Аввив 2.0 - работает, заливка!!

cripto utils
1
2026-09-21 12:49:33 +03:00 · 2026-09-20 11:20:32 +03:00 · 2026-09-19 10:18:45 +03:00 · 2026-09-18 00:00:42 +03:00 · 2026-09-17 23:35:53 +03:00 · 2026-09-17 22:43:49 +03:00
1282 changed files with 71450 additions and 29739 deletions
@@ -105,8 +105,11 @@ ESP32/**/*.a
 # Полные серверные бэкапы (тяжёлые архивы, не коммитим)
 deploy/backup/archive/**
 !deploy/backup/archive/.gitkeep
+SHiNE-bundle-*.zip

-# Локальная дев-обвязка Claude (дев-сервер shine-UI, сессии, планы) — не коммитим
+# Локальная дев-обвязка AI-агентов (сессии, планы, настройки) — не коммитим
+.agents/
+.codex/
 .claude/
 # Рабочие бэкапы/превью-ассеты UI — не для репозитория
 *.bak.png
@@ -14,14 +14,15 @@
 - Веб-панель администратора сервера (управление Solana PDA сервера) находится в `shine-UI/`:
 - точка входа `shine-UI/server-ui.html`;
 - остальные файлы серверного UI — в `shine-UI/server-ui/`.
- Локальный Telegram-бот агента-кодера находится в папке `SHiNE-agent-bot-coder/` и не является кодом основного серверного приложения.
+- Локальный Telegram-бот агента-кодера живёт рядом с репозиторием продукта, обычно в `../SHiNE-agent-bot-coder/`, и не входит в публичный код основного приложения.
 - Solana/Anchor-модуль находится в папке `shine-solana/shine/` и ведётся отдельно от основного server/UI деплоя.

 ## Сервис агента-кодера
- В проекте есть локальный Telegram-бот-сервис агента-кодера в папке `SHiNE-agent-bot-coder/`.
+- Локальный Telegram-бот-сервис агента-кодера находится вне этого git-репозитория, обычно в `../SHiNE-agent-bot-coder/`.
 - Сервис принимает сообщения из Telegram, ведёт историю диалога, ставит задачи в очередь и вызывает Codex CLI для обработки запросов по проекту.
- Автоматически читаемые инструкции для Codex внутри сервиса держать в `SHiNE-agent-bot-coder/AGENTS.md`.
- Подробные служебные правила Telegram-обработчика, его очередь, история, systemd-запуск и особенности ответов описывать в `SHiNE-agent-bot-coder/AGENT.md`.
+- Рабочая папка Codex для сервиса должна указывать на этот продуктовый репозиторий: `CODEX_WORKDIR=/home/ai/work/SHiNE/SHiNE-server-sha256/SHiNE-product`.
+- Автоматически читаемые инструкции для Codex внутри сервиса держать в `../SHiNE-agent-bot-coder/AGENTS.md`.
+- Подробные служебные правила Telegram-обработчика, его очередь, история, systemd-запуск и особенности ответов описывать в `../SHiNE-agent-bot-coder/AGENT.md`.
 - Если в сообщениях пользователя встречается «агент MD» или похожая формулировка про файл инструкций Codex, считать, что имеется в виду автоматически читаемый `AGENTS.md`.

 ## ESP32 UI homeserver
@@ -44,6 +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`.
@@ -78,12 +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).
- Перед каждым новым коммитом обязательно увеличивать версии в `VERSION.properties`:
- `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.
+- Все правила по коммитам, merge в `main`, `git push` и обновлению `VERSION.properties` находятся в `COMMIT_AND_VERSION_RULES.md`.
+- Этот файл считать единым источником истины по правилам версионирования и коммитов для данного репозитория.

 ## Deploy
 - Все документы, инструкции, backup-правила и скрипты деплоя хранить в папке `deploy/`.
@@ -92,7 +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.
@@ -5,7 +5,7 @@
@shine-UI/AGENTS.md

 ## Справка по подпроектам
- При работе внутри `SHiNE-agent-bot-coder/` — читать `SHiNE-agent-bot-coder/AGENTS.md` и `SHiNE-agent-bot-coder/AGENT.md`.
+- При работе с локальным агентом-кодером — читать внешние файлы `../SHiNE-agent-bot-coder/AGENTS.md` и `../SHiNE-agent-bot-coder/AGENT.md`.
 - При работе внутри `shine-solana/shine/` — читать `shine-solana/shine/AGENTS.md`.
 - При работе внутри `shine-UI/server-ui/` — читать `shine-UI/AGENTS.md`.
 - При работе внутри `SHiNE-server/` — читать `SHiNE-server/AGENTS.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`.
@@ -0,0 +1,29 @@
+# SHiNE ANS-104 `test5590` patch
+
+Этот архив содержит **только новые/изменённые файлы** плюс `DELETE_FILES.txt`.
+
+## Что меняется
+
+- Frame v1 без поддержки старого формата.
+- Один пользовательский block = готовый Ed25519 ANS-104 DataItem.
+- Test tag: `App=test5590`; channel tag: `c=<canonical slug>`.
+- SHiNE `prevHash` остаётся `SHA-256(FrameV1Bytes)` и не зависит от Arweave ID.
+- PostgreSQL — единственное локальное хранилище пользовательских blocks.
+- Старый custom SHINE-ARCHIVE и filesystem blockchain storage удаляются.
+- Каждые ~15 минут локальные pending DataItems собираются в standard ANS-104 bundle и идут через существующий native Arweave L1 transport.
+- Другие серверы находят `App=test5590`, импортируют и не публикуют повторно.
+- `ESP32/**` **не изменён**.
+
+## Состав
+
+- изменено/добавлено файлов: 46
+- удалить файлов: 41
+
+Применение и проверки: `docs/Blockchain/CODEX_APPLY_ANS104_TEST5590_PATCH.md`.
+
+## Проверки при сборке patch
+
+- `node --check` для изменённых production JS: OK.
+- `diff -qr` каталога `ESP32` относительно исходного архива: без изменений.
+- Active Java refs на удалённые SHINE-ARCHIVE/file-recovery classes: отсутствуют.
+- `./gradlew testClasses --offline --no-daemon`: не запущен до компиляции, потому что wrapper требует скачать Gradle 8.14 с `services.gradle.org`, а рабочая среда не имеет внешнего сетевого доступа. Полный Gradle test обязателен после применения patch в dev-среде.
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-# Задание для Айдара: навести порядок в инструкциях агентов SHiNE
-
-## Кратко
-Нужно согласовать и оформить единый порядок инструкций для Codex/Telegram-агентов в проекте SHiNE, чтобы агенты стабильно понимали структуру проекта, границы ответственности и правила работы с сервером, UI, Solana-модулем, Telegram-ботом и игроками.
-
-## Зачем это нужно
-Сейчас проект состоит из нескольких связанных, но разных частей:
-
- основной сервер `SHiNE-server/`;
- UI `shine-UI/`;
- Solana/Anchor-модуль `shine-solana/shine/`;
- Telegram-агент-кодер `SHiNE-agent-bot-coder/`;
- TURN-сервер;
- документация `docs/`;
- отдельные рабочие папки игроков `Players/`.
-
-Без явных инструкций агент может путать эти зоны: например, смешать деплой Solana с деплоем сервера, изменить код от имени игрока, не обновить документацию API/DM/блокчейна или неправильно трактовать файл инструкций.
-
-## Что предлагается сделать
-1. Утвердить корневой `AGENTS.md` как главный набор правил проекта.
-2. Проверить и при необходимости уточнить локальный `AGENTS.md` внутри `shine-solana/shine/`.
-3. Оставить отдельные служебные инструкции Telegram-агента в `SHiNE-agent-bot-coder/AGENT.md`.
-4. Оставить автоматически читаемые инструкции Telegram-агента в `SHiNE-agent-bot-coder/AGENTS.md`.
-5. Явно закрепить режим игроков:
-   - игроки могут задавать вопросы, просить анализ, идеи и ТЗ;
-   - игроки не меняют код проекта напрямую;
-   - материалы игроков сохраняются только в `Players/<username>/`.
-6. Зафиксировать правило: если пользователь говорит «агент MD» или похожую формулировку, считать, что речь про автоматически читаемый `AGENTS.md`.
-7. Добавить простой процесс согласования изменений инструкций:
-   - Дима или другой участник готовит предложение;
-   - Айдар получает уведомление/заявку;
-   - Айдар отвечает: одобрить, отклонить или попросить доработать;
-   - только после одобрения агент вносит изменения в проектные инструкции.
-
-## Предлагаемая логика уведомления Айдару
-Минимальный вариант без сложной разработки:
-
-1. Агент готовит текст заявки.
-2. Текст отправляется Айдару в Telegram или в общий рабочий чат.
-3. В заявке явно указаны варианты ответа:
-   - `одобрить`;
-   - `отклонить`;
-   - `доработать: ...`.
-4. После ответа Айдара агент либо выполняет согласованные правки, либо фиксирует, что задача отклонена/нужна доработка.
-
-Более удобный вариант на будущее:
-
- добавить в Telegram-бота команду или сценарий согласования задач, например:
-  - `/approve <id>`;
-  - `/reject <id> причина`;
-  - `/revise <id> комментарий`.
-
-Но для начала достаточно простого текстового согласования через Telegram.
-
-## Что нужно от Айдара
-Подтвердить, что такой порядок подходит:
-
-1. Корневой `AGENTS.md` остается главным правилом проекта.
-2. Для Solana, Telegram-агента и игроков сохраняются отдельные локальные правила.
-3. Игроки не меняют код напрямую, а готовят материалы и предложения.
-4. Изменения инструкций выполняются только после явного одобрения Айдара.
-5. Уведомления Айдару на первом этапе можно делать простым текстом в Telegram, без отдельной сложной системы заявок.
-
-## Ожидаемый результат
-После одобрения:
-
- агенты будут стабильнее понимать границы проекта;
- снизится риск случайных изменений не в той части системы;
- появится понятный порядок согласования задач от игроков;
- Айдар будет явно контролировать изменения в инструкциях и правилах работы агентов.
-
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-TELEGRAM_BOT_TOKEN=replace_me
-OPENAI_API_KEY=replace_me
-ALLOWED_TELEGRAM_USERNAME=AidarKC
-ALLOWED_TELEGRAM_PLAYERS=malvviiina:Милана,zodiaktechnika32:Сергей,oidasyda:Иван,blackbyrd1:Ворон,dimasol1:Дима
-ALLOWED_TELEGRAM_CHANNEL_USERNAME=shine_writing
-BOT_USERNAME=aidar_su_bot
-OPENAI_TRANSCRIBE_MODEL=gpt-4o-mini-transcribe
-TELEGRAM_FILE_DOWNLOAD_TIMEOUT_SECONDS=300
-OPENAI_TRANSCRIBE_TIMEOUT_SECONDS=900
-OPENAI_TTS_MODEL=gpt-4o-mini-tts
-OPENAI_TTS_VOICE=alloy
-OPENAI_TTS_RESPONSE_FORMAT=opus
-OPENAI_TTS_TIMEOUT_SECONDS=180
-OPENAI_TTS_CHUNK_CHARS=3500
-CODEX_BIN=/home/ai/.cache/JetBrains/IntelliJIdea2026.1/aia/codex/bin/codex-x86_64-unknown-linux-musl
-CODEX_WORKDIR=/home/ai/work/SHiNE/SHiNE-server-sha256
-CODEX_TIMEOUT_SECONDS=900
-MAX_RETRIES=3
-DATA_DIR=./data
@@ -1,5 +0,0 @@
-.env
-data/
-logs/
-run/
-__pycache__/
@@ -1,81 +0,0 @@
-# AGENT.md для SHiNE-agent-bot-coder
-
-Ты запущен как обработчик входящего Telegram-сообщения от пользователя.
-
-## Контекст
- `SHiNE-agent-bot-coder` — локальный Telegram-бот-сервис агента-кодера для работы с этим проектом.
- Сервис принимает входящие сообщения от пользователя Telegram, сохраняет историю, ставит задачи в очередь и последовательно запускает Codex CLI в рабочем проекте.
- Текстовые сообщения обрабатываются напрямую, voice/audio сначала распознаются через OpenAI transcription, затем передаются как текстовая задача.
