourceBchName; }
+    public int getSourceBlockNumber() { return sourceBlockNumber; }
+    public void setSourceBlockNumber(int sourceBlockNumber) { this.sourceBlockNumber = sourceBlockNumber; }
+    public byte[] getSourceBlockHash() { return sourceBlockHash; }
+    public void setSourceBlockHash(byte[] sourceBlockHash) { this.sourceBlockHash = sourceBlockHash; }
+    public String getTargetLogin() { return targetLogin; }
+    public void setTargetLogin(String targetLogin) { this.targetLogin = targetLogin; }
+    public String getTargetBchName() { return targetBchName; }
+    public void setTargetBchName(String targetBchName) { this.targetBchName = targetBchName; }
+    public Integer getTargetBlockNumber() { return targetBlockNumber; }
+    public void setTargetBlockNumber(Integer targetBlockNumber) { this.targetBlockNumber = targetBlockNumber; }
+    public byte[] getTargetBlockHash() { return targetBlockHash; }
+    public void setTargetBlockHash(byte[] targetBlockHash) { this.targetBlockHash = targetBlockHash; }
+    public int getSourceMsgSubType() { return sourceMsgSubType; }
+    public void setSourceMsgSubType(int sourceMsgSubType) { this.sourceMsgSubType = sourceMsgSubType; }
+    public String getSourceText() { return sourceText; }
+    public void setSourceText(String sourceText) { this.sourceText = sourceText; }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/UserSettingEntry.java

@@ -0,0 +1,52 @@
+package shine.db.entities;
+
+/** Одна локально сохранённая подписанная пользовательская настройка. */
+public class UserSettingEntry {
+    private String login;
+    private int settingType;
+    private String settingKey;
+    private long timeMs;
+    private String valueText;
+    private long valueNum;
+    private String clientKey;
+    private String signature;
+
+    public UserSettingEntry() {}
+
+    public UserSettingEntry(
+            String login,
+            int settingType,
+            String settingKey,
+            long timeMs,
+            String valueText,
+            long valueNum,
+            String clientKey,
+            String signature
+    ) {
+        this.login = login;
+        this.settingType = settingType;
+        this.settingKey = settingKey;
+        this.timeMs = timeMs;
+        this.valueText = valueText;
+        this.valueNum = valueNum;
+        this.clientKey = clientKey;
+        this.signature = signature;
+    }
+
+    public String getLogin() { return login; }
+    public void setLogin(String login) { this.login = login; }
+    public int getSettingType() { return settingType; }
+    public void setSettingType(int settingType) { this.settingType = settingType; }
+    public String getSettingKey() { return settingKey; }
+    public void setSettingKey(String settingKey) { this.settingKey = settingKey; }
+    public long getTimeMs() { return timeMs; }
+    public void setTimeMs(long timeMs) { this.timeMs = timeMs; }
+    public String getValueText() { return valueText; }
+    public void setValueText(String valueText) { this.valueText = valueText; }
+    public long getValueNum() { return valueNum; }
+    public void setValueNum(long valueNum) { this.valueNum = valueNum; }
+    public String getClientKey() { return clientKey; }
+    public void setClientKey(String clientKey) { this.clientKey = clientKey; }
+    public String getSignature() { return signature; }
+    public void setSignature(String signature) { this.signature = signature; }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/UserSettingsSyncPeerStateEntry.java

@@ -0,0 +1,40 @@
+package shine.db.entities;
+
+public class UserSettingsSyncPeerStateEntry {
+    private String ownerLogin;
+    private String remoteServerLogin;
+    private String remoteServerUrl;
+    private long cursorTimeMs;
+    private String cursorSettingKey;
+    private boolean bootstrapCompleted;
+    private Long lastSyncAtMs;
+    private String lastError;
+    private long updatedAtMs;
+
+    public String getOwnerLogin() { return ownerLogin; }
+    public void setOwnerLogin(String ownerLogin) { this.ownerLogin = ownerLogin; }
+
+    public String getRemoteServerLogin() { return remoteServerLogin; }
+    public void setRemoteServerLogin(String remoteServerLogin) { this.remoteServerLogin = remoteServerLogin; }
+
+    public String getRemoteServerUrl() { return remoteServerUrl; }
+    public void setRemoteServerUrl(String remoteServerUrl) { this.remoteServerUrl = remoteServerUrl; }
+
+    public long getCursorTimeMs() { return cursorTimeMs; }
+    public void setCursorTimeMs(long cursorTimeMs) { this.cursorTimeMs = cursorTimeMs; }
+
+    public String getCursorSettingKey() { return cursorSettingKey; }
+    public void setCursorSettingKey(String cursorSettingKey) { this.cursorSettingKey = cursorSettingKey; }
+
+    public boolean isBootstrapCompleted() { return bootstrapCompleted; }
+    public void setBootstrapCompleted(boolean bootstrapCompleted) { this.bootstrapCompleted = bootstrapCompleted; }
+
+    public Long getLastSyncAtMs() { return lastSyncAtMs; }
+    public void setLastSyncAtMs(Long lastSyncAtMs) { this.lastSyncAtMs = lastSyncAtMs; }
+
+    public String getLastError() { return lastError; }
+    public void setLastError(String lastError) { this.lastError = lastError; }
+
+    public long getUpdatedAtMs() { return updatedAtMs; }
+    public void setUpdatedAtMs(long updatedAtMs) { this.updatedAtMs = updatedAtMs; }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/sql/CurrentUsersSql.java

@@ -0,0 +1,25 @@
+package shine.db.sql;
+
+public final class CurrentUsersSql {
+
+    private CurrentUsersSql() {}
+
+    public static String usersSubquery(String alias) {
+        if (alias == null || alias.isBlank()) {
+            throw new IllegalArgumentException("alias is blank");
+        }
+        return """
+            (
+                SELECT
+                    current_users.login AS login,
+                    current_users.normalized_login AS normalized_login,
+                    current_users.blockchain_name AS blockchain_name,
+                    current_users.client_key AS solana_key,
+                    current_users.blockchain_key AS blockchain_key,
+                    current_users.client_key AS client_key,
+                    current_users.is_server AS is_server
+                FROM solana_user_pda_current current_users
+            ) %s
+            """.formatted(alias);
+    }
+}

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v10.sql

@@ -0,0 +1,32 @@
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS user_notifications_state (
+    owner_login           TEXT NOT NULL REFERENCES solana_user_pda_current(normalized_login),
+    notification_kind     TEXT NOT NULL CHECK (notification_kind IN ('reply', 'connection')),
+    created_at_ms         BIGINT NOT NULL,
+    source_login          TEXT NOT NULL,
+    source_bch_name       TEXT NOT NULL,
+    source_block_number   INTEGER NOT NULL CHECK (source_block_number >= 0),
+    source_block_hash     BYTEA NOT NULL,
+    target_login          TEXT,
+    target_bch_name       TEXT,
+    target_block_number   INTEGER,
+    target_block_hash     BYTEA,
+    source_msg_sub_type   INTEGER NOT NULL,
+    source_text           TEXT NOT NULL DEFAULT '',
+    UNIQUE (owner_login, notification_kind, source_bch_name, source_block_number, source_block_hash)
+);
+
+CREATE INDEX IF NOT EXISTS idx_user_notifications_state_owner_kind_time
+    ON user_notifications_state(owner_login, notification_kind, created_at_ms DESC, source_block_number DESC);
+
+CREATE INDEX IF NOT EXISTS idx_user_notifications_state_owner_time
+    ON user_notifications_state(owner_login, created_at_ms DESC);
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 10, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v11.sql

@@ -0,0 +1,30 @@
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS dm_dialog_state (
+    owner_login                   TEXT NOT NULL,
+    peer_login                    TEXT NOT NULL,
+    relation_flag                 TEXT NOT NULL DEFAULT 'none',
+    last_message_blob_b64         TEXT NOT NULL DEFAULT '',
+    last_message_key              TEXT NOT NULL DEFAULT '',
+    last_message_type             INTEGER NOT NULL DEFAULT 0,
+    last_message_time_ms          BIGINT NOT NULL DEFAULT 0,
+    last_message_revision_ms      BIGINT NOT NULL DEFAULT 0,
+    unread_count                  INTEGER NOT NULL DEFAULT 0,
+    last_read_receipt_time_ms     BIGINT NOT NULL DEFAULT 0,
+    updated_at_ms                 BIGINT NOT NULL,
+    PRIMARY KEY (owner_login, peer_login)
+);
+
+ALTER TABLE IF EXISTS dm_dialog_state
+    ADD COLUMN IF NOT EXISTS last_message_blob_b64 TEXT NOT NULL DEFAULT '';
+
+CREATE INDEX IF NOT EXISTS idx_dm_dialog_state_owner_last_time
+    ON dm_dialog_state(owner_login, last_message_time_ms DESC, peer_login);
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 11, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v12.sql

@@ -0,0 +1,139 @@
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS dm_delivery_state (
+    outgoing_message_key      TEXT PRIMARY KEY,
+    event_id                  TEXT NOT NULL UNIQUE,
+    base_key                  TEXT NOT NULL,
+    from_login                TEXT NOT NULL,
+    to_login                  TEXT NOT NULL,
+    incoming_message_key      TEXT NOT NULL,
+    created_at_ms             BIGINT NOT NULL,
+    delivery_expires_at_ms    BIGINT NOT NULL,
+    delivery_state            INTEGER NOT NULL DEFAULT 0 CHECK (delivery_state IN (0, 1, 2, 3)),
+    delivered_server_login    TEXT,
+    recipient_routes_hash     TEXT,
+    attempt_index             INTEGER NOT NULL DEFAULT 0,
+    next_attempt_at_ms        BIGINT,
+    last_attempt_at_ms        BIGINT,
+    last_error                TEXT,
+    updated_at_ms             BIGINT NOT NULL
+);
+
+CREATE INDEX IF NOT EXISTS idx_dm_delivery_state_due
+    ON dm_delivery_state(next_attempt_at_ms, delivery_state)
+    WHERE delivery_state = 0 AND next_attempt_at_ms IS NOT NULL;
+
+CREATE INDEX IF NOT EXISTS idx_dm_delivery_state_base
+    ON dm_delivery_state(base_key, from_login);
+
+CREATE TABLE IF NOT EXISTS dm_sync_outbox (
+    owner_login               TEXT NOT NULL,
+    primary_message_key       TEXT NOT NULL,
+    event_id                  TEXT NOT NULL,
+    secondary_message_key     TEXT,
+    synced                    BOOLEAN NOT NULL DEFAULT FALSE,
+    created_at_ms             BIGINT NOT NULL,
+    updated_at_ms             BIGINT NOT NULL,
+    PRIMARY KEY (owner_login, primary_message_key)
+);
+
+CREATE INDEX IF NOT EXISTS idx_dm_sync_outbox_unsynced
+    ON dm_sync_outbox(owner_login, created_at_ms, primary_message_key)
+    WHERE synced = FALSE;
+
+-- До v12 факт межсерверной доставки не сохранялся. Старые исходящие пары
+-- считаем уже доставленными, чтобы обновление не вызвало повторную рассылку.
+INSERT INTO dm_delivery_state (
+    outgoing_message_key, event_id, base_key, from_login, to_login,
+    incoming_message_key, created_at_ms, delivery_expires_at_ms,
+    delivery_state, delivered_server_login, recipient_routes_hash,
+    attempt_index, next_attempt_at_ms, last_attempt_at_ms, last_error, updated_at_ms
+)
+SELECT
+    outgoing.message_key,
+    outgoing.message_key || ':' || outgoing.revision_time_ms || ':' || outgoing.reencrypted_at_ms,
+    outgoing.base_key,
+    outgoing.from_login,
+    outgoing.to_login,
+    incoming.message_key,
+    outgoing.created_at_ms,
+    outgoing.created_at_ms + 3600000,
+    2,
+    NULL,
+    NULL,
+    9,
+    NULL,
+    NULL,
+    'MIGRATED_AS_DELIVERED',
+    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+FROM signed_messages outgoing
+JOIN signed_messages incoming
+  ON incoming.base_key = outgoing.base_key
+ AND incoming.message_type = outgoing.message_type - 1
+WHERE outgoing.message_type IN (2, 4)
+ON CONFLICT (outgoing_message_key) DO NOTHING;
+
+-- Историю до v12 считаем подтверждённой, иначе само обновление вызовет
+-- массовую повторную передачу. При замене сервера общий reset вернёт FALSE.
+INSERT INTO dm_sync_outbox (
+    owner_login, primary_message_key, event_id, secondary_message_key,
+    synced, created_at_ms, updated_at_ms
+)
+SELECT
+    LOWER(outgoing.from_login),
+    outgoing.message_key,
+    outgoing.message_key || ':' || outgoing.revision_time_ms || ':' || outgoing.reencrypted_at_ms,
+    incoming.message_key,
+    TRUE,
+    outgoing.created_at_ms,
+    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+FROM signed_messages outgoing
+JOIN signed_messages incoming
+  ON incoming.base_key = outgoing.base_key
+ AND incoming.message_type = outgoing.message_type - 1
+WHERE outgoing.message_type IN (2, 4)
+ON CONFLICT (owner_login, primary_message_key) DO NOTHING;
+
+-- Входящая копия синхронизируется отдельно между серверами получателя.
+INSERT INTO dm_sync_outbox (
+    owner_login, primary_message_key, event_id, secondary_message_key,
+    synced, created_at_ms, updated_at_ms
+)
+SELECT
+    LOWER(incoming.to_login),
+    incoming.message_key,
+    incoming.message_key || ':' || incoming.revision_time_ms || ':' || incoming.reencrypted_at_ms,
+    NULL,
+    TRUE,
+    incoming.created_at_ms,
+    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+FROM signed_messages incoming
+WHERE incoming.message_type IN (1, 3)
+ON CONFLICT (owner_login, primary_message_key) DO NOTHING;
+
+-- Tombstone принадлежит обоим участникам и должен попасть на второй сервер
+-- каждого из них. Для self-DM конфликт безопасно схлопывается.
+INSERT INTO dm_sync_outbox (
+    owner_login, primary_message_key, event_id, secondary_message_key,
+    synced, created_at_ms, updated_at_ms
+)
+SELECT
+    LOWER(owner_login),
+    tombstone.message_key,
+    tombstone.message_key || ':' || tombstone.revision_time_ms || ':' || tombstone.reencrypted_at_ms,
+    NULL,
+    TRUE,
+    tombstone.created_at_ms,
+    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+FROM signed_messages tombstone
+CROSS JOIN LATERAL (VALUES (tombstone.from_login), (tombstone.to_login)) owners(owner_login)
+WHERE tombstone.message_type IN (5, 6, 7, 8)
+ON CONFLICT (owner_login, primary_message_key) DO NOTHING;
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 12, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v13.sql

@@ -0,0 +1,46 @@
+BEGIN;
+
+-- Нормализация экспериментальной схемы доставки v12:
+-- 0=accepted, 1=delivered, 3=failed. Старое delivered_all (2)
+-- объединяется с delivered, поскольку ACK одного сервера теперь достаточен.
+UPDATE dm_delivery_state
+SET delivery_state = 1,
+    delivered_server_login = NULL,
+    next_attempt_at_ms = NULL,
+    updated_at_ms = CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+WHERE delivery_state = 2;
+
+-- Для незавершённых записей перестраиваем только будущую очередь. Повторная
+-- передача безопасна благодаря messageKey и идемпотентному приёму.
+UPDATE dm_delivery_state
+SET delivery_expires_at_ms = created_at_ms + 3600000,
+    attempt_index = CASE
+        WHEN CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT) >= created_at_ms + 3600000 THEN 4
+        WHEN CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT) >= created_at_ms + 1500000 THEN 3
+        WHEN CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT) >= created_at_ms + 300000 THEN 2
+        ELSE 1
+    END,
+    next_attempt_at_ms = CASE
+        WHEN CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT) >= created_at_ms + 3600000
+            THEN CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+        WHEN CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT) >= created_at_ms + 1500000
+            THEN created_at_ms + 3600000
+        WHEN CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT) >= created_at_ms + 300000
+            THEN created_at_ms + 1500000
+        ELSE created_at_ms + 30000
+    END,
+    updated_at_ms = CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+WHERE delivery_state = 0;
+
+DROP INDEX IF EXISTS idx_dm_delivery_state_due;
+CREATE INDEX idx_dm_delivery_state_due
+    ON dm_delivery_state(next_attempt_at_ms, delivery_state)
+    WHERE delivery_state = 0 AND next_attempt_at_ms IS NOT NULL;
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 13, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v14.sql