- История диалога хранится в JSONL-файле, путь передаётся в промпте.
- Сообщение может быть текстом или результатом распознавания голосового.
- Ответ пойдёт пользователю в Telegram как обычное текстовое сообщение.
- Единственная рабочая реализация сервиса — Python-скрипт `py_bot_service.py`; старая Java-реализация удалена как нерабочая и не должна восстанавливаться без отдельного решения Айдара.
- В репозитории также есть отдельный Solana/Anchor-модуль `shine-solana/shine/`; он логически связан с SHiNE, но не должен автоматически подключаться к основному серверному deploy без отдельной команды.
- Перед изменениями внутри `shine-solana/shine/` читать локальные инструкции `shine-solana/shine/AGENTS.md`; в git не добавлять локальные ключи, `.git`, `.idea`, `.gradle`, `target`, `node_modules`, `test-ledger`, логи, временные run-отчёты и `.env`-конфиги.
-
-## Авторитет команд и история
- Основной пользователь и источник команд — Айдар: `@AidarKC` / `@aidarkc`.
- Дополнительно разрешены игроки из whitelist (`ALLOWED_TELEGRAM_PLAYERS`), каждый со своей отдельной историей и рабочей папкой `Players/<username>/`.
- Игроки работают в режиме вопросов/анализа/подготовки материалов: в промпте явно задано правило не менять код проекта и писать материалы только в своей папке.
- Для неизвестных пользователей в личном чате сервис отвечает вежливым отказом.
- В Telegram-канале/группе `@shine_writing` сервис выполняет сообщения только от Айдара, а ответы отправляет в тот же чат.
- Если Telegram сообщает о миграции обычной группы в supergroup, сервис должен запомнить новый `chat_id` и отправлять ответы уже туда.
- На события подключения/отключения пользователей (join/leave) сервис не отвечает и ничего не отправляет.
-
-## Очередь и состояние
- Входящие задачи записываются в файловую очередь и обрабатываются строго по одной, чтобы не смешивать изменения в проекте.
- Сервис ведёт состояние активной задачи и текущего файла истории, а после рестарта продолжает незавершённую обработку с учётом сохранённого состояния.
- Истории диалогов хранятся в JSONL по каждому разрешённому username отдельно: `data/history/<username>/`.
- Архив истории после `/new`: `data/history/<username>/archive/`.
- После `/new` для этого же пользователя должен сбрасываться и контекст продолжения Codex-сессии; следующий запрос запускается как новая сессия, не через resume.
- Для просмотра истории игрока открывать файлы в его папке истории по username.
- Дедупликация входящих Telegram update нужна, чтобы одно сообщение не попало в обработку повторно.
- Если Codex молчит во время активной задачи 2 минуты подряд, сервис отправляет аварийный статус с общим временем работы задачи; при дальнейшем молчании повторяет статус каждые 2 минуты.
- После успешной обработки задачи из личного чата Айдара сервис должен отправить публичный итоговый отчёт в группу `@shine_writing`: первым сообщением исходный запрос, вторым сообщением-ответом итоговый ответ Codex. Промежуточные статусы в группу не дублировать.
- Для приватных voice/audio-запросов в публичном отчёте первым сообщением отправлять исходный Telegram voice/audio-файл с подписью, где указан распознанный текст. В пользовательском тексте отчёта не показывать Telegram `file_id`.
- Озвучивание финальных ответов настраивается персонально для каждого Telegram-пользователя командами `/voice_on`, `/voice_off`; для новых пользователей оно включено по умолчанию.
- Адаптация текста перед озвучкой настраивается персонально командами `/voice_rewrite_on`, `/voice_rewrite_off`. Если она включена, сервис перед TTS вызывает дешёвую текстовую модель OpenAI и делает голосовую версию без длинных хэшей, путей, команд и технического шума, сохраняя смысл и порядок исходного ответа.
- Режим личных ответов настраивается персонально командами `/single_message_on`, `/single_message_off`: либо одно редактируемое сообщение по этапам, либо отдельные сообщения как раньше.
- Команда `/settings` должна сразу показывать текущее состояние всех персональных настроек пользователя и список команд для их изменения.
- Если озвучивание включено, после полного текстового финального ответа сервис дополнительно отправляет voice-файл с синтезированной речью через OpenAI TTS даже для текстовых запросов. Voice отправляется в исходный чат, а также в известный личный чат пользователя и в общий чат `@shine_writing`, если они отличаются и доступны. Промежуточные статусы не озвучивать.
- Команда `/status` должна показывать состояние очереди и персональные настройки: voice-ответы, адаптацию текста перед озвучкой и режим одного сообщения в личке.
-
-## Правила голосовой версии ответа
- Текстовый финальный ответ должен оставаться полноценным: в нём можно указывать команды, пути, хэши коммитов, номера версий, результаты проверок и другие технические детали.
- Голосовую версию финального ответа нужно делать короче и проще для восприятия на слух. Основной механизм — персонально включаемая адаптация текста через дополнительный OpenAI-вызов перед TTS.
- В голосовой версии не зачитывать длинные хэши коммитов, токены, file_id, длинные команды, полные пути и другие строки, которые человек всё равно не сможет надёжно запомнить на слух.
- Для commit/push в голосовой версии достаточно сказать краткий итог: что коммит сделан, что именно изменено, проверки прошли без ошибок, push выполнен, рабочее дерево чистое.
- Если пользователю нужны точные команды, хэши или подробности, они должны оставаться в текстовом ответе.
-
-## Планы и отложенные фичи
- Планы проекта по отложенным фичам хранятся в `TODO/`.
- Внутри есть три горизонта:
-  - `near/` - ближайшие планы, обычно сегодня/завтра;
-  - `medium/` - среднесрочные планы, обычно недели или 1-2 месяца;
-  - `far/` - дальнее будущее без понятного срока.
- Если пользователь спрашивает, какие есть планы или что можно продолжить, нужно смотреть эти три папки и отвечать кратким списком по горизонтам.
- Файлы из `TODO/` не начинать реализовывать без явной команды пользователя.
- После реализации фичи, требующей ручной проверки, нужно добавить отдельный файл в `docs/Pending_Features/`.
-
-## Центр задач и предложений
- Сервис хранит простые задачи и предложения в `data/task_center/items.json`.
- Айдар может смотреть список через `/tasks` или естественные фразы вроде «покажи мои задачи», «покажи задачи Миланы».
- Айдар может ставить задачи игрокам фразой вида «поставь задачу Милане: ...».
- Игроки могут отправлять предложения Айдару фразой вида `предложение: ...`, `идея: ...` или `заявка: ...`.
- Статусы меняются фразами с ID: `одобрить TC-0001`, `отклонить TC-0001`, `доработать TC-0001`, `закрыть TC-0001`.
- После финального ответа в личном чате сервис добавляет короткое напоминание, если у пользователя есть активные задачи или предложения.
-
-## Локальный запуск и systemd
- Основной запуск сервиса выполняется Python-скриптом `py_bot_service.py` из папки `SHiNE-agent-bot-coder/`.
- Локальные секреты и параметры должны храниться в `.env`, этот файл не коммитится.
- Для проверки Codex без Telegram можно использовать self-test режим сервиса.
- Для постоянного локального запуска используется user-level systemd service `shine-agent-bot-coder`; скрипты установки лежат в `SHiNE-agent-bot-coder/scripts/systemd/`.
- Если меняется логика сервиса, после изменений нужно проверить запуск локально и при необходимости перезапустить user systemd service.
- Команда Telegram `/restart` (`/restart_service`) доступна только Айдару и выполняет отложенный рестарт после текущей задачи, до взятия следующей. Аварийный жёсткий рестарт доступен только Айдару командами `/restart_hard`, `/restart_now`, `/restart_force`.
-
-## Правила ответа
- Пиши содержательно и коротко.
- Не упоминай внутренние служебные детали, файловую систему и технические логи.
- Если запрос требует действий с кодом/проектом, выполняй их в рабочей директории.
- Если для ответа данных недостаточно, задай ровно один уточняющий вопрос.
- Если была ошибка предыдущего запуска, в промпте будет пометка retry — учти это и продолжи с учётом текущего состояния проекта.
@@ -1,25 +0,0 @@
-# AGENTS
-
-## Назначение
- Это автоматически читаемые инструкции Codex для папки `SHiNE-agent-bot-coder/`.
- `SHiNE-agent-bot-coder` — локальный Telegram-бот-сервис агента-кодера для работы с проектом SHiNE.
- Если пользователь говорит «агент MD», «агент с MD» или похожим образом про файл инструкций Codex, считать, что имеется в виду `AGENTS.md`.
-
-## Связанные инструкции
- Подробные служебные правила Telegram-обработчика лежат в `AGENT.md`.
- `AGENT.md` используется самим сервисом как файл инструкций, который передаётся в промпт обработчика входящих Telegram-сообщений.
- При изменении логики сервиса сначала читать `AGENT.md`, затем код `py_bot_service.py`.
-
-## Планы и задачи
- Отложенные задачи проекта лежат в `../TODO/`.
- Точка входа по планам: `../TODO/README.md`.
- Горизонты планов:
-  - `near/` - ближайшие планы;
-  - `medium/` - среднесрочные планы;
-  - `far/` - дальнее будущее.
- Если пользователь спрашивает, какие есть планы или что можно продолжить, кратко перечислять задачи по этим горизонтам.
- Не начинать реализацию задач из `TODO` без явной команды пользователя.
-
-## Проверка после изменений
- Если меняется логика Telegram-бота, проверить локальный запуск или self-test, когда это уместно.
- Если меняется только документация или инструкции, достаточно проверить, что ссылки на документы актуальны.
@@ -1,2 +0,0 @@
-@AGENTS.md
-@AGENT.md
@@ -1,26 +0,0 @@
-# Промпты для режима игроков (на согласование)
-
-## 1) Базовый служебный промпт (добавка к задаче игрока)
-
-```text
-Режим игрока (обязательно):
- Пользователь: <Имя> (@<username>).
- Рабочая папка игрока: <project>/Players/<username>
- Код проекта не изменять.
- Можно отвечать на вопросы по проекту, предлагать идеи и готовить ТЗ.
- Если нужны правки кода, описывать предложение текстом и сохранять материалы только в папке игрока.
-```
-
-## 2) Приветственное сообщение игроку (один раз)
-
-```text
-Привет, <Имя>.
-Можно задавать вопросы по проекту, просить анализ, идеи и подготовку готового ТЗ.
-Команда /new начинает новую сессию и архивирует текущую историю.
-```
-
-## 3) Отказ неизвестному пользователю
-
-```text
-Извините, доступ к этому агенту пока не выдан. Обратитесь к Айдару.
-```
@@ -1,100 +0,0 @@
-# SHiNE-agent-bot-coder
-
-Локальный Telegram-бот-сервис для пользователя `ai`:
- принимает сообщения от `@AidarKC`;
- поддерживает whitelist игроков (`ALLOWED_TELEGRAM_PLAYERS`) с отдельными историями;
- ведёт историю диалога в `JSONL`;
- ставит задачи в файловую очередь;
- обрабатывает задачи строго последовательно;
- поддерживает текстовые и голосовые сообщения (voice/audio через OpenAI transcription);
- вызывает Codex CLI и отправляет ответ в Telegram;
- в личном чате умеет работать в двух персонально переключаемых режимах: через одно редактируемое статусное сообщение или через отдельные сообщения по этапам;
- умеет персонально для каждого пользователя озвучивать финальный ответ через OpenAI TTS;
- при рестарте восстанавливает незавершённые задачи;
- отправляет аварийный статус только если Codex молчит 2 минуты подряд во время активной задачи;
- принимает сообщения из канала/группы `@shine_writing`, выполняет команды только от `@AidarKC`;
- учитывает миграцию обычной Telegram-группы в supergroup и перенаправляет ответы на новый `chat_id`.
-
-Рабочая реализация сервиса — только `py_bot_service.py`. Старая Java-реализация удалена, потому что не заработала и больше не используется.
-
-## Структура
- `.env` — локальные секреты и параметры запуска (не коммитится);
- `data/py_queue.jsonl` — очередь Python-сервиса;
- `data/py_state.json` — текущее состояние Python-сервиса;
- `data/py_processed_updates.log` — дедуп входящих update;
- `data/history/<username>/*.jsonl` — активные истории по пользователям;
- `data/history/<username>/archive/*.jsonl` — архивы после `/new`.
-
-## Локальный запуск
-1. Скопировать пример:
-   - `cp .env.example .env`
-2. Заполнить секреты в `.env`.
-   - `TELEGRAM_BOT_TOKEN` — токен рабочего Telegram-бота.
-   - `ALLOWED_TELEGRAM_USERNAME` — пользователь, чьи сообщения выполняются как команды.
-   - `ALLOWED_TELEGRAM_PLAYERS` — whitelist игроков в формате `username:Имя,username2:Имя2`.
-   - `ALLOWED_TELEGRAM_CHANNEL_USERNAME` — канал, из которого принимаются `channel_post`; обычные group/supergroup-сообщения обрабатываются как `message`.
-   - `TELEGRAM_API_BASE_URL` — базовый URL Bot API; по умолчанию `https://api.telegram.org`. Для очень больших voice/audio можно поднять локальный `telegram-bot-api` и направить бота туда.
-   - `TELEGRAM_FILE_DOWNLOAD_TIMEOUT_SECONDS` — тайм-аут скачивания voice/audio из Telegram, по умолчанию 300 секунд.
-   - `OPENAI_TRANSCRIBE_TIMEOUT_SECONDS` — тайм-аут распознавания voice/audio в OpenAI, по умолчанию 900 секунд.
-   - `OPENAI_TRANSCRIBE_MAX_UPLOAD_BYTES` — безопасный лимит размера одного куска для OpenAI transcription, по умолчанию `24 MiB`.
-   - `OPENAI_TRANSCRIBE_MAX_CHUNK_SECONDS` — максимальная длина одного куска при длинном аудио, по умолчанию `900` секунд.
-   - `OPENAI_TRANSCRIBE_OVERLAP_SECONDS` — перекрытие соседних кусков для более ровной склейки текста, по умолчанию `2` секунды.
-   - `OPENAI_TRANSCRIBE_REENCODE_BITRATE_KBPS` — битрейт локального пережатия длинного аудио через `ffmpeg`, по умолчанию `24`.
-   - `OPENAI_TRANSCRIBE_FFMPEG_TIMEOUT_SECONDS` — тайм-аут локальной обработки длинного аудио через `ffmpeg`/`ffprobe`, по умолчанию `1800`.
-   - `FFMPEG_BIN` и `FFPROBE_BIN` — пути к локальным бинарям `ffmpeg`/`ffprobe`, если они не лежат в `PATH`.
-   - `OPENAI_TTS_MODEL` — модель синтеза речи, по умолчанию `gpt-4o-mini-tts`.
-   - `OPENAI_TTS_VOICE` — голос синтеза речи, по умолчанию `alloy`.
-   - `OPENAI_TTS_RESPONSE_FORMAT` — аудиоформат для Telegram voice, по умолчанию `opus`.
-   - `OPENAI_TTS_TIMEOUT_SECONDS` — тайм-аут генерации одного фрагмента речи, по умолчанию 180 секунд.
-   - `OPENAI_TTS_CHUNK_CHARS` — максимальный размер одного фрагмента озвучки, по умолчанию 3500 символов.
-3. Запуск:
-   - `python3 SHiNE-agent-bot-coder/py_bot_service.py`
-
-## Быстрый self-test Codex (без Telegram)
-```bash
-python3 SHiNE-agent-bot-coder/py_bot_service.py --selftest-codex "Ответь одной строкой: Codex работает"
-```
-
-## Длинные voice/audio
- Если аудио короткое, бот отправляет его в OpenAI как раньше.
- Если аудио большое или длинное, бот локально пережимает его через `ffmpeg`, при необходимости режет на куски и распознаёт последовательно.
- Если Telegram заранее сообщает большой размер файла, бот больше не отказывается сразу: сначала явно пишет, что пробует скачать файл, затем отдельно сообщает, удалось ли скачивание, и только после успешной загрузки переходит к подготовке аудио и OpenAI.
- Для очень больших файлов упираемся не только в OpenAI, но и в лимит обычного облачного Telegram Bot API на скачивание файла ботом. Для таких случаев нужно использовать локальный `telegram-bot-api` сервер и указать его через `TELEGRAM_API_BASE_URL`.
-
-## Статусы в личке
- Для `private`-чата бот поддерживает персональную настройку режима ответа.
- По умолчанию он старается не засорять переписку промежуточными сообщениями: создаёт одно статусное сообщение и редактирует его по этапам.
- Если включить `/single_message_off`, бот возвращается к старому режиму и отправляет отдельные сообщения по этапам и финальный ответ отдельно.
- Если финальный текст в режиме одного сообщения не помещается целиком, бот оставляет первую часть в отредактированном статусном сообщении и отправляет максимум ещё одно дополнительное текстовое сообщение с хвостом ответа.
- Голосовой ответ, если он включён, всегда приходит отдельным новым сообщением.
-
-## Запуск как systemd-сервис
-Файлы для установки:
- `scripts/systemd/shine-agent-bot-coder.service`
- `scripts/systemd/install-local-systemd.sh`
-
-Установка:
- `bash SHiNE-agent-bot-coder/scripts/systemd/install-local-systemd.sh`
-
-Проверка:
- `systemctl --user status shine-agent-bot-coder --no-pager`
- `journalctl --user -u shine-agent-bot-coder -f`
-
-Перезапуск после изменений:
- `systemctl --user restart shine-agent-bot-coder`
-
-## Telegram-команды
- `/status` — активная задача и размер очереди.
- `/settings` — текущие пользовательские настройки и команды для их изменения.
- `/queue` — список задач в очереди.
- `/stop` — остановить текущую задачу.
- `/cancel <id|all>` — удалить задачу по id/префиксу или очистить очередь.
- `/new` — архивировать текущую историю, сбросить продолжение Codex-сессии для этого пользователя и начать новый диалог.
- `/voice_on` — включить озвучивание финальных ответов для текущего пользователя.
- `/voice_off` — выключить озвучивание финальных ответов для текущего пользователя.
- `/voice_rewrite_on` — включить адаптацию текста перед озвучкой.
- `/voice_rewrite_off` — выключить адаптацию текста перед озвучкой.
- `/single_message_on` — вести ответ в личке через одно редактируемое сообщение.
- `/single_message_off` — слать отдельные сообщения по этапам и отдельный финальный ответ.
- `/restart` или `/restart_service` — отложенный рестарт после текущей задачи, до взятия следующей (только для Айдара).
- `/restart_hard` — жёсткий рестарт прямо сейчас (только для Айдара).
@@ -1,28 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-ROOT_DIR="/home/ai/work/SHiNE/SHiNE-server-sha256"
-SERVICE_DIR="${ROOT_DIR}/SHiNE-agent-bot-coder"
-UNIT_SRC="${SERVICE_DIR}/scripts/systemd/shine-agent-bot-coder.service"
-UNIT_DST="${HOME}/.config/systemd/user/shine-agent-bot-coder.service"
-
-echo "[1/6] Проверка python3..."
-command -v python3 >/dev/null 2>&1 || { echo "python3 не найден"; exit 1; }
-
-echo "[2/6] Подготовка папки логов..."
-mkdir -p "${SERVICE_DIR}/logs"
-
-echo "[3/6] Копирование user systemd unit..."
-mkdir -p "$(dirname "${UNIT_DST}")"
-cp "${UNIT_SRC}" "${UNIT_DST}"
-
-echo "[4/6] daemon-reload..."
-systemctl --user daemon-reload
-
-echo "[5/6] enable + start..."
-systemctl --user enable --now shine-agent-bot-coder
-
-echo "[6/6] Статус:"
-systemctl --user status shine-agent-bot-coder --no-pager
-
-echo "Готово. Логи: journalctl --user -u shine-agent-bot-coder -f"
@@ -1,19 +0,0 @@
-[Unit]
-Description=SHiNE Agent Bot Coder (Telegram + Codex queue worker)
-After=network-online.target
-Wants=network-online.target
-
-[Service]
-Type=simple
-WorkingDirectory=/home/ai/work/SHiNE/SHiNE-server-sha256/SHiNE-agent-bot-coder
-EnvironmentFile=/home/ai/work/SHiNE/SHiNE-server-sha256/SHiNE-agent-bot-coder/.env
-ExecStart=/usr/bin/python3 /home/ai/work/SHiNE/SHiNE-server-sha256/SHiNE-agent-bot-coder/py_bot_service.py
-Restart=always
-RestartSec=5
-TimeoutStopSec=20
-SuccessExitStatus=143 0
-StandardOutput=append:/home/ai/work/SHiNE/SHiNE-server-sha256/SHiNE-agent-bot-coder/logs/service.log
-StandardError=append:/home/ai/work/SHiNE/SHiNE-server-sha256/SHiNE-agent-bot-coder/logs/service.log
-
-[Install]
-WantedBy=default.target
@@ -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
@@ -0,0 +1,31 @@
+plugins {
+    id 'java'
+}
+
+group = 'shine'
+version = '1.0.0'
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(17)
+    }
+}
+
+repositories { mavenCentral() }
+
+dependencies {
+    implementation project(':shine-server-config')
+    implementation project(':shine-server-db')
+    implementation project(':shine-server-crypto')
+    implementation project(':shine-server-blockchain')
+    implementation project(':shine-server-net-protocol')
+    implementation project(':shine-server-solana-users-sync')
+
+    implementation 'com.fasterxml.jackson.core:jackson-databind:2.17.2'
+    implementation 'org.bouncycastle:bcprov-jdk18on:1.78.1'
+    implementation 'org.slf4j:slf4j-api:2.0.16'
+
+    testImplementation 'org.junit.jupiter:junit-jupiter:5.11.0'
+}
+
+test { useJUnitPlatform() }
@@ -0,0 +1,103 @@
+package server.archive;
+
+import blockchain.Ans104DataItem;
+
+import java.io.ByteArrayOutputStream;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+/** Minimal ANS-104 binary bundle writer/reader. */
+public final class Ans104Bundle {
+    public record Entry(byte[] id32, byte[] rawDataItem) {}
+
+    private Ans104Bundle() {}
+
+    public static byte[] write(List<byte[]> rawItems) {
+        if (rawItems == null || rawItems.isEmpty()) throw new IllegalArgumentException("ANS-104 bundle is empty");
+        if (rawItems.size() > 1_000_000) throw new IllegalArgumentException("Too many ANS-104 items");
+
+        List<Ans104DataItem> parsed = new ArrayList<>(rawItems.size());
+        long total = 32L + 64L * rawItems.size();
+        for (byte[] raw : rawItems) {
+            Ans104DataItem item = new Ans104DataItem(raw);
+            if (!item.verifySignature()) throw new IllegalArgumentException("Invalid ANS-104 DataItem signature");
+            parsed.add(item);
+            total = Math.addExact(total, raw.length);
+        }
+        if (total > Integer.MAX_VALUE) throw new IllegalArgumentException("Bundle too large for in-memory publisher: " + total);
+
+        ByteArrayOutputStream out = new ByteArrayOutputStream((int) total);
+        out.writeBytes(uint256LE(rawItems.size()));
+        for (int i = 0; i < rawItems.size(); i++) {
+            out.writeBytes(uint256LE(rawItems.get(i).length));
+            out.writeBytes(parsed.get(i).id32());
+        }
+        for (byte[] raw : rawItems) out.writeBytes(raw);
+        return out.toByteArray();
+    }
+
+    public static List<Entry> read(byte[] bundle, int maxItems) {
+        if (bundle == null || bundle.length < 32) throw new IllegalArgumentException("ANS-104 bundle too short");
+        long countLong = readUint256AsLong(bundle, 0);
+        if (countLong <= 0 || countLong > Math.max(1, maxItems)) {
+            throw new IllegalArgumentException("Bad ANS-104 bundle item count: " + countLong);
+        }
+        int count = (int) countLong;
+        long headerLong = 32L + 64L * count;
+        if (headerLong > bundle.length) throw new IllegalArgumentException("ANS-104 bundle header truncated");
+        int header = (int) headerLong;
+        long[] sizes = new long[count];
+        byte[][] ids = new byte[count][];
+        int hp = 32;
+        long payloadBytes = 0;
+        for (int i = 0; i < count; i++) {
+            sizes[i] = readUint256AsLong(bundle, hp); hp += 32;
+            ids[i] = Arrays.copyOfRange(bundle, hp, hp + 32); hp += 32;
+            if (sizes[i] <= 0 || sizes[i] > Integer.MAX_VALUE) throw new IllegalArgumentException("Bad DataItem size: " + sizes[i]);
+            payloadBytes = Math.addExact(payloadBytes, sizes[i]);
+        }
+        if (headerLong + payloadBytes != bundle.length) {
+            throw new IllegalArgumentException("ANS-104 bundle size mismatch: header=" + headerLong + " payload=" + payloadBytes + " actual=" + bundle.length);
+        }
+        List<Entry> out = new ArrayList<>(count);
+        int p = header;
+        for (int i = 0; i < count; i++) {
+            int len = (int) sizes[i];
+            byte[] raw = Arrays.copyOfRange(bundle, p, p + len);
+            p += len;
+            Ans104DataItem item = new Ans104DataItem(raw);
+            if (!Arrays.equals(ids[i], item.id32())) throw new IllegalArgumentException("Bundle entry ID mismatch at index " + i);
+            out.add(new Entry(ids[i], raw));
+        }
+        return out;
+    }
+
+    public static byte[] find(byte[] bundle, byte[] wantedId32, int maxItems) {
+        if (wantedId32 == null || wantedId32.length != 32) throw new IllegalArgumentException("wanted ID must be 32 bytes");
+        for (Entry e : read(bundle, maxItems)) {
+            if (Arrays.equals(e.id32(), wantedId32)) return e.rawDataItem();
+        }
+        return null;
+    }
+