@@ -0,0 +1,620 @@
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS user_stats_state (
+    login                       TEXT PRIMARY KEY REFERENCES solana_user_pda_current(login) ON DELETE CASCADE,
+    owned_public_channels_count INTEGER NOT NULL DEFAULT 0 CHECK (owned_public_channels_count >= 0),
+    following_users_count       INTEGER NOT NULL DEFAULT 0 CHECK (following_users_count >= 0),
+    following_channels_count    INTEGER NOT NULL DEFAULT 0 CHECK (following_channels_count >= 0),
+    close_friends_count         INTEGER NOT NULL DEFAULT 0 CHECK (close_friends_count >= 0),
+    updated_at_ms               BIGINT NOT NULL
+);
+
+CREATE INDEX IF NOT EXISTS idx_user_stats_state_following_users_count
+    ON user_stats_state (following_users_count);
+
+CREATE TABLE IF NOT EXISTS channel_stats_state (
+    owner_bch_name            TEXT NOT NULL,
+    channel_root_block_number INTEGER NOT NULL CHECK (channel_root_block_number >= 0),
+    channel_root_block_hash   BYTEA NOT NULL,
+    owner_login               TEXT NOT NULL,
+    channel_type_code         INTEGER NOT NULL DEFAULT 1,
+    subscribers_count         INTEGER NOT NULL DEFAULT 0 CHECK (subscribers_count >= 0),
+    updated_at_ms             BIGINT NOT NULL,
+    PRIMARY KEY (owner_bch_name, channel_root_block_number, channel_root_block_hash)
+);
+
+CREATE INDEX IF NOT EXISTS idx_channel_stats_state_owner_login
+    ON channel_stats_state (owner_login);
+
+CREATE OR REPLACE FUNCTION shine_user_stats_state_ai()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    now_ms BIGINT;
+BEGIN
+    now_ms := CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT);
+
+    INSERT INTO user_stats_state (
+        login,
+        owned_public_channels_count,
+        following_users_count,
+        following_channels_count,
+        close_friends_count,
+        updated_at_ms
+    ) VALUES (
+        NEW.login,
+        0,
+        0,
+        0,
+        0,
+        now_ms
+    )
+    ON CONFLICT (login) DO NOTHING;
+
+    RETURN NEW;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION shine_channel_names_state_stats_ai()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    now_ms BIGINT;
+    public_subscribers_count INTEGER;
+BEGIN
+    now_ms := CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT);
+
+    IF NEW.owner_login IS NULL OR btrim(NEW.owner_login) = '' THEN
+        RETURN NEW;
+    END IF;
+
+    IF NEW.channel_type_code = 1 THEN
+        INSERT INTO user_stats_state (
+            login,
+            owned_public_channels_count,
+            following_users_count,
+            following_channels_count,
+            close_friends_count,
+            updated_at_ms
+        ) VALUES (
+            NEW.owner_login,
+            1,
+            0,
+            0,
+            0,
+            now_ms
+        )
+        ON CONFLICT (login) DO UPDATE SET
+            owned_public_channels_count = user_stats_state.owned_public_channels_count + 1,
+            updated_at_ms = EXCLUDED.updated_at_ms;
+
+        SELECT COUNT(*)::INTEGER
+        INTO public_subscribers_count
+        FROM connections_state cs
+        JOIN channel_names_state cn
+          ON cn.owner_bch_name = cs.to_bch_name
+         AND cn.channel_root_block_number = cs.to_block_number
+         AND cn.channel_root_block_hash = cs.to_block_hash
+        WHERE cs.rel_type = 30
+          AND cn.owner_bch_name = NEW.owner_bch_name
+          AND cn.channel_root_block_number = NEW.channel_root_block_number
+          AND cn.channel_root_block_hash = NEW.channel_root_block_hash
+          AND cn.channel_type_code = 1;
+
+        INSERT INTO channel_stats_state (
+            owner_bch_name,
+            channel_root_block_number,
+            channel_root_block_hash,
+            owner_login,
+            channel_type_code,
+            subscribers_count,
+            updated_at_ms
+        ) VALUES (
+            NEW.owner_bch_name,
+            NEW.channel_root_block_number,
+            NEW.channel_root_block_hash,
+            NEW.owner_login,
+            NEW.channel_type_code,
+            COALESCE(public_subscribers_count, 0),
+            now_ms
+        )
+        ON CONFLICT (owner_bch_name, channel_root_block_number, channel_root_block_hash) DO UPDATE SET
+            owner_login = EXCLUDED.owner_login,
+            channel_type_code = EXCLUDED.channel_type_code,
+            subscribers_count = EXCLUDED.subscribers_count,
+            updated_at_ms = EXCLUDED.updated_at_ms;
+    ELSE
+        WITH pending AS (
+            SELECT cs.login, COUNT(*)::INTEGER AS cnt
+            FROM connections_state cs
+            WHERE cs.rel_type = 30
+              AND cs.to_bch_name = NEW.owner_bch_name
+              AND cs.to_block_number = NEW.channel_root_block_number
+              AND cs.to_block_hash = NEW.channel_root_block_hash
+            GROUP BY cs.login
+        )
+        UPDATE user_stats_state us
+        SET following_channels_count = GREATEST(0, us.following_channels_count - pending.cnt),
+            updated_at_ms = now_ms
+        FROM pending
+        WHERE us.login = pending.login;
+    END IF;
+
+    RETURN NEW;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION shine_blocks_connection_state_ai()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    resolved_login TEXT;
+    positive_rel_type INTEGER;
+    existed_before BOOLEAN;
+    target_channel_type INTEGER;
+BEGIN
+    IF NEW.msg_type <> 3 THEN
+        RETURN NEW;
+    END IF;
+
+    resolved_login := shine_resolve_login(NEW.to_login, NEW.to_bch_name);
+
+    IF NEW.msg_sub_type IN (10, 20, 30, 40, 50, 52, 54, 60, 70, 74) THEN
+        IF resolved_login IS NULL OR NEW.to_bch_name IS NULL THEN
+            RETURN NEW;
+        END IF;
+
+        SELECT EXISTS (
+            SELECT 1
+            FROM connections_state
+            WHERE login = NEW.login
+              AND rel_type = NEW.msg_sub_type
+              AND to_login = resolved_login
+              AND to_bch_name = NEW.to_bch_name
+              AND to_block_number = COALESCE(NEW.to_block_number, 0)
+              AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'))
+        )
+        INTO existed_before;
+
+        IF NOT existed_before THEN
+            IF NEW.msg_sub_type = 10 THEN
+                INSERT INTO user_stats_state (
+                    login,
+                    owned_public_channels_count,
+                    following_users_count,
+                    following_channels_count,
+                    close_friends_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.login,
+                    0,
+                    0,
+                    0,
+                    1,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (login) DO UPDATE SET
+                    close_friends_count = user_stats_state.close_friends_count + 1,
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+            ELSIF NEW.msg_sub_type = 30 THEN
+                IF NEW.to_block_number IS NULL THEN
+                    INSERT INTO user_stats_state (
+                        login,
+                        owned_public_channels_count,
+                        following_users_count,
+                        following_channels_count,
+                        close_friends_count,
+                        updated_at_ms
+                    ) VALUES (
+                        NEW.login,
+                        0,
+                        0,
+                        1,
+                        0,
+                        CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                    )
+                    ON CONFLICT (login) DO UPDATE SET
+                        following_channels_count = user_stats_state.following_channels_count + 1,
+                        updated_at_ms = EXCLUDED.updated_at_ms;
+                ELSIF NEW.to_block_number = 0 THEN
+                    INSERT INTO user_stats_state (
+                        login,
+                        owned_public_channels_count,
+                        following_users_count,
+                        following_channels_count,
+                        close_friends_count,
+                        updated_at_ms
+                    ) VALUES (
+                        NEW.login,
+                        0,
+                        1,
+                        0,
+                        0,
+                        CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                    )
+                    ON CONFLICT (login) DO UPDATE SET
+                        following_users_count = user_stats_state.following_users_count + 1,
+                        updated_at_ms = EXCLUDED.updated_at_ms;
+                ELSE
+                    SELECT cn.channel_type_code
+                    INTO target_channel_type
+                    FROM channel_names_state cn
+                    WHERE cn.owner_bch_name = NEW.to_bch_name
+                      AND cn.channel_root_block_number = NEW.to_block_number
+                      AND cn.channel_root_block_hash = NEW.to_block_hash
+                    LIMIT 1;
+
+                    IF target_channel_type = 1 THEN
+                        INSERT INTO user_stats_state (
+                            login,
+                            owned_public_channels_count,
+                            following_users_count,
+                            following_channels_count,
+                            close_friends_count,
+                            updated_at_ms
+                        ) VALUES (
+                            NEW.login,
+                            0,
+                            0,
+                            1,
+                            0,
+                            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                        )
+                        ON CONFLICT (login) DO UPDATE SET
+                            following_channels_count = user_stats_state.following_channels_count + 1,
+                            updated_at_ms = EXCLUDED.updated_at_ms;
+
+                        INSERT INTO channel_stats_state (
+                            owner_bch_name,
+                            channel_root_block_number,
+                            channel_root_block_hash,
+                            owner_login,
+                            channel_type_code,
+                            subscribers_count,
+                            updated_at_ms
+                        ) VALUES (
+                            NEW.to_bch_name,
+                            NEW.to_block_number,
+                            NEW.to_block_hash,
+                            resolved_login,
+                            target_channel_type,
+                            1,
+                            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                        )
+                        ON CONFLICT (owner_bch_name, channel_root_block_number, channel_root_block_hash) DO UPDATE SET
+                            owner_login = EXCLUDED.owner_login,
+                            channel_type_code = EXCLUDED.channel_type_code,
+                            subscribers_count = channel_stats_state.subscribers_count + 1,
+                            updated_at_ms = EXCLUDED.updated_at_ms;
+                    ELSIF target_channel_type IS NULL THEN
+                        INSERT INTO user_stats_state (
+                            login,
+                            owned_public_channels_count,
+                            following_users_count,
+                            following_channels_count,
+                            close_friends_count,
+                            updated_at_ms
+                        ) VALUES (
+                            NEW.login,
+                            0,
+                            0,
+                            1,
+                            0,
+                            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                        )
+                        ON CONFLICT (login) DO UPDATE SET
+                            following_channels_count = user_stats_state.following_channels_count + 1,
+                            updated_at_ms = EXCLUDED.updated_at_ms;
+                    END IF;
+                END IF;
+            END IF;
+        END IF;
+
+        DELETE FROM connections_state
+        WHERE login = NEW.login
+          AND rel_type = NEW.msg_sub_type
+          AND to_login = resolved_login
+          AND to_bch_name = NEW.to_bch_name
+          AND to_block_number = COALESCE(NEW.to_block_number, 0)
+          AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'));
+
+        INSERT INTO connections_state (
+            login, rel_type, to_login, to_bch_name, to_block_number, to_block_hash
+        ) VALUES (
+            NEW.login,
+            NEW.msg_sub_type,
+            resolved_login,
+            NEW.to_bch_name,
+            COALESCE(NEW.to_block_number, 0),
+            COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'))
+        );
+
+        RETURN NEW;
+    END IF;
+
+    positive_rel_type := CASE NEW.msg_sub_type
+        WHEN 11 THEN 10
+        WHEN 21 THEN 20
+        WHEN 31 THEN 30
+        WHEN 41 THEN 40
+        WHEN 51 THEN 50
+        WHEN 53 THEN 52
+        WHEN 55 THEN 54
+        WHEN 61 THEN 60
+        WHEN 71 THEN 70
+        WHEN 75 THEN 74
+        ELSE NULL
+    END;
+
+    IF positive_rel_type IS NULL OR resolved_login IS NULL THEN
+        RETURN NEW;
+    END IF;
+
+    SELECT EXISTS (
+        SELECT 1
+        FROM connections_state
+        WHERE login = NEW.login
+          AND rel_type = positive_rel_type
+          AND to_login = resolved_login
+          AND to_bch_name = NEW.to_bch_name
+          AND to_block_number = COALESCE(NEW.to_block_number, 0)
+          AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'))
+    )
+    INTO existed_before;
+
+    IF NOT existed_before THEN
+        RETURN NEW;
+    END IF;
+
+    IF positive_rel_type = 10 THEN
+        INSERT INTO user_stats_state (
+            login,
+            owned_public_channels_count,
+            following_users_count,
+            following_channels_count,
+            close_friends_count,
+            updated_at_ms
+        ) VALUES (
+            NEW.login,
+            0,
+            0,
+            0,
+            0,
+            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+        )
+        ON CONFLICT (login) DO UPDATE SET
+            close_friends_count = GREATEST(0, user_stats_state.close_friends_count - 1),
+            updated_at_ms = EXCLUDED.updated_at_ms;
+    ELSIF positive_rel_type = 30 THEN
+        IF NEW.to_block_number IS NULL THEN
+            INSERT INTO user_stats_state (
+                login,
+                owned_public_channels_count,
+                following_users_count,
+                following_channels_count,
+                close_friends_count,
+                updated_at_ms
+        ) VALUES (
+            NEW.login,
+            0,
+            0,
+            0,
+            0,
+            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+        )
+            ON CONFLICT (login) DO UPDATE SET
+                following_channels_count = GREATEST(0, user_stats_state.following_channels_count - 1),
+                updated_at_ms = EXCLUDED.updated_at_ms;
+        ELSIF NEW.to_block_number = 0 THEN
+            INSERT INTO user_stats_state (
+                login,
+                owned_public_channels_count,
+                following_users_count,
+                following_channels_count,
+                close_friends_count,
+                updated_at_ms
+        ) VALUES (
+            NEW.login,
+            0,
+            0,
+            0,
+            0,
+            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+        )
+            ON CONFLICT (login) DO UPDATE SET
+                following_users_count = GREATEST(0, user_stats_state.following_users_count - 1),
+                updated_at_ms = EXCLUDED.updated_at_ms;
+        ELSE
+            SELECT cn.channel_type_code
+            INTO target_channel_type
+            FROM channel_names_state cn
+            WHERE cn.owner_bch_name = NEW.to_bch_name
+              AND cn.channel_root_block_number = NEW.to_block_number
+              AND cn.channel_root_block_hash = NEW.to_block_hash
+            LIMIT 1;
+
+            IF target_channel_type = 1 THEN
+                INSERT INTO user_stats_state (
+                    login,
+                    owned_public_channels_count,
+                    following_users_count,
+                    following_channels_count,
+                    close_friends_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.login,
+                    0,
+                    0,
+                    0,
+                    0,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (login) DO UPDATE SET
+                    following_channels_count = GREATEST(0, user_stats_state.following_channels_count - 1),
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+
+                INSERT INTO channel_stats_state (
+                    owner_bch_name,
+                    channel_root_block_number,
+                    channel_root_block_hash,
+                    owner_login,
+                    channel_type_code,
+                    subscribers_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.to_bch_name,
+                    NEW.to_block_number,
+                    NEW.to_block_hash,
+                    resolved_login,
+                    target_channel_type,
+                    0,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (owner_bch_name, channel_root_block_number, channel_root_block_hash) DO UPDATE SET
+                    owner_login = EXCLUDED.owner_login,
+                    channel_type_code = EXCLUDED.channel_type_code,
+                    subscribers_count = GREATEST(0, channel_stats_state.subscribers_count - 1),
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+            ELSIF target_channel_type IS NULL THEN
+                INSERT INTO user_stats_state (
+                    login,
+                    owned_public_channels_count,
+                    following_users_count,
+                    following_channels_count,
+                    close_friends_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.login,
+                    0,
+                    0,
+                    0,
+                    0,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (login) DO UPDATE SET
+                    following_channels_count = GREATEST(0, user_stats_state.following_channels_count - 1),
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+            END IF;
+        END IF;
+    END IF;
+
+    DELETE FROM connections_state
+    WHERE login = NEW.login
+      AND rel_type = positive_rel_type
+      AND to_login = resolved_login
+      AND to_bch_name = NEW.to_bch_name
+      AND to_block_number = COALESCE(NEW.to_block_number, 0)
+      AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'));
+
+    RETURN NEW;
+END;
+$$;
+
+DROP TRIGGER IF EXISTS trg_user_stats_state_ai ON solana_user_pda_current;
+CREATE TRIGGER trg_user_stats_state_ai
+AFTER INSERT ON solana_user_pda_current
+FOR EACH ROW
+EXECUTE FUNCTION shine_user_stats_state_ai();
+
+DROP TRIGGER IF EXISTS trg_channel_names_state_stats_ai ON channel_names_state;
+CREATE TRIGGER trg_channel_names_state_stats_ai
+AFTER INSERT ON channel_names_state
+FOR EACH ROW
+EXECUTE FUNCTION shine_channel_names_state_stats_ai();
+
+DROP TRIGGER IF EXISTS trg_blocks_connection_state_ai ON blocks;
+CREATE TRIGGER trg_blocks_connection_state_ai
+AFTER INSERT ON blocks
+FOR EACH ROW
+EXECUTE FUNCTION shine_blocks_connection_state_ai();
+
+TRUNCATE TABLE user_stats_state, channel_stats_state;
+
+INSERT INTO user_stats_state (
+    login,
+    owned_public_channels_count,
+    following_users_count,
+    following_channels_count,
+    close_friends_count,
+    updated_at_ms
+)
+SELECT
+    u.login,
+    COALESCE(own.owned_public_channels_count, 0) AS owned_public_channels_count,
+    COALESCE(fu.following_users_count, 0) AS following_users_count,
+    COALESCE(fc.following_channels_count, 0) AS following_channels_count,
+    COALESCE(cf.close_friends_count, 0) AS close_friends_count,
+    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT) AS updated_at_ms
+FROM solana_user_pda_current u
+LEFT JOIN (
+    SELECT owner_login, COUNT(*)::INTEGER AS owned_public_channels_count
+    FROM channel_names_state
+    WHERE channel_type_code = 1
+    GROUP BY owner_login
+) own ON LOWER(own.owner_login) = LOWER(u.login)
+LEFT JOIN (
+    SELECT login, COUNT(*)::INTEGER AS following_users_count
+    FROM connections_state
+    WHERE rel_type = 30
+      AND to_block_number = 0
+    GROUP BY login
+) fu ON LOWER(fu.login) = LOWER(u.login)
+LEFT JOIN (
+    SELECT cs.login, COUNT(*)::INTEGER AS following_channels_count
+    FROM connections_state cs
+    JOIN channel_names_state cn
+      ON cn.owner_bch_name = cs.to_bch_name
+     AND cn.channel_root_block_number = cs.to_block_number
+     AND cn.channel_root_block_hash = cs.to_block_hash
+    WHERE cs.rel_type = 30
+      AND cn.channel_type_code = 1
+    GROUP BY cs.login
+) fc ON LOWER(fc.login) = LOWER(u.login)
+LEFT JOIN (
+    SELECT login, COUNT(*)::INTEGER AS close_friends_count
+    FROM connections_state
+    WHERE rel_type = 10
+    GROUP BY login
+) cf ON LOWER(cf.login) = LOWER(u.login);
+
+INSERT INTO channel_stats_state (
+    owner_bch_name,
+    channel_root_block_number,
+    channel_root_block_hash,
+    owner_login,
+    channel_type_code,
+    subscribers_count,
+    updated_at_ms
+)
+SELECT
+    cn.owner_bch_name,
+    cn.channel_root_block_number,
+    cn.channel_root_block_hash,
+    cn.owner_login,
+    cn.channel_type_code,
+    COUNT(DISTINCT cs.login)::INTEGER AS subscribers_count,
+    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT) AS updated_at_ms
+FROM channel_names_state cn
+LEFT JOIN connections_state cs
+  ON cs.rel_type = 30
+ AND cs.to_bch_name = cn.owner_bch_name
+ AND cs.to_block_number = cn.channel_root_block_number
+ AND cs.to_block_hash = cn.channel_root_block_hash
+WHERE cn.channel_type_code = 1
+GROUP BY
+    cn.owner_bch_name,
+    cn.channel_root_block_number,
+    cn.channel_root_block_hash,
+    cn.owner_login,
+    cn.channel_type_code;
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 14, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v15.sql