+    /** ANS-104 bundle integers are 32-byte unsigned little-endian values. */
+    static byte[] uint256LE(long value) {
+        if (value < 0) throw new IllegalArgumentException("negative uint256");
+        byte[] out = new byte[32];
+        long v = value;
+        for (int i = 0; i < 8; i++) { out[i] = (byte) (v & 0xff); v >>>= 8; }
+        return out;
+    }
+
+    static long readUint256AsLong(byte[] data, int offset) {
+        if (offset < 0 || offset + 32 > data.length) throw new IllegalArgumentException("uint256 truncated");
+        for (int i = offset + 8; i < offset + 32; i++) {
+            if (data[i] != 0) throw new IllegalArgumentException("uint256 exceeds signed long range");
+        }
+        long v = 0;
+        for (int i = 7; i >= 0; i--) v = (v << 8) | (data[offset + i] & 0xffL);
+        if (v < 0) throw new IllegalArgumentException("uint256 exceeds signed long range");
+        return v;
+    }
+}
@@ -0,0 +1,37 @@
+package server.archive;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+/** Fixed-delay publisher. Empty cycles are no-ops. */
+public final class ArweaveBlockPublisherScheduler {
+    private static final Logger log = LoggerFactory.getLogger(ArweaveBlockPublisherScheduler.class);
+    private static final AtomicBoolean STARTED = new AtomicBoolean(false);
+    private static ScheduledExecutorService executor;
+
+    private ArweaveBlockPublisherScheduler() {}
+
+    public static void startOrLog() {
+        ArweaveBlocksConfig cfg;
+        try { cfg = ArweaveBlocksConfig.load(); cfg.validatePublisher(); }
+        catch (Exception e) { log.error("Cannot read/validate Arweave block publisher config", e); return; }
+        if (!cfg.publishEnabled()) { log.info("Arweave user-block publisher disabled"); return; }
+        if (!STARTED.compareAndSet(false,true)) return;
+        try {
+            ArweaveBlockPublisherService service = new ArweaveBlockPublisherService(cfg);
+            executor = Executors.newSingleThreadScheduledExecutor(r -> {
+                Thread t = new Thread(r, "shine-arweave-block-publisher"); t.setDaemon(true); return t;
+            });
+            Runnable task = () -> { try { service.runCycle(); } catch (Exception e) { log.error("Arweave block publish cycle failed", e); } };
+            executor.scheduleWithFixedDelay(task, 0, cfg.publishIntervalMinutes(), TimeUnit.MINUTES);
+            log.info("Arweave user-block publisher enabled: interval={}m gateway={}", cfg.publishIntervalMinutes(), cfg.publishGateway());
+        } catch (Exception e) { STARTED.set(false); log.error("Arweave user-block publisher failed to start", e); }
+    }
+
+    public static void close() { ScheduledExecutorService e=executor; if(e!=null)e.shutdownNow(); }
+}
@@ -0,0 +1,59 @@
+package server.archive;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import shine.db.dao.BlocksDAO;
+import shine.db.entities.BlockEntry;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/** Publishes locally-created signed user DataItems as one standard ANS-104 bundle. */
+public final class ArweaveBlockPublisherService {
+    private static final Logger log = LoggerFactory.getLogger(ArweaveBlockPublisherService.class);
+
+    private final ArweaveBlocksConfig cfg;
+    private final BlocksDAO blocksDAO = BlocksDAO.getInstance();
+    private final ArweaveL1Uploader uploader;
+
+    public ArweaveBlockPublisherService(ArweaveBlocksConfig cfg) {
+        this.cfg = cfg;
+        this.uploader = new ArweaveL1Uploader(cfg);
+    }
+
+    public int runCycle() throws Exception {
+        List<BlockEntry> candidates = blocksDAO.listPendingArweave(cfg.publishMaxItems());
+        if (candidates.isEmpty()) return 0;
+
+        List<byte[]> items = new ArrayList<>();
+        List<byte[]> ids = new ArrayList<>();
+        long estimated = 32;
+        for (BlockEntry e : candidates) {
+            byte[] raw = e.getBlockBytes();
+            byte[] id = e.getDataItemId();
+            if (raw == null || raw.length == 0 || id == null || id.length != 32) continue;
+            long next = estimated + 64L + raw.length;
+            if (!items.isEmpty() && next > cfg.publishMaxBundleBytes()) break;
+            if (next > cfg.publishMaxBundleBytes()) {
+                log.error("One DataItem exceeds arweave.blocks.publish.maxBundleBytes: chain={} block={} bytes={}",
+                        e.getBchName(), e.getBlockNumber(), raw.length);
+                continue;
+            }
+            items.add(raw); ids.add(id); estimated = next;
+        }
+        if (items.isEmpty()) return 0;
+
+        byte[] bundle = Ans104Bundle.write(items);
+        List<ArweaveL1Uploader.Tag> rootTags = List.of(
+                new ArweaveL1Uploader.Tag("Content-Type", "application/octet-stream"),
+                new ArweaveL1Uploader.Tag("Bundle-Format", "binary"),
+                new ArweaveL1Uploader.Tag("Bundle-Version", "2.0.0"),
+                // Deliberately different from App=test5590 so discovery returns child DataItems only.
+                new ArweaveL1Uploader.Tag("App", "test5590-batch")
+        );
+        ArweaveL1Uploader.UploadResult result = uploader.upload(bundle, rootTags);
+        blocksDAO.markArweavePublished(ids, result.txId(), System.currentTimeMillis());
+        log.info("Published {} SHiNE test DataItems in root tx {} (bundle={} bytes)", items.size(), result.txId(), bundle.length);
+        return items.size();
+    }
+}
@@ -0,0 +1,32 @@
+package server.archive;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+public final class ArweaveBlockSyncScheduler {
+    private static final Logger log = LoggerFactory.getLogger(ArweaveBlockSyncScheduler.class);
+    private static final AtomicBoolean STARTED = new AtomicBoolean(false);
+    private static ScheduledExecutorService executor;
+    private ArweaveBlockSyncScheduler() {}
+
+    public static void startOrLog() {
+        ArweaveBlocksConfig cfg;
+        try { cfg = ArweaveBlocksConfig.load(); }
+        catch (Exception e) { log.error("Cannot read Arweave block sync config", e); return; }
+        if (!cfg.syncEnabled()) { log.info("Arweave user-block sync disabled"); return; }
+        if (!STARTED.compareAndSet(false,true)) return;
+        try {
+            ArweaveBlockSyncService service = new ArweaveBlockSyncService(cfg);
+            executor = Executors.newSingleThreadScheduledExecutor(r -> { Thread t=new Thread(r,"shine-arweave-block-sync");t.setDaemon(true);return t; });
+            Runnable task=()->{try{service.runCycle();}catch(Exception e){log.error("Arweave block sync cycle failed",e);}};
+            executor.scheduleWithFixedDelay(task,0,cfg.syncIntervalMinutes(),TimeUnit.MINUTES);
+            log.info("Arweave user-block sync enabled: interval={}m gateway={}",cfg.syncIntervalMinutes(),cfg.syncGateway());
+        } catch (Exception e) { STARTED.set(false); log.error("Arweave user-block sync failed to start",e); }
+    }
+    public static void close(){ScheduledExecutorService e=executor;if(e!=null)e.shutdownNow();}
+}
@@ -0,0 +1,185 @@
+package server.archive;
+
+import blockchain.Ans104DataItem;
+import blockchain.BchBlockEntry;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import server.logic.ws_protocol.JSON.handlers.blockchain.Net_AddBlock_Handler;
+import shine.db.dao.ArweaveBlockImportDAO;
+import shine.db.dao.BlockchainStateDAO;
+import shine.db.dao.BlocksDAO;
+import shine.db.dao.SolanaUserPdaCurrentDAO;
+import shine.db.entities.BlockchainStateEntry;
+import shine.db.entities.SolanaUserPdaCurrentEntry;
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.nio.charset.StandardCharsets;
+import java.time.Duration;
+import java.util.*;
+
+/**
+ * Discovers App=test5590 child DataItems, extracts their exact serialized bytes
+ * from the root ANS-104 bundle and imports them through the normal AddBlock checks.
+ */
+public final class ArweaveBlockSyncService {
+    private static final Logger log = LoggerFactory.getLogger(ArweaveBlockSyncService.class);
+    private static final ObjectMapper MAPPER = new ObjectMapper();
+    private static final Base64.Decoder B64URL = Base64.getUrlDecoder();
+
+    private final ArweaveBlocksConfig cfg;
+    private final HttpClient http = HttpClient.newBuilder().connectTimeout(Duration.ofSeconds(20)).build();
+    private final ArweaveBlockImportDAO importDAO = ArweaveBlockImportDAO.getInstance();
+    private final BlocksDAO blocksDAO = BlocksDAO.getInstance();
+    private final SolanaUserPdaCurrentDAO usersDAO = SolanaUserPdaCurrentDAO.getInstance();
+    private final BlockchainStateDAO stateDAO = BlockchainStateDAO.getInstance();
+    private final Net_AddBlock_Handler addBlock = new Net_AddBlock_Handler();
+
+    public ArweaveBlockSyncService(ArweaveBlocksConfig cfg) { this.cfg = cfg; }
+
+    public void runCycle() throws Exception {
+        discover();
+        drainQueue();
+    }
+
+    private void discover() throws Exception {
+        long stored = importDAO.getLastBlockHeight();
+        long minHeight = Math.max(cfg.syncStartBlockHeight(), stored);
+        String cursor = null;
+        long maxHeight = minHeight;
+        Map<String, byte[]> rootCache = new HashMap<>();
+        int discovered = 0;
+
+        do {
+            JsonNode response = graphQlPage(minHeight, cursor);
+            JsonNode txs = response.path("data").path("transactions");
+            if (response.has("errors")) throw new IOException("Arweave GraphQL errors: " + response.path("errors"));
+            JsonNode edges = txs.path("edges");
+            if (!edges.isArray()) throw new IOException("Arweave GraphQL returned no transactions.edges");
+
+            String nextCursor = null;
+            for (JsonNode edge : edges) {
+                nextCursor = edge.path("cursor").asText(null);
+                JsonNode node = edge.path("node");
+                String itemIdText = node.path("id").asText("").trim();
+                String rootTx = node.path("bundledIn").path("id").asText("").trim();
+                long height = node.path("block").path("height").asLong(-1L);
+                if (itemIdText.isBlank() || rootTx.isBlank() || height < 0) continue;
+                maxHeight = Math.max(maxHeight, height);
+                byte[] id32;
+                try { id32 = B64URL.decode(itemIdText); }
+                catch (IllegalArgumentException bad) { continue; }
+                if (id32.length != 32 || blocksDAO.existsByDataItemId(id32) || importDAO.exists(id32)) continue;
+
+                byte[] bundle = rootCache.computeIfAbsent(rootTx, key -> {
+                    try { return downloadRootBundle(key); }
+                    catch (Exception e) { throw new RootDownloadRuntimeException(e); }
+                });
+                byte[] raw = Ans104Bundle.find(bundle, id32, Math.max(cfg.publishMaxItems() * 4, 100_000));
+                if (raw == null) throw new IOException("DataItem " + itemIdText + " not found in root bundle " + rootTx);
+                Ans104DataItem parsed = new Ans104DataItem(raw);
+                if (!parsed.hasTag(ArweaveBlocksConfig.TEST_TAG_NAME, ArweaveBlocksConfig.TEST_TAG_VALUE)) continue;
+                if (!parsed.verifySignature()) throw new IOException("Bad ANS-104 signature for " + itemIdText);
+                importDAO.enqueueIfMissing(id32, rootTx, height, raw, System.currentTimeMillis());
+                discovered++;
+            }
+            boolean hasNext = txs.path("pageInfo").path("hasNextPage").asBoolean(false);
+            cursor = hasNext ? nextCursor : null;
+            if (hasNext && (cursor == null || cursor.isBlank())) throw new IOException("GraphQL hasNextPage without cursor");
+        } while (cursor != null);
+
+        // Keep one-height overlap: the next query includes this height and deduplicates IDs.
+        importDAO.setLastBlockHeight(maxHeight, System.currentTimeMillis());
+        if (discovered > 0) log.info("Arweave discovery queued {} new SHiNE test DataItems through height {}", discovered, maxHeight);
+    }
+
+    private void drainQueue() throws Exception {
+        int passes = 0;
+        int importedTotal = 0;
+        boolean progress;
+        do {
+            progress = false;
+            List<ArweaveBlockImportDAO.QueueItem> pending = importDAO.listPending(cfg.syncQueueBatchSize());
+            if (pending.isEmpty()) break;
+            for (ArweaveBlockImportDAO.QueueItem q : pending) {
+                Ans104DataItem item;
+                BchBlockEntry block;
+                try {
+                    item = new Ans104DataItem(q.rawDataItem());
+                    if (!Arrays.equals(item.id32(), q.dataItemId())) throw new IllegalArgumentException("data_item_id mismatch");
+                    if (!item.hasTag(ArweaveBlocksConfig.TEST_TAG_NAME, ArweaveBlocksConfig.TEST_TAG_VALUE)) throw new IllegalArgumentException("bad App tag");
+                    if (!item.verifySignature()) throw new IllegalArgumentException("bad ANS-104 signature");
+                    block = new BchBlockEntry(q.rawDataItem());
+                } catch (Exception e) {
+                    importDAO.reject(q.dataItemId(), "invalid_data_item: " + e.getMessage(), System.currentTimeMillis());
+                    continue;
+                }
+
+                SolanaUserPdaCurrentEntry user = usersDAO.getByBlockchainKey(item.owner32());
+                if (user == null || user.getBlockchainName() == null || user.getBlockchainName().isBlank()) {
+                    importDAO.setPendingError(q.dataItemId(), "unknown_owner", System.currentTimeMillis());
+                    continue;
+                }
+                ensureState(user);
+                Net_AddBlock_Handler.ArweaveImportResult result = addBlock.addBlockFromArweave(user.getBlockchainName(), q.rawDataItem());
+                if (result.ok()) {
+                    importDAO.delete(q.dataItemId());
+                    importedTotal++; progress = true;
+                    continue;
+                }
+                String reason = result.reasonCode();
+                if ("bad_block_number".equals(reason) || "bad_prev_hash".equals(reason)
+                        || "prev_line_block_not_found".equals(reason) || "channel_not_found".equals(reason)
+                        || "chain_resync_in_progress".equals(reason)) {
+                    importDAO.setPendingError(q.dataItemId(), reason, System.currentTimeMillis());
+                } else {
+                    importDAO.reject(q.dataItemId(), reason, System.currentTimeMillis());
+                }
+            }
+            passes++;
+        } while (progress && passes < 8);
+        if (importedTotal > 0) log.info("Imported {} SHiNE test DataItems from Arweave", importedTotal);
+    }
+
+    private void ensureState(SolanaUserPdaCurrentEntry user) throws Exception {
+        BlockchainStateEntry existing = stateDAO.getByBlockchainName(user.getBlockchainName());
+        if (existing != null) return;
+        BlockchainStateEntry s = new BlockchainStateEntry();
+        s.setBlockchainName(user.getBlockchainName()); s.setLogin(user.getLogin()); s.setBlockchainKey(user.getBlockchainKey());
+        s.setSizeLimit(user.getPaidLimitBytes() > 0 ? user.getPaidLimitBytes() : 100_000L);
+        s.setFileSizeBytes(0L); s.setLastBlockNumber(-1); s.setLastBlockHash(null); s.setUpdatedAtMs(System.currentTimeMillis());
+        stateDAO.insertIfMissing(s);
+    }
+
+    private JsonNode graphQlPage(long minHeight, String cursor) throws Exception {
+        String after = cursor == null ? "null" : "\"" + escapeGraphQl(cursor) + "\"";
+        String query = "query { transactions(tags:[{name:\"App\",values:[\"test5590\"]}], block:{min:" + minHeight + "}, first:" + cfg.syncPageSize() + ", after:" + after + ", sort:HEIGHT_ASC) { pageInfo { hasNextPage } edges { cursor node { id bundledIn { id } block { height } } } } }";
+        String body = MAPPER.writeValueAsString(Map.of("query", query));
+        HttpRequest req = HttpRequest.newBuilder(URI.create(trim(cfg.syncGateway()) + "/graphql"))
+                .timeout(Duration.ofSeconds(60)).header("Content-Type","application/json").header("Accept","application/json")
+                .POST(HttpRequest.BodyPublishers.ofString(body, StandardCharsets.UTF_8)).build();
+        HttpResponse<String> resp = http.send(req, HttpResponse.BodyHandlers.ofString(StandardCharsets.UTF_8));
+        if (resp.statusCode() < 200 || resp.statusCode() >= 300) throw new IOException("GraphQL HTTP " + resp.statusCode());
+        return MAPPER.readTree(resp.body());
+    }
+
+    private byte[] downloadRootBundle(String txId) throws Exception {
+        HttpRequest req = HttpRequest.newBuilder(URI.create(trim(cfg.syncGateway()) + "/" + txId))
+                .timeout(Duration.ofMinutes(5)).GET().build();
+        HttpResponse<byte[]> resp = http.send(req, HttpResponse.BodyHandlers.ofByteArray());
+        if (resp.statusCode() < 200 || resp.statusCode() >= 300) throw new IOException("Arweave root HTTP " + resp.statusCode() + " tx=" + txId);
+        byte[] body = resp.body();
+        if (body == null || body.length == 0) throw new IOException("Empty Arweave root bundle " + txId);
+        if (body.length > cfg.syncMaxRootBundleBytes()) throw new IOException("Root bundle exceeds syncMaxRootBundleBytes: " + body.length);
+        return body;
+    }
+
+    private static String trim(String s){return String.valueOf(s==null?"":s).trim().replaceAll("/+$","");}
+    private static String escapeGraphQl(String s){return s.replace("\\","\\\\").replace("\"","\\\"");}
+    private static final class RootDownloadRuntimeException extends RuntimeException { RootDownloadRuntimeException(Throwable cause){super(cause);} }
+}
@@ -0,0 +1,66 @@
+package server.archive;
+
+import utils.config.AppConfig;
+
+import java.nio.file.Path;
+
+/** Configuration of the new per-user-block ANS-104 Arweave transport. */
+public record ArweaveBlocksConfig(
+        boolean publishEnabled,
+        int publishIntervalMinutes,
+        int publishMaxItems,
+        long publishMaxBundleBytes,
+        String publishGateway,
+        Path walletJwkPath,
+        int minConfirmations,
+        int confirmPollSeconds,
+        int confirmTimeoutMinutes,
+        boolean syncEnabled,
+        int syncIntervalMinutes,
+        int syncPageSize,
+        int syncQueueBatchSize,
+        long syncStartBlockHeight,
+        long syncMaxRootBundleBytes,
+        String syncGateway
+) {
+    public static final String TEST_TAG_NAME = "App";
+    public static final String TEST_TAG_VALUE = "test5590";
+    public static final String CHANNEL_TAG_NAME = "c";
+
+    public static ArweaveBlocksConfig load() {
+        AppConfig c = AppConfig.getInstance();
+        return new ArweaveBlocksConfig(
+                c.getBoolean("arweave.blocks.publish.enabled", false),
+                positive(c.getInt("arweave.blocks.publish.intervalMinutes", 15), "publish.intervalMinutes"),
+                positive(c.getInt("arweave.blocks.publish.maxItems", 10_000), "publish.maxItems"),
+                positiveLong(parseLong(c.getParam("arweave.blocks.publish.maxBundleBytes"), 128L * 1024 * 1024), "publish.maxBundleBytes"),
+                orDefault(c.getParam("arweave.blocks.publish.gateway"), "https://arweave.net"),
+                optionalPath(c.getParam("arweave.blocks.publish.walletJwkPath")),
+                nonNegative(c.getInt("arweave.blocks.publish.minConfirmations", 0), "publish.minConfirmations"),
+                positive(c.getInt("arweave.blocks.publish.confirmPollSeconds", 30), "publish.confirmPollSeconds"),
+                positive(c.getInt("arweave.blocks.publish.confirmTimeoutMinutes", 180), "publish.confirmTimeoutMinutes"),
+                c.getBoolean("arweave.blocks.sync.enabled", false),
+                positive(c.getInt("arweave.blocks.sync.intervalMinutes", 15), "sync.intervalMinutes"),
+                clamp(c.getInt("arweave.blocks.sync.pageSize", 100), 1, 100),
+                positive(c.getInt("arweave.blocks.sync.queueBatchSize", 10_000), "sync.queueBatchSize"),
+                nonNegativeLong(parseLong(c.getParam("arweave.blocks.sync.startBlockHeight"), 0L), "sync.startBlockHeight"),
+                positiveLong(parseLong(c.getParam("arweave.blocks.sync.maxRootBundleBytes"), 256L * 1024 * 1024), "sync.maxRootBundleBytes"),
+                orDefault(c.getParam("arweave.blocks.sync.gateway"), "https://turbo-gateway.com")
+        );
+    }
+
+    public void validatePublisher() {
+        if (publishEnabled && walletJwkPath == null) {
+            throw new IllegalArgumentException("arweave.blocks.publish.walletJwkPath is required when publisher is enabled");
+        }
+    }
+
+    private static String orDefault(String v, String d) { return v == null || v.isBlank() ? d : v.trim(); }
+    private static Path optionalPath(String v) { return v == null || v.isBlank() ? null : Path.of(v.trim()); }
+    private static long parseLong(String v, long d) { return v == null || v.isBlank() ? d : Long.parseLong(v.trim()); }
+    private static int positive(int v,String n){if(v<=0)throw new IllegalArgumentException(n+" must be >0");return v;}
+    private static int nonNegative(int v,String n){if(v<0)throw new IllegalArgumentException(n+" must be >=0");return v;}
+    private static long positiveLong(long v,String n){if(v<=0)throw new IllegalArgumentException(n+" must be >0");return v;}
+    private static long nonNegativeLong(long v,String n){if(v<0)throw new IllegalArgumentException(n+" must be >=0");return v;}
+    private static int clamp(int v,int min,int max){return Math.max(min,Math.min(max,v));}
+}
@@ -0,0 +1,141 @@
+package server.archive;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.math.BigInteger;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.security.*;
+import java.security.spec.MGF1ParameterSpec;