@@ -0,0 +1,105 @@
+BEGIN;
+
+CREATE OR REPLACE FUNCTION shine_channel_names_state_stats_ai()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    now_ms BIGINT;
+    public_subscribers_count INTEGER;
+BEGIN
+    now_ms := CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT);
+
+    IF NEW.owner_login IS NULL OR btrim(NEW.owner_login) = '' THEN
+        RETURN NEW;
+    END IF;
+
+    IF NEW.channel_type_code = 1 THEN
+        IF EXISTS (
+            SELECT 1
+            FROM solana_user_pda_current su
+            WHERE su.login = NEW.owner_login
+        ) THEN
+            INSERT INTO user_stats_state (
+                login,
+                owned_public_channels_count,
+                following_users_count,
+                following_channels_count,
+                close_friends_count,
+                updated_at_ms
+            ) VALUES (
+                NEW.owner_login,
+                1,
+                0,
+                0,
+                0,
+                now_ms
+            )
+            ON CONFLICT (login) DO UPDATE SET
+                owned_public_channels_count = user_stats_state.owned_public_channels_count + 1,
+                updated_at_ms = EXCLUDED.updated_at_ms;
+        END IF;
+
+        SELECT COUNT(*)::INTEGER
+        INTO public_subscribers_count
+        FROM connections_state cs
+        JOIN channel_names_state cn
+          ON cn.owner_bch_name = cs.to_bch_name
+         AND cn.channel_root_block_number = cs.to_block_number
+         AND cn.channel_root_block_hash = cs.to_block_hash
+        WHERE cs.rel_type = 30
+          AND cn.owner_bch_name = NEW.owner_bch_name
+          AND cn.channel_root_block_number = NEW.channel_root_block_number
+          AND cn.channel_root_block_hash = NEW.channel_root_block_hash
+          AND cn.channel_type_code = 1;
+
+        INSERT INTO channel_stats_state (
+            owner_bch_name,
+            channel_root_block_number,
+            channel_root_block_hash,
+            owner_login,
+            channel_type_code,
+            subscribers_count,
+            updated_at_ms
+        ) VALUES (
+            NEW.owner_bch_name,
+            NEW.channel_root_block_number,
+            NEW.channel_root_block_hash,
+            NEW.owner_login,
+            NEW.channel_type_code,
+            COALESCE(public_subscribers_count, 0),
+            now_ms
+        )
+        ON CONFLICT (owner_bch_name, channel_root_block_number, channel_root_block_hash) DO UPDATE SET
+            owner_login = EXCLUDED.owner_login,
+            channel_type_code = EXCLUDED.channel_type_code,
+            subscribers_count = EXCLUDED.subscribers_count,
+            updated_at_ms = EXCLUDED.updated_at_ms;
+    ELSE
+        WITH pending AS (
+            SELECT cs.login, COUNT(*)::INTEGER AS cnt
+            FROM connections_state cs
+            WHERE cs.rel_type = 30
+              AND cs.to_bch_name = NEW.owner_bch_name
+              AND cs.to_block_number = NEW.channel_root_block_number
+              AND cs.to_block_hash = NEW.channel_root_block_hash
+            GROUP BY cs.login
+        )
+        UPDATE user_stats_state us
+        SET following_channels_count = GREATEST(0, us.following_channels_count - pending.cnt),
+            updated_at_ms = now_ms
+        FROM pending
+        WHERE us.login = pending.login;
+    END IF;
+
+    RETURN NEW;
+END;
+$$;
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 15, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v16.sql

@@ -0,0 +1,112 @@
+BEGIN;
+
+-- У пользователя действует только первый access_server из Solana PDA.
+CREATE OR REPLACE FUNCTION shine_refresh_user_access_servers_for_user(p_user_login TEXT)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+BEGIN
+    IF p_user_login IS NULL OR btrim(p_user_login) = '' THEN
+        RETURN;
+    END IF;
+
+    DELETE FROM user_access_servers_current
+    WHERE LOWER(user_login) = LOWER(p_user_login);
+
+    INSERT INTO user_access_servers_current (
+        user_login,
+        server_login,
+        server_url,
+        server_client_key,
+        user_record_number,
+        user_updated_at_ms,
+        server_record_number,
+        server_updated_at_ms,
+        refreshed_at_ms
+    )
+    SELECT
+        u.login,
+        s.login,
+        s.server_address,
+        s.client_key,
+        u.record_number,
+        u.updated_at_ms,
+        s.record_number,
+        s.updated_at_ms,
+        CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+    FROM solana_user_pda_current u
+    CROSS JOIN LATERAL (
+        SELECT login_value
+        FROM jsonb_array_elements_text(
+            CASE
+                WHEN btrim(COALESCE(u.access_servers_json, '')) = '' THEN '[]'::jsonb
+                ELSE u.access_servers_json::jsonb
+            END
+        ) WITH ORDINALITY AS access_server(login_value, ord)
+        WHERE ord = 1
+    ) AS access_server
+    JOIN solana_user_pda_current s
+      ON LOWER(s.login) = LOWER(btrim(access_server.login_value))
+     AND s.is_server = TRUE
+     AND btrim(COALESCE(s.server_address, '')) <> ''
+    WHERE LOWER(u.login) = LOWER(p_user_login)
+    ON CONFLICT (user_login, server_login) DO UPDATE SET
+        server_url = EXCLUDED.server_url,
+        server_client_key = EXCLUDED.server_client_key,
+        user_record_number = EXCLUDED.user_record_number,
+        user_updated_at_ms = EXCLUDED.user_updated_at_ms,
+        server_record_number = EXCLUDED.server_record_number,
+        server_updated_at_ms = EXCLUDED.server_updated_at_ms,
+        refreshed_at_ms = EXCLUDED.refreshed_at_ms;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION shine_refresh_user_access_servers_for_server(p_server_login TEXT)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    affected_user RECORD;
+BEGIN
+    IF p_server_login IS NULL OR btrim(p_server_login) = '' THEN
+        RETURN;
+    END IF;
+
+    DELETE FROM user_access_servers_current
+    WHERE LOWER(server_login) = LOWER(p_server_login);
+
+    FOR affected_user IN
+        SELECT u.login
+        FROM solana_user_pda_current u
+        CROSS JOIN LATERAL (
+            SELECT login_value
+            FROM jsonb_array_elements_text(
+                CASE
+                    WHEN btrim(COALESCE(u.access_servers_json, '')) = '' THEN '[]'::jsonb
+                    ELSE u.access_servers_json::jsonb
+                END
+            ) WITH ORDINALITY AS access_server(login_value, ord)
+            WHERE ord = 1
+        ) AS access_server
+        WHERE LOWER(btrim(access_server.login_value)) = LOWER(p_server_login)
+    LOOP
+        PERFORM shine_refresh_user_access_servers_for_user(affected_user.login);
+    END LOOP;
+END;
+$$;
+
+DROP TABLE IF EXISTS dm_sync_outbox;
+DROP TABLE IF EXISTS dm_sync_peer_state;
+DROP TABLE IF EXISTS user_settings_sync_peer_state;
+DROP INDEX IF EXISTS idx_user_settings_synced;
+ALTER TABLE user_settings DROP COLUMN IF EXISTS synced;
+
+SELECT shine_refresh_user_access_servers_all();
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 16, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v17.sql

@@ -0,0 +1,381 @@
+BEGIN;
+
+-- Add active FRIEND 14/15 and OFFICIAL_ACCOUNT confirmation 80/81 to connection state.
+-- Legacy 60/61 remain accepted at protocol level; this migration does not reinterpret existing rows.
+
+CREATE OR REPLACE FUNCTION shine_blocks_connection_state_ai()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    resolved_login TEXT;
+    positive_rel_type INTEGER;
+    existed_before BOOLEAN;
+    target_channel_type INTEGER;
+BEGIN
+    IF NEW.msg_type <> 3 THEN
+        RETURN NEW;
+    END IF;
+
+    resolved_login := shine_resolve_login(NEW.to_login, NEW.to_bch_name);
+
+    IF NEW.msg_sub_type IN (10, 14, 20, 30, 40, 50, 52, 54, 60, 70, 74, 80) THEN
+        IF resolved_login IS NULL OR NEW.to_bch_name IS NULL THEN
+            RETURN NEW;
+        END IF;
+
+        SELECT EXISTS (
+            SELECT 1
+            FROM connections_state
+            WHERE login = NEW.login
+              AND rel_type = NEW.msg_sub_type
+              AND to_login = resolved_login
+              AND to_bch_name = NEW.to_bch_name
+              AND to_block_number = COALESCE(NEW.to_block_number, 0)
+              AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'))
+        )
+        INTO existed_before;
+
+        IF NOT existed_before THEN
+            IF NEW.msg_sub_type = 10 THEN
+                INSERT INTO user_stats_state (
+                    login,
+                    owned_public_channels_count,
+                    following_users_count,
+                    following_channels_count,
+                    close_friends_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.login,
+                    0,
+                    0,
+                    0,
+                    1,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (login) DO UPDATE SET
+                    close_friends_count = user_stats_state.close_friends_count + 1,
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+            ELSIF NEW.msg_sub_type = 30 THEN
+                IF NEW.to_block_number IS NULL THEN
+                    INSERT INTO user_stats_state (
+                        login,
+                        owned_public_channels_count,
+                        following_users_count,
+                        following_channels_count,
+                        close_friends_count,
+                        updated_at_ms
+                    ) VALUES (
+                        NEW.login,
+                        0,
+                        0,
+                        1,
+                        0,
+                        CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                    )
+                    ON CONFLICT (login) DO UPDATE SET
+                        following_channels_count = user_stats_state.following_channels_count + 1,
+                        updated_at_ms = EXCLUDED.updated_at_ms;
+                ELSIF NEW.to_block_number = 0 THEN
+                    INSERT INTO user_stats_state (
+                        login,
+                        owned_public_channels_count,
+                        following_users_count,
+                        following_channels_count,
+                        close_friends_count,
+                        updated_at_ms
+                    ) VALUES (
+                        NEW.login,
+                        0,
+                        1,
+                        0,
+                        0,
+                        CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                    )
+                    ON CONFLICT (login) DO UPDATE SET
+                        following_users_count = user_stats_state.following_users_count + 1,
+                        updated_at_ms = EXCLUDED.updated_at_ms;
+                ELSE
+                    SELECT cn.channel_type_code
+                    INTO target_channel_type
+                    FROM channel_names_state cn
+                    WHERE cn.owner_bch_name = NEW.to_bch_name
+                      AND cn.channel_root_block_number = NEW.to_block_number
+                      AND cn.channel_root_block_hash = NEW.to_block_hash
+                    LIMIT 1;
+
+                    IF target_channel_type = 1 THEN
+                        INSERT INTO user_stats_state (
+                            login,
+                            owned_public_channels_count,
+                            following_users_count,
+                            following_channels_count,
+                            close_friends_count,
+                            updated_at_ms
+                        ) VALUES (
+                            NEW.login,
+                            0,
+                            0,
+                            1,
+                            0,
+                            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                        )
+                        ON CONFLICT (login) DO UPDATE SET
+                            following_channels_count = user_stats_state.following_channels_count + 1,
+                            updated_at_ms = EXCLUDED.updated_at_ms;
+
+                        INSERT INTO channel_stats_state (
+                            owner_bch_name,
+                            channel_root_block_number,
+                            channel_root_block_hash,
+                            owner_login,
+                            channel_type_code,
+                            subscribers_count,
+                            updated_at_ms
+                        ) VALUES (
+                            NEW.to_bch_name,
+                            NEW.to_block_number,
+                            NEW.to_block_hash,
+                            resolved_login,
+                            target_channel_type,
+                            1,
+                            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                        )
+                        ON CONFLICT (owner_bch_name, channel_root_block_number, channel_root_block_hash) DO UPDATE SET
+                            owner_login = EXCLUDED.owner_login,
+                            channel_type_code = EXCLUDED.channel_type_code,
+                            subscribers_count = channel_stats_state.subscribers_count + 1,
+                            updated_at_ms = EXCLUDED.updated_at_ms;
+                    ELSIF target_channel_type IS NULL THEN
+                        INSERT INTO user_stats_state (
+                            login,
+                            owned_public_channels_count,
+                            following_users_count,
+                            following_channels_count,
+                            close_friends_count,
+                            updated_at_ms
+                        ) VALUES (
+                            NEW.login,
+                            0,
+                            0,
+                            1,
+                            0,
+                            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                        )
+                        ON CONFLICT (login) DO UPDATE SET
+                            following_channels_count = user_stats_state.following_channels_count + 1,
+                            updated_at_ms = EXCLUDED.updated_at_ms;
+                    END IF;
+                END IF;
+            END IF;
+        END IF;
+
+        DELETE FROM connections_state
+        WHERE login = NEW.login
+          AND rel_type = NEW.msg_sub_type
+          AND to_login = resolved_login
+          AND to_bch_name = NEW.to_bch_name
+          AND to_block_number = COALESCE(NEW.to_block_number, 0)
+          AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'));
+
+        INSERT INTO connections_state (
+            login, rel_type, to_login, to_bch_name, to_block_number, to_block_hash
+        ) VALUES (
+            NEW.login,
+            NEW.msg_sub_type,
+            resolved_login,
+            NEW.to_bch_name,
+            COALESCE(NEW.to_block_number, 0),
+            COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'))
+        );
+
+        RETURN NEW;
+    END IF;
+
+    positive_rel_type := CASE NEW.msg_sub_type
+        WHEN 11 THEN 10
+        WHEN 15 THEN 14
+        WHEN 21 THEN 20
+        WHEN 31 THEN 30
+        WHEN 41 THEN 40
+        WHEN 51 THEN 50
+        WHEN 53 THEN 52
+        WHEN 55 THEN 54
+        WHEN 61 THEN 60
+        WHEN 71 THEN 70
+        WHEN 75 THEN 74
+        WHEN 81 THEN 80
+        ELSE NULL
+    END;
+
+    IF positive_rel_type IS NULL OR resolved_login IS NULL THEN
+        RETURN NEW;
+    END IF;
+
+    SELECT EXISTS (
+        SELECT 1
+        FROM connections_state
+        WHERE login = NEW.login
+          AND rel_type = positive_rel_type
+          AND to_login = resolved_login
+          AND to_bch_name = NEW.to_bch_name
+          AND to_block_number = COALESCE(NEW.to_block_number, 0)
+          AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'))
+    )
+    INTO existed_before;
+
+    IF NOT existed_before THEN
+        RETURN NEW;
+    END IF;
+
+    IF positive_rel_type = 10 THEN
+        INSERT INTO user_stats_state (
+            login,
+            owned_public_channels_count,
+            following_users_count,
+            following_channels_count,
+            close_friends_count,
+            updated_at_ms
+        ) VALUES (
+            NEW.login,
+            0,
+            0,
+            0,
+            0,
+            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+        )
+        ON CONFLICT (login) DO UPDATE SET
+            close_friends_count = GREATEST(0, user_stats_state.close_friends_count - 1),
+            updated_at_ms = EXCLUDED.updated_at_ms;
+    ELSIF positive_rel_type = 30 THEN
+        IF NEW.to_block_number IS NULL THEN
+            INSERT INTO user_stats_state (
+                login,
+                owned_public_channels_count,
+                following_users_count,
+                following_channels_count,
+                close_friends_count,
+                updated_at_ms
+        ) VALUES (
+            NEW.login,
+            0,
+            0,
+            0,
+            0,
+            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+        )
+            ON CONFLICT (login) DO UPDATE SET
+                following_channels_count = GREATEST(0, user_stats_state.following_channels_count - 1),
+                updated_at_ms = EXCLUDED.updated_at_ms;
+        ELSIF NEW.to_block_number = 0 THEN
+            INSERT INTO user_stats_state (
+                login,
+                owned_public_channels_count,
+                following_users_count,
+                following_channels_count,
+                close_friends_count,
+                updated_at_ms
+        ) VALUES (
+            NEW.login,
+            0,
+            0,
+            0,
+            0,
+            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+        )
+            ON CONFLICT (login) DO UPDATE SET
+                following_users_count = GREATEST(0, user_stats_state.following_users_count - 1),
+                updated_at_ms = EXCLUDED.updated_at_ms;
+        ELSE
+            SELECT cn.channel_type_code
+            INTO target_channel_type
+            FROM channel_names_state cn
+            WHERE cn.owner_bch_name = NEW.to_bch_name
+              AND cn.channel_root_block_number = NEW.to_block_number
+              AND cn.channel_root_block_hash = NEW.to_block_hash
+            LIMIT 1;
+
+            IF target_channel_type = 1 THEN
+                INSERT INTO user_stats_state (
+                    login,
+                    owned_public_channels_count,
+                    following_users_count,
+                    following_channels_count,
+                    close_friends_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.login,
+                    0,
+                    0,
+                    0,
+                    0,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (login) DO UPDATE SET
+                    following_channels_count = GREATEST(0, user_stats_state.following_channels_count - 1),
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+
+                INSERT INTO channel_stats_state (
+                    owner_bch_name,
+                    channel_root_block_number,
+                    channel_root_block_hash,
+                    owner_login,
+                    channel_type_code,
+                    subscribers_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.to_bch_name,
+                    NEW.to_block_number,
+                    NEW.to_block_hash,
+                    resolved_login,
+                    target_channel_type,
+                    0,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (owner_bch_name, channel_root_block_number, channel_root_block_hash) DO UPDATE SET
+                    owner_login = EXCLUDED.owner_login,
+                    channel_type_code = EXCLUDED.channel_type_code,
+                    subscribers_count = GREATEST(0, channel_stats_state.subscribers_count - 1),
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+            ELSIF target_channel_type IS NULL THEN
+                INSERT INTO user_stats_state (
+                    login,
+                    owned_public_channels_count,
+                    following_users_count,
+                    following_channels_count,
+                    close_friends_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.login,
+                    0,
+                    0,
+                    0,
+                    0,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (login) DO UPDATE SET
+                    following_channels_count = GREATEST(0, user_stats_state.following_channels_count - 1),
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+            END IF;
+        END IF;
+    END IF;
+
+    DELETE FROM connections_state
+    WHERE login = NEW.login
+      AND rel_type = positive_rel_type
+      AND to_login = resolved_login
+      AND to_bch_name = NEW.to_bch_name
+      AND to_block_number = COALESCE(NEW.to_block_number, 0)
+      AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'));
+
+    RETURN NEW;
+END;
+$$;
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 17, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v18.sql

@@ -0,0 +1,348 @@
+BEGIN;
+
+-- v18: fast profile projection, effective social/voting statistics and qualified likes.
+-- Source of truth remains users_params / connections_state / reactions_state / channel_names_state.
+
+CREATE TABLE IF NOT EXISTS user_profile_state (
+    login           TEXT PRIMARY KEY,
+    first_name      TEXT NOT NULL DEFAULT '',
+    last_name       TEXT NOT NULL DEFAULT '',
+    ava_ar          TEXT NOT NULL DEFAULT '',
+    account_role    TEXT,
+    shine_status    TEXT,
+    updated_at_ms   BIGINT NOT NULL DEFAULT 0
+);
+
+CREATE INDEX IF NOT EXISTS idx_user_profile_state_name
+    ON user_profile_state (LOWER(last_name), LOWER(first_name), LOWER(login));
+
+ALTER TABLE user_stats_state
+    ADD COLUMN IF NOT EXISTS friends_count INTEGER NOT NULL DEFAULT 0 CHECK (friends_count >= 0),
+    ADD COLUMN IF NOT EXISTS primary_confirmations_received_count INTEGER NOT NULL DEFAULT 0 CHECK (primary_confirmations_received_count >= 0),
+    ADD COLUMN IF NOT EXISTS primary_confirmations_given_count INTEGER NOT NULL DEFAULT 0 CHECK (primary_confirmations_given_count >= 0),
+    ADD COLUMN IF NOT EXISTS shine_confirmations_received_count INTEGER NOT NULL DEFAULT 0 CHECK (shine_confirmations_received_count >= 0),
+    ADD COLUMN IF NOT EXISTS shine_confirmations_given_count INTEGER NOT NULL DEFAULT 0 CHECK (shine_confirmations_given_count >= 0);
+
+ALTER TABLE message_stats
+    ADD COLUMN IF NOT EXISTS primary_likes_count INTEGER NOT NULL DEFAULT 0 CHECK (primary_likes_count >= 0),
+    ADD COLUMN IF NOT EXISTS shining_likes_count INTEGER NOT NULL DEFAULT 0 CHECK (shining_likes_count >= 0);
+
+CREATE OR REPLACE FUNCTION shine_refresh_user_profile(p_login TEXT)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    v_first_name TEXT := '';
+    v_last_name TEXT := '';
+    v_ava_ar TEXT := '';
+    v_account_role TEXT := NULL;
+    v_shine TEXT := NULL;
+    v_updated BIGINT := 0;
+BEGIN
+    IF p_login IS NULL OR btrim(p_login) = '' THEN RETURN; END IF;
+
+    SELECT COALESCE(MAX(value) FILTER (WHERE param = 'first_name'), ''),
+           COALESCE(MAX(value) FILTER (WHERE param = 'last_name'), ''),
+           COALESCE(MAX(value) FILTER (WHERE param = 'ava'), ''),
+           MAX(value) FILTER (WHERE param = 'account_role'),
+           MAX(value) FILTER (WHERE param = 'shine'),
+           COALESCE(MAX(time_ms), 0)
+    INTO v_first_name, v_last_name, v_ava_ar, v_account_role, v_shine, v_updated
+    FROM users_params
+    WHERE LOWER(login) = LOWER(p_login);
+
+    v_account_role := LOWER(BTRIM(COALESCE(v_account_role, '')));
+    IF v_account_role NOT IN ('primary', 'non_voting') THEN v_account_role := NULL; END IF;
+
+    v_shine := LOWER(BTRIM(COALESCE(v_shine, '')));
+    IF v_shine = 'yes' THEN v_shine := 'shining'; END IF; -- legacy compatibility
+    IF v_shine NOT IN ('shining', 'unknown', 'not_interested') THEN v_shine := NULL; END IF;
+
+    INSERT INTO user_profile_state(login, first_name, last_name, ava_ar, account_role, shine_status, updated_at_ms)
+    VALUES (p_login, v_first_name, v_last_name, v_ava_ar, v_account_role, v_shine, v_updated)
+    ON CONFLICT (login) DO UPDATE SET
+        first_name = EXCLUDED.first_name,
+        last_name = EXCLUDED.last_name,
+        ava_ar = EXCLUDED.ava_ar,
+        account_role = EXCLUDED.account_role,
+        shine_status = EXCLUDED.shine_status,
+        updated_at_ms = EXCLUDED.updated_at_ms;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION shine_is_primary(p_login TEXT)
+RETURNS BOOLEAN
+LANGUAGE sql
+STABLE
+AS $$
+    SELECT COALESCE((SELECT account_role = 'primary' FROM user_profile_state WHERE LOWER(login)=LOWER(p_login) LIMIT 1), FALSE)
+$$;
+
+CREATE OR REPLACE FUNCTION shine_is_shining(p_login TEXT)
+RETURNS BOOLEAN
+LANGUAGE sql
+STABLE
+AS $$
+    SELECT COALESCE((SELECT shine_status = 'shining' FROM user_profile_state WHERE LOWER(login)=LOWER(p_login) LIMIT 1), FALSE)
+$$;
+
+CREATE OR REPLACE FUNCTION shine_target_accepts_primary_confirmation(p_login TEXT)
+RETURNS BOOLEAN
+LANGUAGE sql
+STABLE
+AS $$
+    SELECT COALESCE((SELECT account_role IS DISTINCT FROM 'non_voting' FROM user_profile_state WHERE LOWER(login)=LOWER(p_login) LIMIT 1), TRUE)
+$$;
+
+CREATE OR REPLACE FUNCTION shine_target_accepts_shine_confirmation(p_login TEXT)
+RETURNS BOOLEAN
+LANGUAGE sql
+STABLE
+AS $$
+    SELECT COALESCE((SELECT shine_status IS DISTINCT FROM 'not_interested' FROM user_profile_state WHERE LOWER(login)=LOWER(p_login) LIMIT 1), TRUE)
+$$;
+
+CREATE OR REPLACE FUNCTION shine_refresh_user_stats(p_login TEXT)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    v_now BIGINT := CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT);
+BEGIN
+    IF p_login IS NULL OR btrim(p_login) = '' THEN RETURN; END IF;
+
+    INSERT INTO user_stats_state(login, owned_public_channels_count, following_users_count,
+        following_channels_count, close_friends_count, friends_count,
+        primary_confirmations_received_count, primary_confirmations_given_count,
+        shine_confirmations_received_count, shine_confirmations_given_count, updated_at_ms)
+    SELECT p_login,
+        (SELECT COUNT(*)::INT FROM channel_names_state cn WHERE LOWER(cn.owner_login)=LOWER(p_login) AND cn.channel_type_code=1),
+        0,
+        (SELECT COUNT(*)::INT FROM connections_state cs JOIN channel_names_state cn
+            ON cn.owner_bch_name=cs.to_bch_name AND cn.channel_root_block_number=cs.to_block_number AND cn.channel_root_block_hash=cs.to_block_hash
+            WHERE LOWER(cs.login)=LOWER(p_login) AND cs.rel_type=30 AND cn.channel_type_code=1),
+        (SELECT COUNT(DISTINCT LOWER(cs.to_login))::INT FROM connections_state cs WHERE LOWER(cs.login)=LOWER(p_login) AND cs.rel_type=10),
+        (SELECT COUNT(DISTINCT LOWER(cs.to_login))::INT FROM connections_state cs
+            WHERE LOWER(cs.login)=LOWER(p_login) AND cs.rel_type=14
+              AND NOT EXISTS (SELECT 1 FROM connections_state cf WHERE LOWER(cf.login)=LOWER(p_login) AND LOWER(cf.to_login)=LOWER(cs.to_login) AND cf.rel_type=10)),
+        (SELECT COUNT(DISTINCT LOWER(cs.login))::INT FROM connections_state cs
+            WHERE LOWER(cs.to_login)=LOWER(p_login) AND cs.rel_type=80
+              AND shine_is_primary(cs.login) AND shine_target_accepts_primary_confirmation(p_login)),
+        (SELECT COUNT(DISTINCT LOWER(cs.to_login))::INT FROM connections_state cs
+            WHERE LOWER(cs.login)=LOWER(p_login) AND cs.rel_type=80
+              AND shine_is_primary(p_login) AND shine_target_accepts_primary_confirmation(cs.to_login)),
+        (SELECT COUNT(DISTINCT LOWER(cs.login))::INT FROM connections_state cs
+            WHERE LOWER(cs.to_login)=LOWER(p_login) AND cs.rel_type=70
+              AND shine_is_primary(cs.login) AND shine_is_shining(cs.login) AND shine_target_accepts_shine_confirmation(p_login)),
+        (SELECT COUNT(DISTINCT LOWER(cs.to_login))::INT FROM connections_state cs
+            WHERE LOWER(cs.login)=LOWER(p_login) AND cs.rel_type=70
+              AND shine_is_primary(p_login) AND shine_is_shining(p_login) AND shine_target_accepts_shine_confirmation(cs.to_login)),
+        v_now
+    ON CONFLICT (login) DO UPDATE SET
+        owned_public_channels_count=EXCLUDED.owned_public_channels_count,
+        following_users_count=0,
+        following_channels_count=EXCLUDED.following_channels_count,
+        close_friends_count=EXCLUDED.close_friends_count,
+        friends_count=EXCLUDED.friends_count,
+        primary_confirmations_received_count=EXCLUDED.primary_confirmations_received_count,
+        primary_confirmations_given_count=EXCLUDED.primary_confirmations_given_count,
+        shine_confirmations_received_count=EXCLUDED.shine_confirmations_received_count,
+        shine_confirmations_given_count=EXCLUDED.shine_confirmations_given_count,
+        updated_at_ms=EXCLUDED.updated_at_ms;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION shine_refresh_related_user_stats(p_login TEXT)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE r RECORD;
+BEGIN
+    PERFORM shine_refresh_user_stats(p_login);
+    FOR r IN
+        SELECT DISTINCT x.login FROM (
+            SELECT cs.login FROM connections_state cs WHERE LOWER(cs.to_login)=LOWER(p_login) AND cs.rel_type IN (70,80)
+            UNION
+            SELECT cs.to_login AS login FROM connections_state cs WHERE LOWER(cs.login)=LOWER(p_login) AND cs.rel_type IN (70,80)
+        ) x
+    LOOP
+        PERFORM shine_refresh_user_stats(r.login);
+    END LOOP;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION shine_refresh_message_qualified_likes_for_actor(p_login TEXT)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE r RECORD;
+BEGIN
+    FOR r IN
+        SELECT DISTINCT rs.to_login, rs.to_bch_name, rs.to_block_number, rs.to_block_hash
+        FROM reactions_state rs
+        WHERE LOWER(rs.from_login)=LOWER(p_login) AND rs.reaction_type=1 AND rs.last_sub_type=1
+    LOOP
+        UPDATE message_stats ms SET
+            primary_likes_count=(SELECT COUNT(*)::INT FROM reactions_state x WHERE x.reaction_type=1 AND x.last_sub_type=1
+                AND x.to_login=r.to_login AND x.to_bch_name=r.to_bch_name AND x.to_block_number=r.to_block_number AND x.to_block_hash=r.to_block_hash
+                AND shine_is_primary(x.from_login)),
+            shining_likes_count=(SELECT COUNT(*)::INT FROM reactions_state x WHERE x.reaction_type=1 AND x.last_sub_type=1
+                AND x.to_login=r.to_login AND x.to_bch_name=r.to_bch_name AND x.to_block_number=r.to_block_number AND x.to_block_hash=r.to_block_hash
+                AND shine_is_primary(x.from_login) AND shine_is_shining(x.from_login))
+        WHERE ms.to_login=r.to_login AND ms.to_bch_name=r.to_bch_name AND ms.to_block_number=r.to_block_number AND ms.to_block_hash=r.to_block_hash;
+    END LOOP;
+END;
+$$;
+
+
+CREATE OR REPLACE FUNCTION shine_refresh_channel_follow_stats(p_bch_name TEXT, p_block_number INTEGER, p_block_hash BYTEA)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    v_owner_login TEXT;
+    v_channel_type INTEGER;
+    v_count INTEGER := 0;
+    v_now BIGINT := CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT);
+BEGIN
+    IF p_bch_name IS NULL OR p_block_number IS NULL OR p_block_hash IS NULL OR p_block_number <= 0 THEN RETURN; END IF;
+
+    SELECT cn.owner_login, cn.channel_type_code
+      INTO v_owner_login, v_channel_type
+      FROM channel_names_state cn
+     WHERE cn.owner_bch_name=p_bch_name
+       AND cn.channel_root_block_number=p_block_number
+       AND cn.channel_root_block_hash=p_block_hash
+     LIMIT 1;
+
+    IF v_channel_type IS NULL THEN RETURN; END IF;
+
+    SELECT COUNT(DISTINCT LOWER(cs.login))::INT
+      INTO v_count
+      FROM connections_state cs
+     WHERE cs.rel_type=30
+       AND cs.to_bch_name=p_bch_name
+       AND cs.to_block_number=p_block_number
+       AND cs.to_block_hash=p_block_hash;
+
+    INSERT INTO channel_stats_state(owner_bch_name,channel_root_block_number,channel_root_block_hash,owner_login,channel_type_code,subscribers_count,updated_at_ms)
+    VALUES(p_bch_name,p_block_number,p_block_hash,COALESCE(v_owner_login,''),v_channel_type,v_count,v_now)
+    ON CONFLICT(owner_bch_name,channel_root_block_number,channel_root_block_hash) DO UPDATE SET
+        owner_login=EXCLUDED.owner_login,
+        channel_type_code=EXCLUDED.channel_type_code,
+        subscribers_count=EXCLUDED.subscribers_count,
+        updated_at_ms=EXCLUDED.updated_at_ms;
+END;
+$$;
+
+-- Replace incremental channel-name counter with idempotent recomputation.
+CREATE OR REPLACE FUNCTION shine_channel_names_state_stats_ai()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+BEGIN
+    IF NEW.channel_type_code = 1 THEN
+        PERFORM shine_refresh_user_stats(NEW.owner_login);
+    END IF;
+    RETURN NEW;
+END;
+$$;
+
+-- Rebuild connection state without incremental user counters; then recompute affected users.
+CREATE OR REPLACE FUNCTION shine_blocks_connection_state_ai()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    resolved_login TEXT;
+    positive_rel_type INTEGER;
+BEGIN
+    IF NEW.msg_type <> 3 THEN RETURN NEW; END IF;
+    resolved_login := shine_resolve_login(NEW.to_login, NEW.to_bch_name);
+    IF resolved_login IS NULL OR NEW.to_bch_name IS NULL THEN RETURN NEW; END IF;
+
+    IF NEW.msg_sub_type IN (10,14,20,30,40,50,52,54,60,70,74,80) THEN
+        DELETE FROM connections_state WHERE login=NEW.login AND rel_type=NEW.msg_sub_type AND to_login=resolved_login
+            AND to_bch_name=NEW.to_bch_name AND to_block_number=COALESCE(NEW.to_block_number,0)
+            AND to_block_hash=COALESCE(NEW.to_block_hash,decode(repeat('00',32),'hex'));
+        INSERT INTO connections_state(login,rel_type,to_login,to_bch_name,to_block_number,to_block_hash)
+        VALUES(NEW.login,NEW.msg_sub_type,resolved_login,NEW.to_bch_name,COALESCE(NEW.to_block_number,0),COALESCE(NEW.to_block_hash,decode(repeat('00',32),'hex')));
+    ELSE
+        positive_rel_type := CASE NEW.msg_sub_type WHEN 11 THEN 10 WHEN 15 THEN 14 WHEN 21 THEN 20 WHEN 31 THEN 30 WHEN 41 THEN 40
+            WHEN 51 THEN 50 WHEN 53 THEN 52 WHEN 55 THEN 54 WHEN 61 THEN 60 WHEN 71 THEN 70 WHEN 75 THEN 74 WHEN 81 THEN 80 ELSE NULL END;
+        IF positive_rel_type IS NULL THEN RETURN NEW; END IF;
+        DELETE FROM connections_state WHERE login=NEW.login AND rel_type=positive_rel_type AND to_login=resolved_login
+            AND to_bch_name=NEW.to_bch_name AND to_block_number=COALESCE(NEW.to_block_number,0)
+            AND to_block_hash=COALESCE(NEW.to_block_hash,decode(repeat('00',32),'hex'));
+    END IF;
+
+    PERFORM shine_refresh_user_stats(NEW.login);
+    PERFORM shine_refresh_user_stats(resolved_login);
+    IF NEW.msg_sub_type IN (30,31) AND NEW.to_block_number IS NOT NULL AND NEW.to_block_number > 0 AND NEW.to_block_hash IS NOT NULL THEN
+        PERFORM shine_refresh_channel_follow_stats(NEW.to_bch_name, NEW.to_block_number, NEW.to_block_hash);
+    END IF;
+    RETURN NEW;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION shine_blocks_message_stats_like_ai()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+DECLARE previous_sub_type INTEGER;
+BEGIN
+    IF NEW.msg_type<>2 OR NEW.msg_sub_type NOT IN (1,2) THEN RETURN NEW; END IF;
+    IF NEW.to_login IS NULL OR NEW.to_bch_name IS NULL OR NEW.to_block_number IS NULL OR NEW.to_block_hash IS NULL THEN RETURN NEW; END IF;
+
+    INSERT INTO message_stats(to_login,to_bch_name,to_block_number,to_block_hash,likes_count,primary_likes_count,shining_likes_count,replies_count,edits_count)
+    VALUES(NEW.to_login,NEW.to_bch_name,NEW.to_block_number,NEW.to_block_hash,0,0,0,0,0)
+    ON CONFLICT(to_login,to_bch_name,to_block_number,to_block_hash) DO NOTHING;
+
+    SELECT last_sub_type INTO previous_sub_type FROM reactions_state WHERE from_login=NEW.login AND from_bch_name=NEW.bch_name AND reaction_type=1
+        AND to_login=NEW.to_login AND to_bch_name=NEW.to_bch_name AND to_block_number=NEW.to_block_number AND to_block_hash=NEW.to_block_hash LIMIT 1;
+
+    IF NEW.msg_sub_type=1 AND previous_sub_type IS DISTINCT FROM 1 THEN
+        UPDATE message_stats SET likes_count=likes_count+1,
+            primary_likes_count=primary_likes_count + CASE WHEN shine_is_primary(NEW.login) THEN 1 ELSE 0 END,
+            shining_likes_count=shining_likes_count + CASE WHEN shine_is_primary(NEW.login) AND shine_is_shining(NEW.login) THEN 1 ELSE 0 END
+        WHERE to_login=NEW.to_login AND to_bch_name=NEW.to_bch_name AND to_block_number=NEW.to_block_number AND to_block_hash=NEW.to_block_hash;
+    ELSIF NEW.msg_sub_type=2 AND previous_sub_type=1 THEN
+        UPDATE message_stats SET likes_count=GREATEST(0,likes_count-1),
+            primary_likes_count=GREATEST(0,primary_likes_count - CASE WHEN shine_is_primary(NEW.login) THEN 1 ELSE 0 END),
+            shining_likes_count=GREATEST(0,shining_likes_count - CASE WHEN shine_is_primary(NEW.login) AND shine_is_shining(NEW.login) THEN 1 ELSE 0 END)
+        WHERE to_login=NEW.to_login AND to_bch_name=NEW.to_bch_name AND to_block_number=NEW.to_block_number AND to_block_hash=NEW.to_block_hash;
+    END IF;
+
+    INSERT INTO reactions_state(from_login,from_bch_name,reaction_type,to_login,to_bch_name,to_block_number,to_block_hash,last_sub_type)
+    VALUES(NEW.login,NEW.bch_name,1,NEW.to_login,NEW.to_bch_name,NEW.to_block_number,NEW.to_block_hash,NEW.msg_sub_type)
+    ON CONFLICT(from_login,from_bch_name,reaction_type,to_login,to_bch_name,to_block_number,to_block_hash) DO UPDATE SET last_sub_type=EXCLUDED.last_sub_type;
+    RETURN NEW;
+END;
+$$;
+
+-- Initial projection/rebuild.
+DO $$ DECLARE r RECORD; BEGIN
+    FOR r IN SELECT DISTINCT login FROM users_params LOOP PERFORM shine_refresh_user_profile(r.login); END LOOP;
+END $$;
+DO $$ DECLARE r RECORD; BEGIN
+    FOR r IN SELECT login FROM solana_user_pda_current LOOP PERFORM shine_refresh_user_stats(r.login); END LOOP;
+END $$;
+DO $$ DECLARE r RECORD; BEGIN
+    FOR r IN SELECT owner_bch_name, channel_root_block_number, channel_root_block_hash FROM channel_names_state WHERE channel_type_code=1 LOOP
+        PERFORM shine_refresh_channel_follow_stats(r.owner_bch_name, r.channel_root_block_number, r.channel_root_block_hash);
+    END LOOP;
+END $$;
+
+UPDATE message_stats ms SET
+    primary_likes_count=(SELECT COUNT(*)::INT FROM reactions_state rs WHERE rs.reaction_type=1 AND rs.last_sub_type=1
+        AND rs.to_login=ms.to_login AND rs.to_bch_name=ms.to_bch_name AND rs.to_block_number=ms.to_block_number AND rs.to_block_hash=ms.to_block_hash
+        AND shine_is_primary(rs.from_login)),
+    shining_likes_count=(SELECT COUNT(*)::INT FROM reactions_state rs WHERE rs.reaction_type=1 AND rs.last_sub_type=1
+        AND rs.to_login=ms.to_login AND rs.to_bch_name=ms.to_bch_name AND rs.to_block_number=ms.to_block_number AND rs.to_block_hash=ms.to_block_hash
+        AND shine_is_primary(rs.from_login) AND shine_is_shining(rs.from_login));
+
+INSERT INTO db_schema_version(id,schema_version,updated_at_ms)
+VALUES(1,18,CAST(EXTRACT(EPOCH FROM clock_timestamp())*1000 AS BIGINT))
+ON CONFLICT(id) DO UPDATE SET schema_version=EXCLUDED.schema_version, updated_at_ms=EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v19.sql