+import java.security.spec.PSSParameterSpec;
+import java.security.spec.RSAPrivateCrtKeySpec;
+import java.time.Duration;
+import java.util.*;
+
+/** Existing native Arweave L1 transport adapted to upload in-memory ANS-104 bundles. */
+public final class ArweaveL1Uploader {
+    private static final Logger log = LoggerFactory.getLogger(ArweaveL1Uploader.class);
+    private static final ObjectMapper MAPPER = new ObjectMapper();
+    private static final Base64.Encoder B64 = Base64.getUrlEncoder().withoutPadding();
+    private static final Base64.Decoder B64D = Base64.getUrlDecoder();
+
+    public record Tag(String name, String value) {}
+    public record UploadResult(String txId, byte[] txIdBytes) {}
+
+    private final ArweaveBlocksConfig cfg;
+    private final HttpClient http = HttpClient.newBuilder().connectTimeout(Duration.ofSeconds(20)).build();
+    private volatile Wallet wallet;
+
+    public ArweaveL1Uploader(ArweaveBlocksConfig cfg) { this.cfg = Objects.requireNonNull(cfg); }
+
+    public UploadResult upload(byte[] data, List<Tag> tags) throws Exception {
+        if (data == null || data.length == 0) throw new IllegalArgumentException("Arweave upload data is empty");
+        Wallet w = wallet();
+        String gateway = trimGateway(cfg.publishGateway());
+        ArweaveMerkle.Prepared merkle = ArweaveMerkle.prepare(data);
+        String anchor = getRequiredText(gateway, "/tx_anchor");
+        String reward = getRequiredText(gateway, "/price/" + data.length);
+        if (!reward.matches("^\\d+$")) throw new IOException("Bad Arweave price: " + reward);
+        verifyBalance(gateway, w.address(), reward);
+
+        List<List<byte[]>> tagList = new ArrayList<>();
+        List<Map<String,String>> jsonTags = new ArrayList<>();
+        for (Tag tag : tags == null ? List.<Tag>of() : tags) addTag(jsonTags, tagList, tag.name(), tag.value());
+
+        byte[] signaturePayload = deepHash(List.of(
+                utf8("2"), b64Decode(w.owner()), new byte[0], utf8("0"), utf8(reward),
+                b64Decode(anchor), tagList, utf8(Integer.toString(data.length)), merkle.dataRoot()
+        ));
+        byte[] rawSignature = signPayload(w.privateKey(), signaturePayload);
+        byte[] txIdBytes = sha256(rawSignature);
+        String txId = b64(txIdBytes);
+
+        Map<String,Object> tx = new LinkedHashMap<>();
+        tx.put("format",2); tx.put("id",txId); tx.put("last_tx",anchor); tx.put("owner",w.owner());
+        tx.put("tags",jsonTags); tx.put("target",""); tx.put("quantity","0");
+        tx.put("data_root",b64(merkle.dataRoot())); tx.put("data_size",Integer.toString(data.length)); tx.put("data","");
+        tx.put("reward",reward); tx.put("signature",b64(rawSignature));
+        postJsonExpect2xx(gateway + "/tx", tx, Duration.ofSeconds(60));
+
+        for (int i=0;i<merkle.chunks().size();i++) {
+            ArweaveMerkle.Chunk meta=merkle.chunks().get(i); ArweaveMerkle.Proof proof=merkle.proofs().get(i);
+            Map<String,Object> body=new LinkedHashMap<>();
+            body.put("data_root",b64(merkle.dataRoot())); body.put("data_size",Integer.toString(data.length));
+            body.put("data_path",b64(proof.proof())); body.put("offset",Long.toString(proof.offset()));
+            body.put("chunk",b64(ArweaveMerkle.readChunk(data,meta)));
+            postChunkWithRetry(gateway,body,i,merkle.chunks().size());
+        }
+        if (cfg.minConfirmations() > 0) waitForConfirmations(txId);
+        log.info("ANS-104 bundle uploaded to Arweave: tx={} bytes={} items-transported",txId,data.length);
+        return new UploadResult(txId,txIdBytes);
+    }
+
+    private int waitForConfirmations(String txId) throws Exception {
+        String gateway=trimGateway(cfg.publishGateway());
+        long deadline=System.currentTimeMillis()+cfg.confirmTimeoutMinutes()*60_000L; int last=0;
+        while(System.currentTimeMillis()<deadline){
+            HttpRequest req=HttpRequest.newBuilder(URI.create(gateway+"/tx/"+txId+"/status")).timeout(Duration.ofSeconds(20)).GET().build();
+            HttpResponse<String> resp=http.send(req,HttpResponse.BodyHandlers.ofString(StandardCharsets.UTF_8));
+            if(resp.statusCode()==200){JsonNode j=MAPPER.readTree(resp.body());last=j.path("number_of_confirmations").asInt(0);if(last>=cfg.minConfirmations())return last;}
+            else if(resp.statusCode()!=202&&resp.statusCode()!=404)log.warn("Arweave status tx={} HTTP {}",txId,resp.statusCode());
+            Thread.sleep(cfg.confirmPollSeconds()*1000L);
+        }
+        throw new IOException("Arweave confirmation timeout for "+txId+", last="+last);
+    }
+
+    private void postChunkWithRetry(String gateway,Map<String,Object> body,int index,int total)throws Exception{
+        Exception last=null;
+        for(int attempt=1;attempt<=12;attempt++)try{postJsonExpect2xx(gateway+"/chunk",body,Duration.ofSeconds(60));return;}catch(Exception e){last=e;if(attempt==12)break;Thread.sleep(5000L);}
+        throw new IOException("Failed Arweave chunk "+(index+1)+"/"+total,last);
+    }
+    private void postJsonExpect2xx(String url,Object body,Duration timeout)throws Exception{
+        HttpRequest req=HttpRequest.newBuilder(URI.create(url)).timeout(timeout).header("Content-Type","application/json").header("Accept","application/json")
+                .POST(HttpRequest.BodyPublishers.ofString(MAPPER.writeValueAsString(body),StandardCharsets.UTF_8)).build();
+        HttpResponse<String> resp=http.send(req,HttpResponse.BodyHandlers.ofString(StandardCharsets.UTF_8));
+        if(resp.statusCode()<200||resp.statusCode()>=300)throw new IOException("HTTP "+resp.statusCode()+" "+safe(resp.body()));
+    }
+    private void verifyBalance(String gateway,String address,String reward)throws Exception{
+        String balance=getRequiredText(gateway,"/wallet/"+address+"/balance");
+        if(balance.matches("^\\d+$")&&new BigInteger(balance).compareTo(new BigInteger(reward))<0)throw new IllegalStateException("Not enough AR: balance="+balance+" reward="+reward);
+    }
+    private String getRequiredText(String gateway,String path)throws Exception{
+        HttpRequest req=HttpRequest.newBuilder(URI.create(gateway+path)).timeout(Duration.ofSeconds(20)).GET().build();
+        HttpResponse<String> resp=http.send(req,HttpResponse.BodyHandlers.ofString(StandardCharsets.UTF_8));
+        if(resp.statusCode()<200||resp.statusCode()>=300)throw new IOException("Arweave HTTP "+resp.statusCode()+" for "+path+": "+safe(resp.body()));
+        String s=resp.body()==null?"":resp.body().trim();if(s.isBlank())throw new IOException("Empty Arweave response for "+path);return s;
+    }
+    private Wallet wallet()throws Exception{
+        Wallet local=wallet;if(local!=null)return local;synchronized(this){if(wallet!=null)return wallet;
+            JsonNode jwk=MAPPER.readTree(Files.readString(cfg.walletJwkPath(),StandardCharsets.UTF_8));String owner=required(jwk,"n");
+            PrivateKey pk=buildPrivateKey(jwk);String address=b64(sha256(b64Decode(owner)));return wallet=new Wallet(owner,address,pk);}
+    }
+    private static PrivateKey buildPrivateKey(JsonNode jwk)throws GeneralSecurityException{
+        RSAPrivateCrtKeySpec spec=new RSAPrivateCrtKeySpec(big(required(jwk,"n")),big(required(jwk,"e")),big(required(jwk,"d")),big(required(jwk,"p")),big(required(jwk,"q")),big(required(jwk,"dp")),big(required(jwk,"dq")),big(required(jwk,"qi")));
+        return KeyFactory.getInstance("RSA").generatePrivate(spec);
+    }
+    private static byte[] signPayload(PrivateKey key,byte[] payload)throws GeneralSecurityException{
+        Signature s=Signature.getInstance("RSASSA-PSS");s.setParameter(new PSSParameterSpec("SHA-256","MGF1",MGF1ParameterSpec.SHA256,32,1));s.initSign(key);s.update(payload);return s.sign();
+    }
+    private static byte[] deepHash(Object data)throws GeneralSecurityException{
+        if(data instanceof List<?> list){byte[] acc=sha384(utf8("list"+list.size()));for(Object item:list)acc=sha384(concat(acc,deepHash(item)));return acc;}
+        if(!(data instanceof byte[] bytes))throw new IllegalArgumentException("deepHash byte[]/List expected");return sha384(concat(sha384(utf8("blob"+bytes.length)),sha384(bytes)));
+    }
+    private static void addTag(List<Map<String,String>> json,List<List<byte[]>> raw,String name,String value){byte[]n=utf8(name),v=utf8(value);Map<String,String>m=new LinkedHashMap<>();m.put("name",b64(n));m.put("value",b64(v));json.add(m);raw.add(List.of(n,v));}
+    private static String required(JsonNode n,String f){String s=n==null?"":n.path(f).asText("").trim();if(s.isBlank())throw new IllegalStateException("Arweave JWK missing "+f);return s;}
+    private static BigInteger big(String s){return new BigInteger(1,b64Decode(s));}
+    private static String trimGateway(String s){return(s==null?"https://arweave.net":s.trim()).replaceAll("/+$","");}
+    private static byte[] utf8(String s){return String.valueOf(s==null?"":s).getBytes(StandardCharsets.UTF_8);}
+    private static byte[] b64Decode(String s){return B64D.decode(s);}private static String b64(byte[]b){return B64.encodeToString(b);}
+    private static byte[] sha256(byte[]b)throws GeneralSecurityException{return MessageDigest.getInstance("SHA-256").digest(b);}private static byte[] sha384(byte[]b)throws GeneralSecurityException{return MessageDigest.getInstance("SHA-384").digest(b);}
+    private static byte[] concat(byte[]...a){int n=0;for(byte[]x:a)n=Math.addExact(n,x.length);byte[]o=new byte[n];int p=0;for(byte[]x:a){System.arraycopy(x,0,o,p,x.length);p+=x.length;}return o;}
+    private static String safe(String s){s=String.valueOf(s==null?"":s).replace('\n',' ').replace('\r',' ').trim();return s.length()<=250?s:s.substring(0,250)+"...";}
+    private record Wallet(String owner,String address,PrivateKey privateKey){}
+}
@@ -0,0 +1,206 @@
+package server.archive;
+
+import java.io.*;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.*;
+
+/**
+ * Arweave v2 data Merkle tree/proofs. Алгоритм повторяет arweave-js merkle.ts.