@@ -0,0 +1,83 @@
+BEGIN;
+
+-- v19: skip user_stats refresh for logins that are absent from solana_user_pda_current.
+-- This keeps bootstrap resilient to legacy rows that are still present in blocks.
+
+CREATE OR REPLACE FUNCTION shine_refresh_user_stats(p_login TEXT)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    v_now BIGINT := CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT);
+BEGIN
+    IF p_login IS NULL OR btrim(p_login) = '' THEN RETURN; END IF;
+    IF NOT EXISTS (
+        SELECT 1
+        FROM solana_user_pda_current
+        WHERE login = p_login
+        LIMIT 1
+    ) THEN
+        RETURN;
+    END IF;
+
+    INSERT INTO user_stats_state(login, owned_public_channels_count, following_users_count,
+        following_channels_count, close_friends_count, friends_count,
+        primary_confirmations_received_count, primary_confirmations_given_count,
+        shine_confirmations_received_count, shine_confirmations_given_count, updated_at_ms)
+    SELECT p_login,
+        (SELECT COUNT(*)::INT FROM channel_names_state cn WHERE LOWER(cn.owner_login)=LOWER(p_login) AND cn.channel_type_code=1),
+        0,
+        (SELECT COUNT(*)::INT FROM connections_state cs JOIN channel_names_state cn
+            ON cn.owner_bch_name=cs.to_bch_name AND cn.channel_root_block_number=cs.to_block_number AND cn.channel_root_block_hash=cs.to_block_hash
+            WHERE LOWER(cs.login)=LOWER(p_login) AND cs.rel_type=30 AND cn.channel_type_code=1),
+        (SELECT COUNT(DISTINCT LOWER(cs.to_login))::INT FROM connections_state cs WHERE LOWER(cs.login)=LOWER(p_login) AND cs.rel_type=10),
+        (SELECT COUNT(DISTINCT LOWER(cs.to_login))::INT FROM connections_state cs
+            WHERE LOWER(cs.login)=LOWER(p_login) AND cs.rel_type=14
+              AND NOT EXISTS (SELECT 1 FROM connections_state cf WHERE LOWER(cf.login)=LOWER(p_login) AND LOWER(cf.to_login)=LOWER(cs.to_login) AND cf.rel_type=10)),
+        (SELECT COUNT(DISTINCT LOWER(cs.login))::INT FROM connections_state cs
+            WHERE LOWER(cs.to_login)=LOWER(p_login) AND cs.rel_type=80
+              AND shine_is_primary(cs.login) AND shine_target_accepts_primary_confirmation(p_login)),
+        (SELECT COUNT(DISTINCT LOWER(cs.to_login))::INT FROM connections_state cs
+            WHERE LOWER(cs.login)=LOWER(p_login) AND cs.rel_type=80
+              AND shine_is_primary(p_login) AND shine_target_accepts_primary_confirmation(cs.to_login)),
+        (SELECT COUNT(DISTINCT LOWER(cs.login))::INT FROM connections_state cs
+            WHERE LOWER(cs.to_login)=LOWER(p_login) AND cs.rel_type=70
+              AND shine_is_primary(cs.login) AND shine_is_shining(cs.login) AND shine_target_accepts_shine_confirmation(p_login)),
+        (SELECT COUNT(DISTINCT LOWER(cs.to_login))::INT FROM connections_state cs
+            WHERE LOWER(cs.login)=LOWER(p_login) AND cs.rel_type=70
+              AND shine_is_primary(p_login) AND shine_is_shining(p_login) AND shine_target_accepts_shine_confirmation(cs.to_login)),
+        v_now
+    ON CONFLICT (login) DO UPDATE SET
+        owned_public_channels_count=EXCLUDED.owned_public_channels_count,
+        following_users_count=0,
+        following_channels_count=EXCLUDED.following_channels_count,
+        close_friends_count=EXCLUDED.close_friends_count,
+        friends_count=EXCLUDED.friends_count,
+        primary_confirmations_received_count=EXCLUDED.primary_confirmations_received_count,
+        primary_confirmations_given_count=EXCLUDED.primary_confirmations_given_count,
+        shine_confirmations_received_count=EXCLUDED.shine_confirmations_received_count,
+        shine_confirmations_given_count=EXCLUDED.shine_confirmations_given_count,
+        updated_at_ms=EXCLUDED.updated_at_ms;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION shine_refresh_related_user_stats(p_login TEXT)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE r RECORD;
+BEGIN
+    PERFORM shine_refresh_user_stats(p_login);
+    FOR r IN
+        SELECT DISTINCT x.login FROM (
+            SELECT cs.login FROM connections_state cs WHERE LOWER(cs.to_login)=LOWER(p_login) AND cs.rel_type IN (70,80)
+            UNION
+            SELECT cs.to_login AS login FROM connections_state cs WHERE LOWER(cs.login)=LOWER(p_login) AND cs.rel_type IN (70,80)
+        ) x
+    LOOP
+        PERFORM shine_refresh_user_stats(r.login);
+    END LOOP;
+END;
+$$;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v2.sql

@@ -0,0 +1,186 @@
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS user_access_servers_current (
+    user_login             TEXT NOT NULL REFERENCES solana_user_pda_current(login) ON DELETE CASCADE,
+    server_login           TEXT NOT NULL REFERENCES solana_user_pda_current(login) ON DELETE CASCADE,
+    server_url             TEXT NOT NULL,
+    server_client_key      TEXT NOT NULL,
+    user_record_number     INTEGER NOT NULL,
+    user_updated_at_ms     BIGINT NOT NULL,
+    server_record_number   INTEGER NOT NULL,
+    server_updated_at_ms   BIGINT NOT NULL,
+    refreshed_at_ms        BIGINT NOT NULL,
+    PRIMARY KEY (user_login, server_login)
+);
+
+CREATE INDEX IF NOT EXISTS idx_user_access_servers_user
+    ON user_access_servers_current(user_login);
+
+CREATE INDEX IF NOT EXISTS idx_user_access_servers_server
+    ON user_access_servers_current(server_login);
+
+CREATE OR REPLACE FUNCTION shine_refresh_user_access_servers_for_user(p_user_login TEXT)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+BEGIN
+    IF p_user_login IS NULL OR btrim(p_user_login) = '' THEN
+        RETURN;
+    END IF;
+
+    DELETE FROM user_access_servers_current
+    WHERE LOWER(user_login) = LOWER(p_user_login);
+
+    INSERT INTO user_access_servers_current (
+        user_login,
+        server_login,
+        server_url,
+        server_client_key,
+        user_record_number,
+        user_updated_at_ms,
+        server_record_number,
+        server_updated_at_ms,
+        refreshed_at_ms
+    )
+    SELECT
+        u.login,
+        s.login,
+        s.server_address,
+        s.client_key,
+        u.record_number,
+        u.updated_at_ms,
+        s.record_number,
+        s.updated_at_ms,
+        CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+    FROM solana_user_pda_current u
+    CROSS JOIN LATERAL (
+        SELECT login_value
+        FROM jsonb_array_elements_text(
+            CASE
+                WHEN btrim(COALESCE(u.access_servers_json, '')) = '' THEN '[]'::jsonb
+                ELSE u.access_servers_json::jsonb
+            END
+        ) WITH ORDINALITY AS access_server(login_value, ord)
+        WHERE ord <= 2
+    ) AS access_server
+    JOIN solana_user_pda_current s
+      ON LOWER(s.login) = LOWER(btrim(access_server.login_value))
+     AND s.is_server = TRUE
+     AND btrim(COALESCE(s.server_address, '')) <> ''
+    WHERE LOWER(u.login) = LOWER(p_user_login)
+    ON CONFLICT (user_login, server_login) DO UPDATE SET
+        server_url = EXCLUDED.server_url,
+        server_client_key = EXCLUDED.server_client_key,
+        user_record_number = EXCLUDED.user_record_number,
+        user_updated_at_ms = EXCLUDED.user_updated_at_ms,
+        server_record_number = EXCLUDED.server_record_number,
+        server_updated_at_ms = EXCLUDED.server_updated_at_ms,
+        refreshed_at_ms = EXCLUDED.refreshed_at_ms;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION shine_refresh_user_access_servers_for_server(p_server_login TEXT)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    affected_user RECORD;
+BEGIN
+    IF p_server_login IS NULL OR btrim(p_server_login) = '' THEN
+        RETURN;
+    END IF;
+
+    DELETE FROM user_access_servers_current
+    WHERE LOWER(server_login) = LOWER(p_server_login);
+
+    FOR affected_user IN
+        SELECT u.login
+        FROM solana_user_pda_current u
+        CROSS JOIN LATERAL (
+            SELECT login_value
+            FROM jsonb_array_elements_text(
+                CASE
+                    WHEN btrim(COALESCE(u.access_servers_json, '')) = '' THEN '[]'::jsonb
+                    ELSE u.access_servers_json::jsonb
+                END
+            ) WITH ORDINALITY AS access_server(login_value, ord)
+            WHERE ord <= 2
+        ) AS access_server
+        WHERE LOWER(btrim(access_server.login_value)) = LOWER(p_server_login)
+    LOOP
+        PERFORM shine_refresh_user_access_servers_for_user(affected_user.login);
+    END LOOP;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION shine_refresh_user_access_servers_all()
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    affected_user RECORD;
+BEGIN
+    TRUNCATE TABLE user_access_servers_current;
+
+    FOR affected_user IN
+        SELECT login
+        FROM solana_user_pda_current
+    LOOP
+        PERFORM shine_refresh_user_access_servers_for_user(affected_user.login);
+    END LOOP;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION trg_refresh_user_access_servers_from_user_pda_row()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+BEGIN
+    IF TG_OP = 'DELETE' THEN
+        PERFORM shine_refresh_user_access_servers_for_user(OLD.login);
+        PERFORM shine_refresh_user_access_servers_for_server(OLD.login);
+        RETURN OLD;
+    END IF;
+
+    IF TG_OP = 'UPDATE' AND LOWER(OLD.login) <> LOWER(NEW.login) THEN
+        PERFORM shine_refresh_user_access_servers_for_user(OLD.login);
+        PERFORM shine_refresh_user_access_servers_for_server(OLD.login);
+    END IF;
+
+    PERFORM shine_refresh_user_access_servers_for_user(NEW.login);
+    PERFORM shine_refresh_user_access_servers_for_server(NEW.login);
+    RETURN NEW;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION trg_refresh_user_access_servers_from_user_pda_truncate()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+BEGIN
+    TRUNCATE TABLE user_access_servers_current;
+    RETURN NULL;
+END;
+$$;
+
+DROP TRIGGER IF EXISTS trg_refresh_user_access_servers_row ON solana_user_pda_current;
+CREATE TRIGGER trg_refresh_user_access_servers_row
+AFTER INSERT OR UPDATE OR DELETE ON solana_user_pda_current
+FOR EACH ROW
+EXECUTE FUNCTION trg_refresh_user_access_servers_from_user_pda_row();
+
+DROP TRIGGER IF EXISTS trg_refresh_user_access_servers_truncate ON solana_user_pda_current;
+CREATE TRIGGER trg_refresh_user_access_servers_truncate
+AFTER TRUNCATE ON solana_user_pda_current
+FOR EACH STATEMENT
+EXECUTE FUNCTION trg_refresh_user_access_servers_from_user_pda_truncate();
+
+SELECT shine_refresh_user_access_servers_all();
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 2, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v20.sql

@@ -0,0 +1,19 @@
+-- Notifications v2: three categories + signed seen watermarks.
+
+ALTER TABLE user_notifications_state
+    DROP CONSTRAINT IF EXISTS user_notifications_state_notification_kind_check;
+ALTER TABLE user_notifications_state
+    ADD CONSTRAINT user_notifications_state_notification_kind_check
+    CHECK (notification_kind IN ('reply', 'connection', 'event'));
+
+CREATE TABLE IF NOT EXISTS user_notification_seen_state (
+    owner_login       VARCHAR(60) NOT NULL,
+    category          TEXT NOT NULL CHECK (category IN ('replies', 'connections', 'events')),
+    seen_at_ms        BIGINT NOT NULL DEFAULT 0,
+    signed_blob       BYTEA NOT NULL,
+    signed_at_ms      BIGINT NOT NULL,
+    updated_at_ms     BIGINT NOT NULL,
+    PRIMARY KEY (owner_login, category)
+);
+
+UPDATE db_schema_version SET schema_version = 20 WHERE id = 1;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v3.sql

@@ -0,0 +1,47 @@
+BEGIN;
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_sync_cursor
+    ON signed_messages(target_login, created_at_ms, message_key);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_sync_cursor_lower
+    ON signed_messages(LOWER(target_login), created_at_ms, message_key);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_delete_from_sync_cursor
+    ON signed_messages(from_login, created_at_ms, message_key)
+    WHERE message_type IN (5, 6, 7, 8);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_delete_to_sync_cursor
+    ON signed_messages(to_login, created_at_ms, message_key)
+    WHERE message_type IN (5, 6, 7, 8);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_delete_from_sync_cursor_lower
+    ON signed_messages(LOWER(from_login), created_at_ms, message_key)
+    WHERE message_type IN (5, 6, 7, 8);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_delete_to_sync_cursor_lower
+    ON signed_messages(LOWER(to_login), created_at_ms, message_key)
+    WHERE message_type IN (5, 6, 7, 8);
+
+CREATE TABLE IF NOT EXISTS dm_sync_peer_state (
+    owner_login             TEXT NOT NULL,
+    remote_server_login     TEXT NOT NULL,
+    remote_server_url       TEXT NOT NULL,
+    cursor_stored_at_ms     BIGINT NOT NULL DEFAULT 0,
+    cursor_message_key      TEXT NOT NULL DEFAULT '',
+    bootstrap_completed     BOOLEAN NOT NULL DEFAULT FALSE,
+    last_sync_at_ms         BIGINT,
+    last_error              TEXT,
+    updated_at_ms           BIGINT NOT NULL,
+    PRIMARY KEY (owner_login, remote_server_login)
+);
+
+CREATE INDEX IF NOT EXISTS idx_dm_sync_peer_state_owner
+    ON dm_sync_peer_state(owner_login);
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 3, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v4.sql

@@ -0,0 +1,15 @@
+BEGIN;
+
+ALTER TABLE channel_names_state
+    ADD COLUMN IF NOT EXISTS ava_ar TEXT NOT NULL DEFAULT '',
+    ADD COLUMN IF NOT EXISTS ava_sha256 TEXT NOT NULL DEFAULT '',
+    ADD COLUMN IF NOT EXISTS ava_size BIGINT NOT NULL DEFAULT 0,
+    ADD COLUMN IF NOT EXISTS meta_updated_at_ms BIGINT NOT NULL DEFAULT 0;
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 4, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v5.sql

@@ -0,0 +1,83 @@
+BEGIN;
+
+ALTER TABLE solana_user_pda_current
+    ADD COLUMN IF NOT EXISTS normalized_login TEXT;
+
+UPDATE solana_user_pda_current
+SET normalized_login = LOWER(BTRIM(login))
+WHERE normalized_login IS NULL
+   OR normalized_login <> LOWER(BTRIM(login));
+
+ALTER TABLE solana_user_pda_current
+    ALTER COLUMN normalized_login SET NOT NULL;
+
+CREATE UNIQUE INDEX IF NOT EXISTS uq_solana_user_pda_current_normalized_login
+    ON solana_user_pda_current(normalized_login);
+
+CREATE INDEX IF NOT EXISTS idx_user_pda_current_normalized_login
+    ON solana_user_pda_current(normalized_login);
+
+WITH bad_signed_messages AS (
+    SELECT DISTINCT sm.message_key
+    FROM signed_messages sm
+    LEFT JOIN solana_user_pda_current u_from
+      ON u_from.normalized_login = LOWER(BTRIM(sm.from_login))
+    LEFT JOIN solana_user_pda_current u_to
+      ON u_to.normalized_login = LOWER(BTRIM(sm.to_login))
+    WHERE (u_from.login IS NOT NULL AND sm.from_login <> u_from.login)
+       OR (u_to.login IS NOT NULL AND sm.to_login <> u_to.login)
+)
+DELETE FROM signed_message_session_delivery d
+USING bad_signed_messages bad
+WHERE d.message_key = bad.message_key;
+
+WITH bad_signed_messages AS (
+    SELECT DISTINCT sm.message_key
+    FROM signed_messages sm
+    LEFT JOIN solana_user_pda_current u_from
+      ON u_from.normalized_login = LOWER(BTRIM(sm.from_login))
+    LEFT JOIN solana_user_pda_current u_to
+      ON u_to.normalized_login = LOWER(BTRIM(sm.to_login))
+    WHERE (u_from.login IS NOT NULL AND sm.from_login <> u_from.login)
+       OR (u_to.login IS NOT NULL AND sm.to_login <> u_to.login)
+)
+DELETE FROM signed_messages sm
+USING bad_signed_messages bad
+WHERE sm.message_key = bad.message_key;
+
+DELETE FROM signed_direct_messages_history h
+USING solana_user_pda_current u_from,
+      solana_user_pda_current u_to
+WHERE u_from.normalized_login = LOWER(BTRIM(h.from_login))
+  AND u_to.normalized_login = LOWER(BTRIM(h.to_login))
+  AND (h.from_login <> u_from.login OR h.to_login <> u_to.login);
+
+DELETE FROM signed_direct_message_replay r
+USING solana_user_pda_current u_from
+WHERE u_from.normalized_login = LOWER(BTRIM(r.from_login))
+  AND r.from_login <> u_from.login;
+
+DO $$
+BEGIN
+    IF EXISTS (
+        SELECT 1
+        FROM information_schema.tables
+        WHERE table_schema = current_schema()
+          AND table_name = 'direct_messages'
+    ) THEN
+        DELETE FROM direct_messages d
+        USING solana_user_pda_current u_from,
+              solana_user_pda_current u_to
+        WHERE u_from.normalized_login = LOWER(BTRIM(d.from_login))
+          AND u_to.normalized_login = LOWER(BTRIM(d.to_login))
+          AND (d.from_login <> u_from.login OR d.to_login <> u_to.login);
+    END IF;
+END $$;
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 5, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v6.sql

@@ -0,0 +1,21 @@
+BEGIN;
+
+ALTER TABLE signed_messages
+    DROP CONSTRAINT IF EXISTS signed_messages_from_login_fkey;
+
+ALTER TABLE signed_messages
+    DROP CONSTRAINT IF EXISTS signed_messages_to_login_fkey;
+
+ALTER TABLE signed_direct_messages_history
+    DROP CONSTRAINT IF EXISTS signed_direct_messages_history_from_login_fkey;
+
+ALTER TABLE signed_direct_messages_history
+    DROP CONSTRAINT IF EXISTS signed_direct_messages_history_to_login_fkey;
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 6, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v7.sql

@@ -0,0 +1,16 @@
+BEGIN;
+
+ALTER TABLE blocks
+    DROP CONSTRAINT IF EXISTS blocks_login_fkey;
+
+ALTER TABLE blocks
+    ADD CONSTRAINT blocks_login_fkey
+        FOREIGN KEY (login) REFERENCES solana_user_pda_current(normalized_login);
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 7, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v8.sql

@@ -0,0 +1,16 @@
+BEGIN;
+
+ALTER TABLE connections_state
+    DROP CONSTRAINT IF EXISTS connections_state_login_fkey;
+
+ALTER TABLE connections_state
+    ADD CONSTRAINT connections_state_login_fkey
+        FOREIGN KEY (login) REFERENCES solana_user_pda_current(normalized_login);
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 8, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v9.sql

@@ -0,0 +1,47 @@
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS user_settings (
+    login         TEXT NOT NULL REFERENCES solana_user_pda_current(login),
+    setting_type  INTEGER NOT NULL,
+    setting_key   TEXT NOT NULL,
+    time_ms       BIGINT NOT NULL,
+    value_text    TEXT NOT NULL DEFAULT '',
+    value_num     BIGINT NOT NULL DEFAULT 0,
+    client_key    TEXT NOT NULL DEFAULT '',
+    signature     TEXT NOT NULL DEFAULT '',
+    synced        BOOLEAN NOT NULL DEFAULT FALSE,
+    UNIQUE (login, setting_type, setting_key)
+);
+
+CREATE INDEX IF NOT EXISTS idx_user_settings_login
+    ON user_settings(login);
+
+CREATE INDEX IF NOT EXISTS idx_user_settings_synced
+    ON user_settings(login, synced, time_ms);
+
+CREATE INDEX IF NOT EXISTS idx_user_settings_type_key
+    ON user_settings(setting_type, setting_key);
+
+CREATE TABLE IF NOT EXISTS user_settings_sync_peer_state (
+    owner_login              TEXT NOT NULL,
+    remote_server_login      TEXT NOT NULL,
+    remote_server_url        TEXT NOT NULL,
+    cursor_time_ms           BIGINT NOT NULL DEFAULT 0,
+    cursor_setting_key       TEXT NOT NULL DEFAULT '',
+    bootstrap_completed      BOOLEAN NOT NULL DEFAULT FALSE,
+    last_sync_at_ms          BIGINT,
+    last_error               TEXT,
+    updated_at_ms            BIGINT NOT NULL,
+    PRIMARY KEY (owner_login, remote_server_login)
+);
+
+CREATE INDEX IF NOT EXISTS idx_user_settings_sync_peer_state_owner
+    ON user_settings_sync_peer_state(owner_login);
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 9, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/ConnectionContext.java

@@ -1,9 +1,11 @@
 package server.logic.ws_protocol.JSON;
 
 import org.eclipse.jetty.websocket.api.Session;
-import shine.db.entities.SolanaUserEntry;
+import shine.db.entities.CurrentUserEntry;
 import shine.db.entities.ActiveSessionEntry;
 
+import java.util.List;
+
 /**
  * ConnectionContext — контекст состояния одного WebSocket-соединения.
  * Живёт ровно столько же, сколько живёт подключение.
@@ -25,8 +27,13 @@ public class ConnectionContext {
     public static final int AUTH_STATUS_AUTH_IN_PROGRESS = 1;  // выполнен challenge (AuthChallenge или SessionChallenge)
     public static final int AUTH_STATUS_USER = 2;              // авторизованный пользователь
 
-    // Полный пользователь из БД (solana_users)
+    // При успешной авторизации отдельно фиксируем отношение пользователя к этому серверу.
-    private SolanaUserEntry solanaUserEntry;
+    public static final int USER_SERVER_SCOPE_NONE = 0;
+    public static final int USER_SERVER_SCOPE_LOCAL = 1;
+    public static final int USER_SERVER_SCOPE_REMOTE = 2;
+
+    // Полный пользователь из runtime БД (current users / solana_user_pda_current)
+    private CurrentUserEntry currentUserEntry;
 
     // Активная сессия из БД (active_sessions)
     private ActiveSessionEntry activeSessionEntry;
@@ -71,12 +78,24 @@ public class ConnectionContext {
      */
     private int authenticationStatus = AUTH_STATUS_NONE;
 
+    /**
+     * LOCAL — этот сервер является первым access server пользователя.
+     * REMOTE — пользователь криптографически авторизован, но его access server другой.
+     */
+    private int userServerScope = USER_SERVER_SCOPE_NONE;
+
     /**
      * WebSocket-сессия Jetty для данного подключения.
      * Нужна, чтобы через ConnectionContext можно было отправлять сообщения клиенту.
      */
     private Session wsSession;
 
+    /** Временная server-to-server роль, заявленная через ServerHello. */
+    private boolean serverConnection;
+    private String remoteServerLogin;
+    private int remoteServerProtocolVersion;
+    private List<String> remoteServerCapabilities = List.of();
+
     // --- WebSocket Session ---
 
     public Session getWsSession() {
@@ -87,14 +106,28 @@ public class ConnectionContext {
         this.wsSession = wsSession;
     }
 
-    // --- SolanaUser / ActiveSession ---
+    public boolean isServerConnection() { return serverConnection; }
+    public void setServerConnection(boolean serverConnection) { this.serverConnection = serverConnection; }
 
-    public SolanaUserEntry getSolanaUser() {
+    public String getRemoteServerLogin() { return remoteServerLogin; }
-        return solanaUserEntry;
+    public void setRemoteServerLogin(String remoteServerLogin) { this.remoteServerLogin = remoteServerLogin; }
+
+    public int getRemoteServerProtocolVersion() { return remoteServerProtocolVersion; }
+    public void setRemoteServerProtocolVersion(int value) { this.remoteServerProtocolVersion = value; }
+
+    public List<String> getRemoteServerCapabilities() { return remoteServerCapabilities; }
+    public void setRemoteServerCapabilities(List<String> capabilities) {
+        this.remoteServerCapabilities = capabilities == null ? List.of() : List.copyOf(capabilities);
     }
 
-    public void setSolanaUser(SolanaUserEntry solanaUserEntry) {
+    // --- SolanaUser / ActiveSession ---
-        this.solanaUserEntry = solanaUserEntry;
+
+    public CurrentUserEntry getCurrentUser() {
+        return currentUserEntry;
+    }
+
+    public void setCurrentUser(CurrentUserEntry currentUserEntry) {
+        this.currentUserEntry = currentUserEntry;
     }
 
     public ActiveSessionEntry getActiveSession() {
@@ -108,7 +141,7 @@ public class ConnectionContext {
     // --- Удобный геттер для логина ---
 
     public String getLogin() {
-        return solanaUserEntry != null ? solanaUserEntry.getLogin() : null;
+        return currentUserEntry != null ? currentUserEntry.getLogin() : null;
     }
 
     // --- sessionId ---
@@ -175,8 +208,30 @@ public class ConnectionContext {
         return authenticationStatus == AUTH_STATUS_NONE;
     }
 
+    public int getUserServerScope() {
+        return userServerScope;
+    }
+
+    public void setUserServerScope(int userServerScope) {
+        this.userServerScope = userServerScope;
+    }
+
+    public boolean isLocalAuthenticatedUser() {
+        return isAuthenticatedUser() && userServerScope == USER_SERVER_SCOPE_LOCAL;
+    }
+
+    public boolean isRemoteAuthenticatedUser() {
+        return isAuthenticatedUser() && userServerScope == USER_SERVER_SCOPE_REMOTE;
+    }
+
+    public String getUserServerScopeName() {
+        return userServerScope == USER_SERVER_SCOPE_LOCAL ? "LOCAL"
+                : userServerScope == USER_SERVER_SCOPE_REMOTE ? "REMOTE"
+                : "NONE";
+    }
+
     public void reset() {
-        solanaUserEntry = null;
+        currentUserEntry = null;
         activeSessionEntry = null;
 
         sessionId = null;
@@ -187,7 +242,12 @@ public class ConnectionContext {
         sessionLoginNonceExpiresAtMs = 0;
 
         authenticationStatus = AUTH_STATUS_NONE;
+        userServerScope = USER_SERVER_SCOPE_NONE;
         wsSession = null;
+        serverConnection = false;
+        remoteServerLogin = null;
+        remoteServerProtocolVersion = 0;
+        remoteServerCapabilities = List.of();
     }
 
     @Override
@@ -196,6 +256,7 @@ public class ConnectionContext {
                 "login='" + getLogin() + '\'' +
                 ", sessionId=" + sessionId +
                 ", authenticationStatus=" + authenticationStatus +
+                ", userServerScope=" + getUserServerScopeName() +
                 '}';
     }
-}
+}

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/JsonHandlerRegistry.java

@@ -4,6 +4,7 @@ import server.logic.ws_protocol.JSON.entyties.Net_Request;
 import server.logic.ws_protocol.JSON.handlers.JsonMessageHandler;
 
 import server.logic.ws_protocol.JSON.handlers.auth.Net_AuthChallenge_Handler;
+import server.logic.ws_protocol.JSON.handlers.auth.Net_ResolveLoginForAuth_Handler;
 import server.logic.ws_protocol.JSON.handlers.auth.Net_CloseActiveSession_Handler;
 import server.logic.ws_protocol.JSON.handlers.auth.Net_CreateAuthSession__Handler;
 import server.logic.ws_protocol.JSON.handlers.auth.Net_ListSessions_Handler;
@@ -22,6 +23,7 @@ import server.logic.ws_protocol.JSON.handlers.auth.Net_UpsertEspPairingSettings_
 
 // --- auth entities ---
 import server.logic.ws_protocol.JSON.handlers.auth.entyties.Net_AuthChallenge_Request;
+import server.logic.ws_protocol.JSON.handlers.auth.entyties.Net_ResolveLoginForAuth_Request;
 import server.logic.ws_protocol.JSON.handlers.auth.entyties.Net_CloseActiveSession_Request;
 import server.logic.ws_protocol.JSON.handlers.auth.entyties.Net_CreateAuthSession_Request;
 import server.logic.ws_protocol.JSON.handlers.auth.entyties.Net_ListSessions_Request;
@@ -43,9 +45,6 @@ import server.logic.ws_protocol.JSON.handlers.blockchain.Net_GetBlockchainBlock_
 import server.logic.ws_protocol.JSON.handlers.blockchain.entyties.Net_AddBlock_Request;
 import server.logic.ws_protocol.JSON.handlers.blockchain.entyties.Net_GetBlockchainBlock_Request;
 