+ */
+final class ArweaveMerkle {
+    static final int MAX_CHUNK_SIZE = 256 * 1024;
+    static final int MIN_CHUNK_SIZE = 32 * 1024;
+
+    record Chunk(byte[] dataHash, long minByteRange, long maxByteRange) {
+        long size() { return maxByteRange - minByteRange; }
+    }
+    record Proof(long offset, byte[] proof) {}
+    record Prepared(byte[] dataRoot, List<Chunk> chunks, List<Proof> proofs) {}
+
+    private sealed interface Node permits Leaf, Branch {
+        byte[] id();
+        long maxByteRange();
+    }
+    private record Leaf(byte[] id, byte[] dataHash, long minByteRange, long maxByteRange) implements Node {}
+    private record Branch(byte[] id, long byteRange, long maxByteRange, Node left, Node right) implements Node {}
+
+    private ArweaveMerkle() {}
+
+
+    static Prepared prepare(byte[] data) throws IOException {
+        if (data == null || data.length == 0) throw new IOException("Arweave data is empty");
+        List<Chunk> chunks = chunkBytes(data);
+        List<Node> leaves = new ArrayList<>(chunks.size());
+        for (Chunk c : chunks) {
+            byte[] id = sha256(concat(sha256(c.dataHash()), sha256(note(c.maxByteRange()))));
+            leaves.add(new Leaf(id, c.dataHash(), c.minByteRange(), c.maxByteRange()));
+        }
+        Node root = buildLayers(leaves);
+        List<Proof> proofs = new ArrayList<>();
+        resolveProofs(root, new byte[0], proofs);
+        if (!chunks.isEmpty() && chunks.get(chunks.size() - 1).size() == 0) {
+            chunks = new ArrayList<>(chunks);
+            chunks.remove(chunks.size() - 1);
+            proofs.remove(proofs.size() - 1);
+        }
+        if (chunks.size() != proofs.size()) throw new IOException("Arweave Merkle: chunks/proofs mismatch");
+        return new Prepared(root.id(), List.copyOf(chunks), List.copyOf(proofs));
+    }
+
+    private static List<Chunk> chunkBytes(byte[] data) {
+        List<Chunk> out = new ArrayList<>();
+        long remaining = data.length;
+        long cursor = 0;
+        int p = 0;
+        while (remaining >= MAX_CHUNK_SIZE) {
+            long chunkSize = MAX_CHUNK_SIZE;
+            long next = remaining - MAX_CHUNK_SIZE;
+            if (next > 0 && next < MIN_CHUNK_SIZE) chunkSize = (remaining + 1) / 2;
+            byte[] chunk = Arrays.copyOfRange(data, p, p + (int) chunkSize);
+            out.add(new Chunk(sha256(chunk), cursor, cursor + chunkSize));
+            p += (int) chunkSize;
+            cursor += chunkSize;
+            remaining -= chunkSize;
+        }
+        byte[] rest = Arrays.copyOfRange(data, p, p + (int) remaining);
+        out.add(new Chunk(sha256(rest), cursor, cursor + remaining));
+        return out;
+    }
+
+    static byte[] readChunk(byte[] data, Chunk c) throws IOException {
+        long len = c.size();
+        if (data == null || len < 0 || len > Integer.MAX_VALUE || c.minByteRange() < 0 || c.maxByteRange() > data.length) {
+            throw new IOException("Invalid Arweave chunk range");
+        }
+        return Arrays.copyOfRange(data, (int) c.minByteRange(), (int) c.maxByteRange());
+    }
+
+    static Prepared prepare(Path file) throws IOException {
+        long fileSize = Files.size(file);
+        List<Chunk> chunks = chunkFile(file, fileSize);
+        List<Node> leaves = new ArrayList<>(chunks.size());
+        for (Chunk c : chunks) {
+            byte[] id = sha256(concat(sha256(c.dataHash()), sha256(note(c.maxByteRange()))));
+            leaves.add(new Leaf(id, c.dataHash(), c.minByteRange(), c.maxByteRange()));
+        }
+        if (leaves.isEmpty()) throw new IOException("Arweave Merkle: нет leaves");
+        Node root = buildLayers(leaves);
+        List<Proof> proofs = new ArrayList<>();
+        resolveProofs(root, new byte[0], proofs);
+
+        // arweave-js строит root вместе с нулевым последним chunk при точном кратном 256KiB,
+        // но сам нулевой chunk/proof не загружает.
+        if (!chunks.isEmpty() && chunks.get(chunks.size() - 1).size() == 0) {
+            chunks = new ArrayList<>(chunks);
+            chunks.remove(chunks.size() - 1);
+            proofs.remove(proofs.size() - 1);
+        }
+        if (chunks.size() != proofs.size()) throw new IOException("Arweave Merkle: chunks/proofs mismatch");
+        return new Prepared(root.id(), List.copyOf(chunks), List.copyOf(proofs));
+    }
+
+    private static List<Chunk> chunkFile(Path file, long fileSize) throws IOException {
+        List<Chunk> out = new ArrayList<>();
+        long remaining = fileSize;
+        long cursor = 0;
+        try (InputStream in = new BufferedInputStream(Files.newInputStream(file))) {
+            while (remaining >= MAX_CHUNK_SIZE) {
+                long chunkSize = MAX_CHUNK_SIZE;
+                long next = remaining - MAX_CHUNK_SIZE;
+                if (next > 0 && next < MIN_CHUNK_SIZE) {
+                    chunkSize = (remaining + 1) / 2;
+                }
+                byte[] data = readExact(in, (int)chunkSize);
+                out.add(new Chunk(sha256(data), cursor, cursor + chunkSize));
+                cursor += chunkSize;
+                remaining -= chunkSize;
+            }
+            byte[] rest = readExact(in, (int)remaining);
+            out.add(new Chunk(sha256(rest), cursor, cursor + remaining));
+        }
+        return out;
+    }
+
+    private static Node buildLayers(List<Node> nodes) {
+        if (nodes.size() < 2) return nodes.get(0);
+        List<Node> next = new ArrayList<>((nodes.size() + 1) / 2);
+        for (int i = 0; i < nodes.size(); i += 2) {
+            Node left = nodes.get(i);
+            Node right = i + 1 < nodes.size() ? nodes.get(i + 1) : null;
+            if (right == null) {
+                next.add(left);
+                continue;
+            }
+            long byteRange = left.maxByteRange();
+            byte[] id = sha256(concat(
+                    sha256(left.id()),
+                    sha256(right.id()),
+                    sha256(note(byteRange))
+            ));
+            next.add(new Branch(id, byteRange, right.maxByteRange(), left, right));
+        }
+        return buildLayers(next);
+    }
+
+    private static void resolveProofs(Node node, byte[] prefix, List<Proof> out) {
+        if (node instanceof Leaf leaf) {
+            out.add(new Proof(leaf.maxByteRange() - 1,
+                    concat(prefix, leaf.dataHash(), note(leaf.maxByteRange()))));
+            return;
+        }
+        Branch b = (Branch) node;
+        byte[] partial = concat(prefix, b.left().id(), b.right().id(), note(b.byteRange()));
+        resolveProofs(b.left(), partial, out);
+        resolveProofs(b.right(), partial, out);
+    }
+
+    static byte[] readChunk(Path file, Chunk c) throws IOException {
+        long len = c.size();
+        if (len < 0 || len > Integer.MAX_VALUE) throw new IOException("Некорректный Arweave chunk size: " + len);
+        try (RandomAccessFile raf = new RandomAccessFile(file.toFile(), "r")) {
+            raf.seek(c.minByteRange());
+            byte[] data = new byte[(int)len];
+            raf.readFully(data);
+            return data;
+        }
+    }
+
+    private static byte[] readExact(InputStream in, int len) throws IOException {
+        byte[] out = new byte[len];
+        int pos = 0;
+        while (pos < len) {
+            int n = in.read(out, pos, len - pos);
+            if (n < 0) throw new EOFException("Неожиданный EOF");
+            pos += n;
+        }
+        return out;
+    }
+
+    private static byte[] note(long value) {
+        if (value < 0) throw new IllegalArgumentException("negative note");
+        byte[] out = new byte[32];
+        long v = value;
+        for (int i = 31; i >= 0 && v != 0; i--) {
+            out[i] = (byte)(v & 0xff);
+            v >>>= 8;
+        }
+        return out;
+    }
+
+    private static byte[] sha256(byte[] data) {
+        try { return MessageDigest.getInstance("SHA-256").digest(data); }
+        catch (NoSuchAlgorithmException e) { throw new IllegalStateException(e); }
+    }
+
+    private static byte[] concat(byte[]... arrays) {
+        int len = 0;
+        for (byte[] a : arrays) len = Math.addExact(len, a.length);
+        byte[] out = new byte[len];
+        int p=0;
+        for (byte[] a : arrays) { System.arraycopy(a,0,out,p,a.length); p+=a.length; }
+        return out;
+    }
+}
@@ -0,0 +1,36 @@
+package server.archive;
+
+import blockchain.Ans104DataItem;
+import org.junit.jupiter.api.Test;
+import utils.crypto.Ed25519Util;
+
+import java.nio.charset.StandardCharsets;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+final class Ans104BundleTest {
+    @Test
+    void writeReadAndFindPreserveExactDataItems() {
+        byte[] a = item("a");
+        byte[] b = item("b");
+        byte[] bundle = Ans104Bundle.write(List.of(a, b));
+
+        List<Ans104Bundle.Entry> entries = Ans104Bundle.read(bundle, 10);
+        assertEquals(2, entries.size());
+        assertArrayEquals(a, entries.get(0).rawDataItem());
+        assertArrayEquals(b, entries.get(1).rawDataItem());
+
+        byte[] bId = new Ans104DataItem(b).id32();
+        assertArrayEquals(b, Ans104Bundle.find(bundle, bId, 10));
+    }
+
+    private static byte[] item(String payload) {
+        byte[] privateKey = Ed25519Util.generatePrivateKeyFromString("bundle-" + payload);
+        byte[] owner = Ed25519Util.derivePublicKey(privateKey);
+        byte[] data = payload.getBytes(StandardCharsets.UTF_8);
+        List<Ans104DataItem.Tag> tags = List.of(new Ans104DataItem.Tag("App", "test5590"));
+        byte[] signature = Ed25519Util.sign(Ans104DataItem.buildSigningMessage(owner, tags, data), privateKey);
+        return Ans104DataItem.serializeEd25519(signature, owner, tags, data);
+    }
+}
@@ -0,0 +1,363 @@
+package blockchain;
+
+import utils.crypto.Ed25519Util;
+
+import java.io.ByteArrayOutputStream;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * Minimal ANS-104 DataItem parser/verifier used by SHiNE.
+ *
+ * SHiNE accepts only generic Ed25519 signature type 2:
+ *   uint16le signatureType
+ *   signature[64]
+ *   owner[32]
+ *   target_present[1] + target[32] when present
+ *   anchor_present[1] + anchor[32] when present
+ *   tags_count uint64le
+ *   tags_size  uint64le
+ *   avro_tags[tags_size]
+ *   data[*]
+ *
+ * The signing message matches the deployed arbundles/Turbo DataItem implementation:
+ * deepHash(["dataitem", "1", signatureType, owner, target, anchor, rawAvroTags, data]).
+ */
+public final class Ans104DataItem {
+    public static final int SIGNATURE_TYPE_ED25519 = 2;
+    public static final int SIGNATURE_LEN = 64;
+    public static final int OWNER_LEN = 32;
+    public static final int OPTIONAL_FIELD_LEN = 32;
+    public static final int ID_LEN = 32;
+    public static final int MAX_DATA_ITEM_BYTES = 8 * 1024 * 1024;
+    public static final int MAX_TAGS_BYTES = 64 * 1024;
+    public static final long MAX_TAGS_COUNT = 128;
+
+    public record Tag(String name, String value) {}
+
+    private final int signatureType;
+    private final byte[] signature;
+    private final byte[] owner;
+    private final byte[] target;
+    private final byte[] anchor;
+    private final long tagsCount;
+    private final byte[] rawTags;
+    private final List<Tag> tags;
+    private final byte[] data;
+    private final byte[] rawBytes;
+    private final byte[] id;
+
+    public Ans104DataItem(byte[] bytes) {
+        Objects.requireNonNull(bytes, "bytes == null");
+        if (bytes.length < 2 + SIGNATURE_LEN + OWNER_LEN + 1 + 1 + 8 + 8 + 1) {
+            throw new IllegalArgumentException("ANS-104 DataItem too short: " + bytes.length);
+        }
+        if (bytes.length > MAX_DATA_ITEM_BYTES) {
+            throw new IllegalArgumentException("ANS-104 DataItem too large: " + bytes.length);
+        }
+
+        ByteBuffer bb = ByteBuffer.wrap(bytes).order(ByteOrder.LITTLE_ENDIAN);
+        this.signatureType = Short.toUnsignedInt(bb.getShort());
+        if (signatureType != SIGNATURE_TYPE_ED25519) {
+            throw new IllegalArgumentException("Unsupported ANS-104 signature type: " + signatureType + " (expected 2)");
+        }
+
+        this.signature = readExact(bb, SIGNATURE_LEN, "signature");
+        this.owner = readExact(bb, OWNER_LEN, "owner");
+        this.target = readOptional32(bb, "target");
+        this.anchor = readOptional32(bb, "anchor");
+
+        this.tagsCount = readUnsignedLongAsNonNegative(bb, "tags_count");
+        long tagsSizeLong = readUnsignedLongAsNonNegative(bb, "tags_size");
+        if (tagsCount > MAX_TAGS_COUNT) {
+            throw new IllegalArgumentException("Too many ANS-104 tags: " + tagsCount);
+        }
+        if (tagsSizeLong > MAX_TAGS_BYTES || tagsSizeLong > bb.remaining()) {
+            throw new IllegalArgumentException("Bad ANS-104 tags_size: " + tagsSizeLong + ", remaining=" + bb.remaining());
+        }
+        this.rawTags = readExact(bb, (int) tagsSizeLong, "tags");
+        this.tags = Collections.unmodifiableList(parseAvroTags(rawTags, tagsCount));
+        this.data = new byte[bb.remaining()];
+        bb.get(this.data);
+        this.rawBytes = Arrays.copyOf(bytes, bytes.length);
+        this.id = sha256(signature);
+    }
+
+    public int signatureType() { return signatureType; }
+    public byte[] signature64() { return Arrays.copyOf(signature, signature.length); }
+    public byte[] owner32() { return Arrays.copyOf(owner, owner.length); }
+    public byte[] target() { return Arrays.copyOf(target, target.length); }
+    public byte[] anchor() { return Arrays.copyOf(anchor, anchor.length); }
+    public long tagsCount() { return tagsCount; }
+    public byte[] rawTags() { return Arrays.copyOf(rawTags, rawTags.length); }
+    public List<Tag> tags() { return tags; }
+    public byte[] data() { return Arrays.copyOf(data, data.length); }
+    public byte[] rawBytes() { return Arrays.copyOf(rawBytes, rawBytes.length); }
+    public byte[] id32() { return Arrays.copyOf(id, id.length); }
+
+    public String tagValue(String name) {
+        if (name == null) return null;
+        for (Tag tag : tags) {
+            if (name.equals(tag.name())) return tag.value();
+        }
+        return null;
+    }
+
+    public boolean hasTag(String name, String value) {
+        for (Tag tag : tags) {
+            if (Objects.equals(name, tag.name()) && Objects.equals(value, tag.value())) return true;
+        }
+        return false;
+    }
+
+    public boolean verifySignature() {
+        return Ed25519Util.verify(signingMessage(), signature, owner);
+    }
+
+    public boolean ownerEquals(byte[] expectedOwner32) {
+        return expectedOwner32 != null && expectedOwner32.length == OWNER_LEN && Arrays.equals(owner, expectedOwner32);
+    }
+
+    public byte[] signingMessage() {
+        return buildSigningMessage(owner, target, anchor, tags, data);
+    }
+
+    /**
+     * Builds the exact ANS-104 signing message for generic Ed25519 DataItems.