-import server.logic.ws_protocol.JSON.handlers.tempToTest.Net_AddUser_Handler;
-import server.logic.ws_protocol.JSON.handlers.tempToTest.entyties.Net_AddUser_Request;
-
 import server.logic.ws_protocol.JSON.handlers.tempToTest.Net_GetUser_Handler;
 import server.logic.ws_protocol.JSON.handlers.tempToTest.Net_TestGetFreeAvatarQuota_Handler;
 import server.logic.ws_protocol.JSON.handlers.tempToTest.Net_TestUploadFreeAvatar_Handler;
@@ -63,6 +62,12 @@ import server.logic.ws_protocol.JSON.handlers.userParams.Net_UpsertUserParam_Han
 import server.logic.ws_protocol.JSON.handlers.userParams.entyties.Net_GetUserParam_Request;
 import server.logic.ws_protocol.JSON.handlers.userParams.entyties.Net_ListUserParams_Request;
 import server.logic.ws_protocol.JSON.handlers.userParams.entyties.Net_UpsertUserParam_Request;
+import server.logic.ws_protocol.JSON.handlers.userSettings.Net_GetUserSetting_Handler;
+import server.logic.ws_protocol.JSON.handlers.userSettings.Net_ListUserSettings_Handler;
+import server.logic.ws_protocol.JSON.handlers.userSettings.Net_UpsertUserSetting_Handler;
+import server.logic.ws_protocol.JSON.handlers.userSettings.entyties.Net_GetUserSetting_Request;
+import server.logic.ws_protocol.JSON.handlers.userSettings.entyties.Net_ListUserSettings_Request;
+import server.logic.ws_protocol.JSON.handlers.userSettings.entyties.Net_UpsertUserSetting_Request;
 
 // --- NEW: connections friends lists ---
 import server.logic.ws_protocol.JSON.handlers.connections.Net_GetFriendsLists_Handler;
@@ -70,6 +75,7 @@ import server.logic.ws_protocol.JSON.handlers.connections.entyties.Net_GetFriend
 import server.logic.ws_protocol.JSON.handlers.channels.ChannelNamesStateBootstrapper;
 import server.logic.ws_protocol.JSON.handlers.channels.Net_GetChannelMessages_Handler;
 import server.logic.ws_protocol.JSON.handlers.channels.Net_GetMessageThread_Handler;
+import server.logic.ws_protocol.JSON.handlers.channels.Net_GetPersonalDiary_Handler;
 import server.logic.ws_protocol.JSON.handlers.channels.Net_GetGroupDialog_Handler;
 import server.logic.ws_protocol.JSON.handlers.channels.Net_GetChannelsCounters_Handler;
 import server.logic.ws_protocol.JSON.handlers.channels.Net_ListGroupChats200_Handler;
@@ -78,14 +84,23 @@ import server.logic.ws_protocol.JSON.handlers.channels.entyties.Net_GetChannelsC
 import server.logic.ws_protocol.JSON.handlers.channels.entyties.Net_GetChannelMessages_Request;
 import server.logic.ws_protocol.JSON.handlers.channels.entyties.Net_GetGroupDialog_Request;
 import server.logic.ws_protocol.JSON.handlers.channels.entyties.Net_GetMessageThread_Request;
+import server.logic.ws_protocol.JSON.handlers.channels.entyties.Net_GetPersonalDiary_Request;
 import server.logic.ws_protocol.JSON.handlers.channels.entyties.Net_ListGroupChats200_Request;
 import server.logic.ws_protocol.JSON.handlers.channels.entyties.Net_ListSubscriptionsFeed_Request;
 import server.logic.ws_protocol.JSON.handlers.connections.Net_GetUserConnectionsGraph_Handler;
+import server.logic.ws_protocol.JSON.handlers.profile.Net_ListUserProfileRelations_Handler;
+import server.logic.ws_protocol.JSON.handlers.profile.Net_ListUserProfileChannels_Handler;
+import server.logic.ws_protocol.JSON.handlers.profile.entyties.Net_ListUserProfileRelations_Request;
+import server.logic.ws_protocol.JSON.handlers.profile.entyties.Net_ListUserProfileChannels_Request;
 import server.logic.ws_protocol.JSON.handlers.connections.Net_AddCloseFriend_Handler;
 import server.logic.ws_protocol.JSON.handlers.connections.Net_ListContacts_Handler;
+import server.logic.ws_protocol.JSON.handlers.notifications.Net_GetNotifications_Handler;
+import server.logic.ws_protocol.JSON.handlers.notifications.Net_SetNotificationState_Handler;
 import server.logic.ws_protocol.JSON.handlers.connections.entyties.Net_GetUserConnectionsGraph_Request;
 import server.logic.ws_protocol.JSON.handlers.connections.entyties.Net_AddCloseFriend_Request;
 import server.logic.ws_protocol.JSON.handlers.connections.entyties.Net_ListContacts_Request;
+import server.logic.ws_protocol.JSON.handlers.notifications.entyties.Net_GetNotifications_Request;
+import server.logic.ws_protocol.JSON.handlers.notifications.entyties.Net_SetNotificationState_Request;
 import server.logic.ws_protocol.JSON.messages.Net_AckSessionDelivery_Handler;
 import server.logic.ws_protocol.JSON.messages.Net_CallInviteBroadcast_Handler;
 import server.logic.ws_protocol.JSON.messages.Net_CallSignalToSession_Handler;
@@ -94,7 +109,6 @@ import server.logic.ws_protocol.JSON.messages.Net_DeleteMessage_Handler;
 import server.logic.ws_protocol.JSON.messages.Net_GetDirectMessages_Handler;
 import server.logic.ws_protocol.JSON.messages.Net_SendSignal_Handler;
 import server.logic.ws_protocol.JSON.messages.Net_ReceiveIncomingMessage_Handler;
-import server.logic.ws_protocol.JSON.messages.Net_SendDirectMessage_Handler;
 import server.logic.ws_protocol.JSON.messages.Net_SendMessagePair_Handler;
 import server.logic.ws_protocol.JSON.messages.Net_SendTestWebPush_Handler;
 import server.logic.ws_protocol.JSON.messages.Net_UpsertPushToken_Handler;
@@ -106,7 +120,6 @@ import server.logic.ws_protocol.JSON.messages.entyties.Net_DeleteMessage_Request
 import server.logic.ws_protocol.JSON.messages.entyties.Net_GetDirectMessages_Request;
 import server.logic.ws_protocol.JSON.messages.entyties.Net_SendSignal_Request;
 import server.logic.ws_protocol.JSON.messages.entyties.Net_ReceiveIncomingMessage_Request;
-import server.logic.ws_protocol.JSON.messages.entyties.Net_SendDirectMessage_Request;
 import server.logic.ws_protocol.JSON.messages.entyties.Net_SendMessagePair_Request;
 import server.logic.ws_protocol.JSON.messages.entyties.Net_SendTestWebPush_Request;
 import server.logic.ws_protocol.JSON.messages.entyties.Net_UpsertPushToken_Request;
@@ -120,6 +133,7 @@ import server.logic.ws_protocol.JSON.handlers.system.Net_ClientDebugLog_Handler;
 import server.logic.ws_protocol.JSON.handlers.system.Net_ListBlockchainHeads_Handler;
 import server.logic.ws_protocol.JSON.handlers.system.Net_CallDeliveryReport_Handler;
 import server.logic.ws_protocol.JSON.handlers.system.Net_Ping_Handler;
+import server.logic.ws_protocol.JSON.handlers.system.Net_ServerHello_Handler;
 import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_CallDeliveryReport_Request;
 import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_ClientErrorLog_Request;
 import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_ClientDebugLog_Request;
@@ -128,6 +142,7 @@ import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_GetServerInfo_
 import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_GetSyncUserProfile_Request;
 import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_ListBlockchainHeads_Request;
 import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_Ping_Request;
+import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_ServerHello_Request;
 
 import java.util.Map;
 
@@ -142,13 +157,13 @@ public final class JsonHandlerRegistry {
     }
 
     private static final Map<String, JsonMessageHandler> HANDLERS = Map.ofEntries(
-            Map.entry("AddUser",            new Net_AddUser_Handler()),
             Map.entry("GetUser",            new Net_GetUser_Handler()),
             Map.entry("SearchUsers",        new Net_SearchUsers_Handler()),
             Map.entry("TestGetFreeAvatarQuota", new Net_TestGetFreeAvatarQuota_Handler()),
             Map.entry("TestUploadFreeAvatar", new Net_TestUploadFreeAvatar_Handler()),
 
             // --- auth ---
+            Map.entry("ResolveLoginForAuth", new Net_ResolveLoginForAuth_Handler()),
             Map.entry("AuthChallenge",      new Net_AuthChallenge_Handler()),
             Map.entry("CreateAuthSession",  new Net_CreateAuthSession__Handler()),
             Map.entry("CloseActiveSession", new Net_CloseActiveSession_Handler()),
@@ -182,23 +197,32 @@ public final class JsonHandlerRegistry {
             Map.entry("GetUserParam",       new Net_GetUserParam_Handler()),
             Map.entry("ListUserParams",     new Net_ListUserParams_Handler()),
 
+            // --- userSettings ---
+            Map.entry("UpsertUserSetting",  new Net_UpsertUserSetting_Handler()),
+            Map.entry("GetUserSetting",     new Net_GetUserSetting_Handler()),
+            Map.entry("ListUserSettings",   new Net_ListUserSettings_Handler()),
+
             // --- connections ---
             Map.entry("GetFriendsLists",    new Net_GetFriendsLists_Handler()),
             Map.entry("ListSubscriptionsFeed", new Net_ListSubscriptionsFeed_Handler()),
             Map.entry("GetChannelMessages", new Net_GetChannelMessages_Handler()),
+            Map.entry("GetPersonalDiary", new Net_GetPersonalDiary_Handler()),
             Map.entry("GetMessageThread", new Net_GetMessageThread_Handler()),
             Map.entry("GetGroupDialog", new Net_GetGroupDialog_Handler()),
             Map.entry("ListGroupChats200", new Net_ListGroupChats200_Handler()),
             Map.entry("GetChannelsCounters", new Net_GetChannelsCounters_Handler()),
             Map.entry("ListContacts", new Net_ListContacts_Handler()),
             Map.entry("GetUserConnectionsGraph", new Net_GetUserConnectionsGraph_Handler()),
+            Map.entry("ListUserProfileRelations", new Net_ListUserProfileRelations_Handler()),
+            Map.entry("ListUserProfileChannels", new Net_ListUserProfileChannels_Handler()),
             Map.entry("AddCloseFriend", new Net_AddCloseFriend_Handler()),
+            Map.entry("GetNotifications", new Net_GetNotifications_Handler()),
+            Map.entry("SetNotificationState", new Net_SetNotificationState_Handler()),
 
             // --- direct messages / push ---
             Map.entry("UpsertPushToken", new Net_UpsertPushToken_Handler()),
             Map.entry("SendTestWebPush", new Net_SendTestWebPush_Handler()),
             Map.entry("SendMessagePair", new Net_SendMessagePair_Handler()),
-            Map.entry("ReceiveOutcomingMessage", new Net_SendMessagePair_Handler()),
             Map.entry("ReceiveIncomingMessage", new Net_ReceiveIncomingMessage_Handler()),
             Map.entry("DeleteMessage", new Net_DeleteMessage_Handler()),
             Map.entry("DeleteConversation", new Net_DeleteConversation_Handler()),
@@ -209,6 +233,7 @@ public final class JsonHandlerRegistry {
             Map.entry("SendSignal", new Net_SendSignal_Handler()),
 
             // --- system ---
+            Map.entry("ServerHello",        new Net_ServerHello_Handler()),
             Map.entry("Ping",               new Net_Ping_Handler()),
             Map.entry("GetServerInfo",      new Net_GetServerInfo_Handler()),
             Map.entry("ListBlockchainHeads", new Net_ListBlockchainHeads_Handler()),
@@ -223,13 +248,13 @@ public final class JsonHandlerRegistry {
     );
 
     private static final Map<String, Class<? extends Net_Request>> REQUEST_TYPES = Map.ofEntries(
-            Map.entry("AddUser",            Net_AddUser_Request.class),
             Map.entry("GetUser",            Net_GetUser_Request.class),
             Map.entry("SearchUsers",        Net_SearchUsers_Request.class),
             Map.entry("TestGetFreeAvatarQuota", Net_TestGetFreeAvatarQuota_Request.class),
             Map.entry("TestUploadFreeAvatar", Net_TestUploadFreeAvatar_Request.class),
 
             // --- auth ---
+            Map.entry("ResolveLoginForAuth", Net_ResolveLoginForAuth_Request.class),
             Map.entry("AuthChallenge",      Net_AuthChallenge_Request.class),
             Map.entry("CreateAuthSession",  Net_CreateAuthSession_Request.class),
             Map.entry("CloseActiveSession", Net_CloseActiveSession_Request.class),
@@ -263,23 +288,32 @@ public final class JsonHandlerRegistry {
             Map.entry("GetUserParam",       Net_GetUserParam_Request.class),
             Map.entry("ListUserParams",     Net_ListUserParams_Request.class),
 
+            // --- userSettings ---
+            Map.entry("UpsertUserSetting",  Net_UpsertUserSetting_Request.class),
+            Map.entry("GetUserSetting",     Net_GetUserSetting_Request.class),
+            Map.entry("ListUserSettings",   Net_ListUserSettings_Request.class),
+
             // --- connections ---
             Map.entry("GetFriendsLists",    Net_GetFriendsLists_Request.class),
             Map.entry("ListSubscriptionsFeed", Net_ListSubscriptionsFeed_Request.class),
             Map.entry("GetChannelMessages", Net_GetChannelMessages_Request.class),
+            Map.entry("GetPersonalDiary", Net_GetPersonalDiary_Request.class),
             Map.entry("GetMessageThread", Net_GetMessageThread_Request.class),
             Map.entry("GetGroupDialog", Net_GetGroupDialog_Request.class),
             Map.entry("ListGroupChats200", Net_ListGroupChats200_Request.class),
             Map.entry("GetChannelsCounters", Net_GetChannelsCounters_Request.class),
             Map.entry("ListContacts", Net_ListContacts_Request.class),
             Map.entry("GetUserConnectionsGraph", Net_GetUserConnectionsGraph_Request.class),
+            Map.entry("ListUserProfileRelations", Net_ListUserProfileRelations_Request.class),
+            Map.entry("ListUserProfileChannels", Net_ListUserProfileChannels_Request.class),
             Map.entry("AddCloseFriend", Net_AddCloseFriend_Request.class),
+            Map.entry("GetNotifications", Net_GetNotifications_Request.class),
+            Map.entry("SetNotificationState", Net_SetNotificationState_Request.class),
 
             // --- direct messages / push ---
             Map.entry("UpsertPushToken", Net_UpsertPushToken_Request.class),
             Map.entry("SendTestWebPush", Net_SendTestWebPush_Request.class),
             Map.entry("SendMessagePair", Net_SendMessagePair_Request.class),
-            Map.entry("ReceiveOutcomingMessage", Net_SendMessagePair_Request.class),
             Map.entry("ReceiveIncomingMessage", Net_ReceiveIncomingMessage_Request.class),
             Map.entry("DeleteMessage", Net_DeleteMessage_Request.class),
             Map.entry("DeleteConversation", Net_DeleteConversation_Request.class),
@@ -290,6 +324,7 @@ public final class JsonHandlerRegistry {
             Map.entry("SendSignal", Net_SendSignal_Request.class),
 
             // --- system ---
+            Map.entry("ServerHello",        Net_ServerHello_Request.class),
             Map.entry("Ping",               Net_Ping_Request.class),
             Map.entry("GetServerInfo",      Net_GetServerInfo_Request.class),
             Map.entry("ListBlockchainHeads", Net_ListBlockchainHeads_Request.class),

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/JsonInboundProcessor.java

@@ -205,6 +205,22 @@ public final class JsonInboundProcessor {
                         ctxLogin, ctxSessionId, safe(op), safe(requestId), shorten(safeToString(request), 1200));
             }
 
+            // REMOTE-пользователь успешно авторизован, но этот сервер не является
+            // его access server. Такой контекст нужен для realtime/call signaling,
+            // однако обычные homeserver-операции здесь запрещены централизованно.
+            if (ctx != null
+                    && ctx.isRemoteAuthenticatedUser()
+                    && !RemoteUserOperationPolicy.isAllowed(op)) {
+                Net_Exception_Response err = NetExceptionResponseFactory.error(
+                        op,
+                        requestId,
+                        403,
+                        "USER_NOT_LOCAL",
+                        "Пользователь авторизован, но относится к другому access server"
+                );
+                return writeResponse(err);
+            }
+
             // 5) Вызываем хэндлер
             Net_Response response;
             try {

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/RemoteUserOperationPolicy.java

@@ -0,0 +1,31 @@
+package server.logic.ws_protocol.JSON;
+
+import java.util.Set;
+
+/**
+ * REMOTE-пользователь полностью авторизован криптографически, но этот сервер
+ * не является его access server. Поэтому ему разрешён только минимальный набор
+ * realtime/звонковых операций.
+ */
+public final class RemoteUserOperationPolicy {
+
+    private static final Set<String> ALLOWED = Set.of(
+            "Ping",
+            "GetServerInfo",
+            "GetCallIceConfig",
+            "CallInviteBroadcast",
+            "CallSignalToSession",
+            "SendSignal",
+            "CallDeliveryReport",
+            "ClientErrorLog",
+            "ClientDebugLog",
+            "CloseActiveSession",
+            "ResolveLoginForAuth"
+    );
+
+    private RemoteUserOperationPolicy() {}
+
+    public static boolean isAllowed(String op) {
+        return op != null && ALLOWED.contains(op);
+    }
+}

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/auth/AuthAccessScopeSupport.java

@@ -0,0 +1,81 @@
+package server.logic.ws_protocol.JSON.handlers.auth;
+
+import server.logic.ws_protocol.JSON.ConnectionContext;
+import shine.db.dao.CurrentUsersDAO;
+import shine.db.dao.UserAccessServersCurrentDAO;
+import shine.db.entities.CurrentUserEntry;
+import shine.db.entities.UserAccessServerRouteEntry;
+import utils.config.AppConfig;
+
+import java.sql.SQLException;
+import java.util.Locale;
+
+/**
+ * Единая серверная логика определения, является ли текущий сервер
+ * домашним access server для пользователя.
+ */
+public final class AuthAccessScopeSupport {
+
+    public static final String RESOLUTION_LOCAL = "LOCAL";
+    public static final String RESOLUTION_REMOTE = "REMOTE";
+    public static final String RESOLUTION_NOT_FOUND = "NOT_FOUND";
+    public static final String RESOLUTION_NO_ACCESS_SERVER = "NO_ACCESS_SERVER";
+
+    private static final String SERVER_LOGIN_CONFIG = "server.SHiNE.login";
+
+    private AuthAccessScopeSupport() {}
+
+    public static Resolution resolveLogin(String login) throws SQLException {
+        String cleanLogin = login == null ? "" : login.trim();
+        if (cleanLogin.isBlank()) {
+            return new Resolution(RESOLUTION_NOT_FOUND, null, null, null);
+        }
+
+        CurrentUserEntry user = CurrentUsersDAO.getInstance().getByLogin(cleanLogin);
+        if (user == null) {
+            return new Resolution(RESOLUTION_NOT_FOUND, null, null, null);
+        }
+
+        UserAccessServerRouteEntry route =
+                UserAccessServersCurrentDAO.getInstance().findPrimaryByUserLogin(user.getLogin());
+        if (route == null) {
+            return new Resolution(RESOLUTION_NO_ACCESS_SERVER, user, null, null);
+        }
+
+        String ownServerLogin = currentServerLogin();
+        String routeServerLogin = normalize(route.getServerLogin());
+        String resolution = ownServerLogin != null && ownServerLogin.equals(routeServerLogin)
+                ? RESOLUTION_LOCAL
+                : RESOLUTION_REMOTE;
+
+        return new Resolution(resolution, user, route, ownServerLogin);
+    }
+
+    public static int connectionScopeForLogin(String login) throws SQLException {
+        Resolution resolution = resolveLogin(login);
+        return RESOLUTION_LOCAL.equals(resolution.resolution())
+                ? ConnectionContext.USER_SERVER_SCOPE_LOCAL
+                : ConnectionContext.USER_SERVER_SCOPE_REMOTE;
+    }
+
+    public static String connectionScopeName(int scope) {
+        return scope == ConnectionContext.USER_SERVER_SCOPE_LOCAL ? "LOCAL" : "REMOTE";
+    }
+
+    public static String currentServerLogin() {
+        return normalize(AppConfig.getInstance().getParam(SERVER_LOGIN_CONFIG));
+    }
+
+    private static String normalize(String value) {
+        if (value == null) return null;
+        String normalized = value.trim().toLowerCase(Locale.ROOT);
+        return normalized.isEmpty() ? null : normalized;
+    }
+
+    public record Resolution(
+            String resolution,
+            CurrentUserEntry user,
+            UserAccessServerRouteEntry primaryAccessServer,
+            String currentServerLogin
+    ) {}
+}

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/auth/Net_AuthChallenge_Handler.java

@@ -9,8 +9,8 @@ import server.logic.ws_protocol.JSON.handlers.auth.entyties.Net_AuthChallenge_Re
 import server.logic.ws_protocol.JSON.handlers.auth.entyties.Net_AuthChallenge_Response;
 import server.logic.ws_protocol.JSON.utils.NetExceptionResponseFactory;
 import server.logic.ws_protocol.WireCodes;
-import shine.db.dao.SolanaUsersDAO;
+import shine.db.dao.CurrentUsersDAO;
-import shine.db.entities.SolanaUserEntry;
+import shine.db.entities.CurrentUserEntry;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -26,7 +26,7 @@ import java.security.SecureRandom;
  *
  * Что делает:
  * 1) Проверяет login.
- * 2) Находит пользователя (solana_users).
+ * 2) Находит пользователя в текущем PDA snapshot.
  * 3) Пишет solanaUser в ctx, ставит AUTH_STATUS_AUTH_IN_PROGRESS.
  * 4) Генерирует authNonce (base64url(32)) и сохраняет в ctx.authNonce.
  */
@@ -60,33 +60,18 @@ public class Net_AuthChallenge_Handler implements JsonMessageHandler {
             );
         }
 
-        SolanaUserEntry solanaUserEntry = SolanaUsersDAO.getInstance().getByLogin(login);
+        CurrentUserEntry solanaUserEntry = CurrentUsersDAO.getInstance().getByLogin(login);
-        if (solanaUserEntry == null) {
-            try {
-                solanaUserEntry = SolanaUserPdaImportService.findOrImportByLogin(login);
-                if (solanaUserEntry != null) {
-                    log.info("AuthChallenge: пользователь {} импортирован из Solana PDA", solanaUserEntry.getLogin());
-                }
-            } catch (Exception e) {
-                log.error("AuthChallenge: ошибка lazy-import пользователя {} из Solana", login, e);
-                return NetExceptionResponseFactory.error(
-                        req,
-                        WireCodes.Status.SERVER_DATA_ERROR,
-                        "SOLANA_IMPORT_FAILED",
-                        "Ошибка проверки пользователя в Solana"
-                );
-            }
-        }
         if (solanaUserEntry == null) {
             return NetExceptionResponseFactory.error(
-                    req,
+                req,
                     WireCodes.Status.UNVERIFIED,
                     "UNKNOWN_USER",
                     "Пользователь с таким логином не найден"
             );
         }
 
-        ctx.setSolanaUser(solanaUserEntry);
+        ctx.setCurrentUser(solanaUserEntry);
+        ctx.setUserServerScope(AuthAccessScopeSupport.connectionScopeForLogin(solanaUserEntry.getLogin()));
         ctx.setAuthenticationStatus(ConnectionContext.AUTH_STATUS_AUTH_IN_PROGRESS);
 
         byte[] buf = new byte[32];

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/auth/Net_CloseActiveSession_Handler.java

@@ -18,7 +18,7 @@ import server.logic.ws_protocol.WireCodes;
 import server.ws.WsConnectionUtils;
 import shine.db.dao.ActiveSessionsDAO;
 import shine.db.entities.ActiveSessionEntry;
-import shine.db.entities.SolanaUserEntry;
+import shine.db.entities.CurrentUserEntry;
 
 import java.sql.SQLException;
 
@@ -42,7 +42,7 @@ public class Net_CloseActiveSession_Handler implements JsonMessageHandler {
     public Net_Response handle(Net_Request baseReq, ConnectionContext ctx) throws Exception {
         Net_CloseActiveSession_Request req = (Net_CloseActiveSession_Request) baseReq;
 
-        if (ctx == null || ctx.getSolanaUser() == null || ctx.getAuthenticationStatus() != ConnectionContext.AUTH_STATUS_USER) {
+        if (ctx == null || ctx.getCurrentUser() == null || ctx.getAuthenticationStatus() != ConnectionContext.AUTH_STATUS_USER) {
             return NetExceptionResponseFactory.error(
                     req,
                     WireCodes.Status.UNVERIFIED,
@@ -51,7 +51,7 @@ public class Net_CloseActiveSession_Handler implements JsonMessageHandler {
             );
         }
 
-        SolanaUserEntry user = ctx.getSolanaUser();
+        CurrentUserEntry user = ctx.getCurrentUser();
         String currentLogin = user.getLogin();
 
         String targetSessionId = req.getSessionId();
@@ -152,4 +152,4 @@ public class Net_CloseActiveSession_Handler implements JsonMessageHandler {
             );
         }
     }
-}
+}

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/auth/Net_CreateAuthSession__Handler.java

@@ -15,9 +15,9 @@ import server.logic.ws_protocol.JSON.utils.NetExceptionResponseFactory;
 import server.logic.ws_protocol.WireCodes;
 import server.ws.WsConnectionUtils;
 import shine.db.dao.ActiveSessionsDAO;
-import shine.db.dao.SolanaUsersDAO;
+import shine.db.dao.CurrentUsersDAO;
 import shine.db.entities.ActiveSessionEntry;
-import shine.db.entities.SolanaUserEntry;
+import shine.db.entities.CurrentUserEntry;
 import shine.geo.ClientInfoService;
 import shine.geo.GeoLookupService;
 import utils.crypto.Ed25519Util;
@@ -58,7 +58,7 @@ public class Net_CreateAuthSession__Handler implements JsonMessageHandler {
         Net_CreateAuthSession_Request req = (Net_CreateAuthSession_Request) baseReq;
 
         if (ctx == null
-                || ctx.getSolanaUser() == null
+                || ctx.getCurrentUser() == null
                 || ctx.getAuthNonce() == null
                 || ctx.getAuthenticationStatus() != ConnectionContext.AUTH_STATUS_AUTH_IN_PROGRESS) {
 
@@ -72,7 +72,7 @@ public class Net_CreateAuthSession__Handler implements JsonMessageHandler {
             return err;
         }
 
-        SolanaUserEntry userFromContext = ctx.getSolanaUser();
+        CurrentUserEntry userFromContext = ctx.getCurrentUser();
         String loginFromContext = userFromContext.getLogin();
         String loginFromReq = req.getLogin();
         if (loginFromReq == null || loginFromReq.isBlank()) {
@@ -97,9 +97,9 @@ public class Net_CreateAuthSession__Handler implements JsonMessageHandler {
             return err;
         }
 
-        SolanaUserEntry user;
+        CurrentUserEntry user;
         try {
-            user = SolanaUsersDAO.getInstance().getByLogin(loginFromContext);
+            user = CurrentUsersDAO.getInstance().getByLogin(loginFromContext);
         } catch (SQLException e) {
             Net_Response err = NetExceptionResponseFactory.error(
                     req,
@@ -414,10 +414,15 @@ public class Net_CreateAuthSession__Handler implements JsonMessageHandler {
             return err;
         }
 
+        // Между AuthChallenge и CreateAuthSession routing мог измениться,
+        // поэтому окончательный LOCAL/REMOTE scope вычисляем повторно.
+        int userServerScope = AuthAccessScopeSupport.connectionScopeForLogin(canonicalLogin);
+
         // --- обновляем контекст ---
         ctx.setActiveSession(activeSessionEntry);
         ctx.setSessionId(sessionId);
         ctx.setAuthNonce(null);
+        ctx.setUserServerScope(userServerScope);
         ctx.setAuthenticationStatus(ConnectionContext.AUTH_STATUS_USER);
 
         ActiveConnectionsRegistry.getInstance().register(ctx);
@@ -428,6 +433,7 @@ public class Net_CreateAuthSession__Handler implements JsonMessageHandler {
         resp.setRequestId(req.getRequestId());
         resp.setStatus(WireCodes.Status.OK);
         resp.setSessionId(sessionId);
+        resp.setConnectionScope(AuthAccessScopeSupport.connectionScopeName(userServerScope));
         return resp;
     }
 

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/auth/Net_ListSessions_Handler.java

@@ -14,7 +14,7 @@ import server.logic.ws_protocol.JSON.utils.NetExceptionResponseFactory;
 import server.logic.ws_protocol.WireCodes;
 import shine.db.dao.ActiveSessionsDAO;
 import shine.db.entities.ActiveSessionEntry;
-import shine.db.entities.SolanaUserEntry;
+import shine.db.entities.CurrentUserEntry;
 import shine.geo.GeoLookupService;
 
 import java.sql.SQLException;
@@ -36,7 +36,7 @@ public class Net_ListSessions_Handler implements JsonMessageHandler {
     public Net_Response handle(Net_Request baseReq, ConnectionContext ctx) throws Exception {
         Net_ListSessions_Request req = (Net_ListSessions_Request) baseReq;
 
-        if (ctx == null || ctx.getSolanaUser() == null || ctx.getAuthenticationStatus() != ConnectionContext.AUTH_STATUS_USER) {
+        if (ctx == null || ctx.getCurrentUser() == null || ctx.getAuthenticationStatus() != ConnectionContext.AUTH_STATUS_USER) {
             return NetExceptionResponseFactory.error(
                     req,
                     WireCodes.Status.UNVERIFIED,
@@ -45,7 +45,7 @@ public class Net_ListSessions_Handler implements JsonMessageHandler {
             );
         }
 
-        SolanaUserEntry user = ctx.getSolanaUser();
+        CurrentUserEntry user = ctx.getCurrentUser();
         String currentLogin = user.getLogin();
 
         List<ActiveSessionEntry> sessions;

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/auth/Net_ResolveLoginForAuth_Handler.java

@@ -0,0 +1,45 @@
+package server.logic.ws_protocol.JSON.handlers.auth;
+
+import server.logic.ws_protocol.JSON.ConnectionContext;
+import server.logic.ws_protocol.JSON.entyties.Net_Request;
+import server.logic.ws_protocol.JSON.entyties.Net_Response;
+import server.logic.ws_protocol.JSON.handlers.JsonMessageHandler;
+import server.logic.ws_protocol.JSON.handlers.auth.entyties.Net_ResolveLoginForAuth_Request;
+import server.logic.ws_protocol.JSON.handlers.auth.entyties.Net_ResolveLoginForAuth_Response;
+import server.logic.ws_protocol.JSON.utils.NetExceptionResponseFactory;
+import server.logic.ws_protocol.WireCodes;
+import shine.db.entities.CurrentUserEntry;
+import shine.db.entities.UserAccessServerRouteEntry;
+
+public class Net_ResolveLoginForAuth_Handler implements JsonMessageHandler {
+
+    @Override
+    public Net_Response handle(Net_Request baseReq, ConnectionContext ctx) throws Exception {
+        Net_ResolveLoginForAuth_Request req = (Net_ResolveLoginForAuth_Request) baseReq;
+        String login = req.getLogin() == null ? "" : req.getLogin().trim();
+        if (login.isBlank()) {
+            return NetExceptionResponseFactory.error(
+                    req, WireCodes.Status.BAD_REQUEST, "EMPTY_LOGIN", "Пустой login");
+        }
+
+        AuthAccessScopeSupport.Resolution resolved = AuthAccessScopeSupport.resolveLogin(login);
+
+        Net_ResolveLoginForAuth_Response resp = new Net_ResolveLoginForAuth_Response();
+        resp.setOp(req.getOp());
+        resp.setRequestId(req.getRequestId());
+        resp.setStatus(WireCodes.Status.OK);
+        resp.setResolution(resolved.resolution());
+
+        CurrentUserEntry user = resolved.user();
+        if (user != null) {
+            resp.setLogin(user.getLogin());
+        }
+
+        UserAccessServerRouteEntry route = resolved.primaryAccessServer();
+        if (route != null) {
+            resp.setAccessServerLogin(route.getServerLogin());
+            resp.setAccessServerUrl(route.getServerUrl());
+        }
+        return resp;
+    }
+}

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/auth/Net_SessionLogin_Handler.java

@@ -14,9 +14,9 @@ import server.logic.ws_protocol.JSON.utils.AuthKeyUtils;
 import server.logic.ws_protocol.JSON.utils.NetExceptionResponseFactory;
 import server.logic.ws_protocol.WireCodes;
 import shine.db.dao.ActiveSessionsDAO;
-import shine.db.dao.SolanaUsersDAO;
+import shine.db.dao.CurrentUsersDAO;
 import shine.db.entities.ActiveSessionEntry;
-import shine.db.entities.SolanaUserEntry;
+import shine.db.entities.CurrentUserEntry;
 import shine.geo.ClientInfoService;
 import shine.geo.GeoLookupService;
 import utils.crypto.Ed25519Util;
@@ -188,9 +188,9 @@ public class Net_SessionLogin_Handler implements JsonMessageHandler {
         ctx.setSessionLoginNonceExpiresAtMs(0);
 
         // подтягиваем пользователя
-        SolanaUserEntry user;
+        CurrentUserEntry user;
         try {
-            user = SolanaUsersDAO.getInstance().getByLogin(session.getLogin());
+            user = CurrentUsersDAO.getInstance().getByLogin(session.getLogin());
         } catch (SQLException e) {
             return NetExceptionResponseFactory.error(
                     req,
@@ -292,10 +292,13 @@ public class Net_SessionLogin_Handler implements JsonMessageHandler {
         session.setClientPlatform(clientPlatform);
         session.setUserLanguage(userLanguage);
 
+        int userServerScope = AuthAccessScopeSupport.connectionScopeForLogin(user.getLogin());
+
         // ctx
         ctx.setActiveSession(session);
-        ctx.setSolanaUser(user);
+        ctx.setCurrentUser(user);
         ctx.setSessionId(sessionId);
+        ctx.setUserServerScope(userServerScope);
         ctx.setAuthenticationStatus(ConnectionContext.AUTH_STATUS_USER);
 
         ActiveConnectionsRegistry.getInstance().register(ctx);
@@ -306,6 +309,7 @@ public class Net_SessionLogin_Handler implements JsonMessageHandler {
         resp.setRequestId(req.getRequestId());
         resp.setStatus(WireCodes.Status.OK);
         resp.setStoragePwd(session.getStoragePwd());
+        resp.setConnectionScope(AuthAccessScopeSupport.connectionScopeName(userServerScope));
         return resp;
     }