+     * Useful for SHiNE clients/tests that must sign a DataItem before serializing it.
+     */
+    public static byte[] buildSigningMessage(byte[] owner32, List<Tag> tags, byte[] data) {
+        return buildSigningMessage(owner32, new byte[0], new byte[0], tags, data);
+    }
+
+    public static byte[] buildSigningMessage(byte[] owner32, byte[] target, byte[] anchor, List<Tag> tags, byte[] data) {
+        requireLen(owner32, OWNER_LEN, "owner");
+        byte[] safeTarget = target == null ? new byte[0] : Arrays.copyOf(target, target.length);
+        byte[] safeAnchor = anchor == null ? new byte[0] : Arrays.copyOf(anchor, anchor.length);
+        if (!(safeTarget.length == 0 || safeTarget.length == OPTIONAL_FIELD_LEN)) {
+            throw new IllegalArgumentException("target must be empty or 32 bytes");
+        }
+        if (!(safeAnchor.length == 0 || safeAnchor.length == OPTIONAL_FIELD_LEN)) {
+            throw new IllegalArgumentException("anchor must be empty or 32 bytes");
+        }
+        List<Tag> safeTags = validateTags(tags);
+        byte[] safeData = data == null ? new byte[0] : Arrays.copyOf(data, data.length);
+
+        byte[] rawTags = serializeAvroTags(safeTags);
+        return deepHash(List.of(
+                utf8("dataitem"),
+                utf8("1"),
+                utf8(Integer.toString(SIGNATURE_TYPE_ED25519)),
+                Arrays.copyOf(owner32, owner32.length),
+                safeTarget,
+                safeAnchor,
+                rawTags,
+                safeData
+        ));
+    }
+
+    /** Serialize one SHiNE-ready ANS-104 DataItem with empty target/anchor. */
+    public static byte[] serializeEd25519(byte[] signature64, byte[] owner32, List<Tag> tags, byte[] data) {
+        requireLen(signature64, SIGNATURE_LEN, "signature");
+        requireLen(owner32, OWNER_LEN, "owner");
+        List<Tag> safeTags = validateTags(tags);
+        byte[] rawTags = serializeAvroTags(safeTags);
+        byte[] safeData = data == null ? new byte[0] : data;
+
+        ByteArrayOutputStream out = new ByteArrayOutputStream(
+                2 + SIGNATURE_LEN + OWNER_LEN + 1 + 1 + 8 + 8 + rawTags.length + safeData.length);
+        writeU16LE(out, SIGNATURE_TYPE_ED25519);
+        out.writeBytes(signature64);
+        out.writeBytes(owner32);
+        out.write(0); // target absent
+        out.write(0); // anchor absent
+        writeU64LE(out, safeTags.size());
+        writeU64LE(out, rawTags.length);
+        out.writeBytes(rawTags);
+        out.writeBytes(safeData);
+        return out.toByteArray();
+    }
+
+    private static byte[] readOptional32(ByteBuffer bb, String name) {
+        if (!bb.hasRemaining()) throw new IllegalArgumentException("Missing " + name + " presence byte");
+        int present = Byte.toUnsignedInt(bb.get());
+        if (present == 0) return new byte[0];
+        if (present != 1) throw new IllegalArgumentException("Bad " + name + " presence byte: " + present);
+        return readExact(bb, OPTIONAL_FIELD_LEN, name);
+    }
+
+    private static byte[] readExact(ByteBuffer bb, int len, String field) {
+        if (len < 0 || bb.remaining() < len) {
+            throw new IllegalArgumentException("ANS-104 " + field + " truncated: need=" + len + " remaining=" + bb.remaining());
+        }
+        byte[] out = new byte[len];
+        bb.get(out);
+        return out;
+    }
+
+    private static long readUnsignedLongAsNonNegative(ByteBuffer bb, String field) {
+        if (bb.remaining() < 8) throw new IllegalArgumentException("Missing ANS-104 " + field);
+        long v = bb.getLong();
+        if (v < 0) throw new IllegalArgumentException("ANS-104 " + field + " exceeds signed long range");
+        return v;
+    }
+
+    private static List<Tag> validateTags(List<Tag> tags) {
+        List<Tag> safe = tags == null ? List.of() : List.copyOf(tags);
+        if (safe.size() > MAX_TAGS_COUNT) {
+            throw new IllegalArgumentException("Too many ANS-104 tags: " + safe.size());
+        }
+        for (Tag tag : safe) {
+            if (tag == null || tag.name() == null || tag.value() == null || tag.name().isEmpty() || tag.value().isEmpty()) {
+                throw new IllegalArgumentException("ANS-104 tag name/value must be non-empty");
+            }
+            if (utf8(tag.name()).length > 1024) throw new IllegalArgumentException("ANS-104 tag name exceeds 1024 bytes");
+            if (utf8(tag.value()).length > 3072) throw new IllegalArgumentException("ANS-104 tag value exceeds 3072 bytes");
+        }
+        return safe;
+    }
+
+    private static byte[] serializeAvroTags(List<Tag> tags) {
+        ByteArrayOutputStream out = new ByteArrayOutputStream();
+        if (!tags.isEmpty()) {
+            writeAvroLong(out, tags.size());
+            for (Tag tag : tags) {
+                writeAvroString(out, tag.name());
+                writeAvroString(out, tag.value());
+            }
+        }
+        writeAvroLong(out, 0); // array terminator; also the complete encoding for an empty array
+        byte[] raw = out.toByteArray();
+        if (raw.length > MAX_TAGS_BYTES) throw new IllegalArgumentException("ANS-104 tags exceed " + MAX_TAGS_BYTES + " bytes");
+        return raw;
+    }
+
+    private static void writeAvroString(ByteArrayOutputStream out, String value) {
+        byte[] bytes = utf8(value);
+        writeAvroLong(out, bytes.length);
+        out.writeBytes(bytes);
+    }
+
+    private static void writeAvroLong(ByteArrayOutputStream out, long value) {
+        long n = (value << 1) ^ (value >> 63);
+        while ((n & ~0x7fL) != 0) {
+            out.write((int) ((n & 0x7f) | 0x80));
+            n >>>= 7;
+        }
+        out.write((int) n);
+    }
+
+    private static void writeU16LE(ByteArrayOutputStream out, int value) {
+        out.write(value & 0xff);
+        out.write((value >>> 8) & 0xff);
+    }
+
+    private static void writeU64LE(ByteArrayOutputStream out, long value) {
+        for (int i = 0; i < 8; i++) out.write((int) ((value >>> (8 * i)) & 0xff));
+    }
+
+    private static void requireLen(byte[] bytes, int expected, String name) {
+        if (bytes == null || bytes.length != expected) {
+            throw new IllegalArgumentException(name + " must be " + expected + " bytes");
+        }
+    }
+
+    private static List<Tag> parseAvroTags(byte[] raw, long declaredCount) {
+        AvroCursor c = new AvroCursor(raw);
+        List<Tag> out = new ArrayList<>();
+        while (!c.eof()) {
+            long count = c.readLong();
+            if (count == 0) break;
+            if (count < 0) {
+                count = -count;
+                long blockBytes = c.readLong();
+                if (blockBytes < 0) throw new IllegalArgumentException("Negative Avro tag block size");
+            }
+            if (count > MAX_TAGS_COUNT || out.size() + count > MAX_TAGS_COUNT) {
+                throw new IllegalArgumentException("Too many Avro tags");
+            }
+            for (long i = 0; i < count; i++) {
+                String name = c.readString();
+                String value = c.readString();
+                if (name.isEmpty() || value.isEmpty()) throw new IllegalArgumentException("ANS-104 tag name/value must be non-empty");
+                if (name.getBytes(StandardCharsets.UTF_8).length > 1024) throw new IllegalArgumentException("ANS-104 tag name exceeds 1024 bytes");
+                if (value.getBytes(StandardCharsets.UTF_8).length > 3072) throw new IllegalArgumentException("ANS-104 tag value exceeds 3072 bytes");
+                out.add(new Tag(name, value));
+            }
+        }
+        if (!c.eof()) {
+            throw new IllegalArgumentException("Trailing bytes in ANS-104 Avro tags");
+        }
+        if (out.size() != declaredCount) {
+            throw new IllegalArgumentException("ANS-104 tags_count mismatch: declared=" + declaredCount + " parsed=" + out.size());
+        }
+        return out;
+    }
+
+    private static final class AvroCursor {
+        private final byte[] data;
+        private int p;
+        private AvroCursor(byte[] data) { this.data = data == null ? new byte[0] : data; }
+        boolean eof() { return p == data.length; }
+        long readLong() {
+            long raw = 0;
+            int shift = 0;
+            while (true) {
+                if (p >= data.length) throw new IllegalArgumentException("Truncated Avro long");
+                int b = data[p++] & 0xff;
+                raw |= (long) (b & 0x7f) << shift;
+                if ((b & 0x80) == 0) break;
+                shift += 7;
+                if (shift > 63) throw new IllegalArgumentException("Avro long too large");
+            }
+            return (raw >>> 1) ^ -(raw & 1L);
+        }
+        String readString() {
+            long len = readLong();
+            if (len < 0 || len > Integer.MAX_VALUE || p + len > data.length) {
+                throw new IllegalArgumentException("Bad Avro string length: " + len);
+            }
+            String s = new String(data, p, (int) len, StandardCharsets.UTF_8);
+            p += (int) len;
+            return s;
+        }
+    }
+
+    private static byte[] deepHash(Object item) {
+        if (item instanceof byte[] bytes) {
+            return deepHashBlob(bytes);
+        }
+        if (item instanceof List<?> items) {
+            byte[] acc = sha384(utf8("list" + items.size()));
+            for (Object child : items) {
+                acc = sha384(concat(acc, deepHash(child)));
+            }
+            return acc;
+        }
+        throw new IllegalArgumentException("Unsupported deepHash item: " + (item == null ? "null" : item.getClass()));
+    }
+
+    private static byte[] deepHashBlob(byte[] bytes) {
+        byte[] tag = utf8("blob" + bytes.length);
+        return sha384(concat(sha384(tag), sha384(bytes)));
+    }
+
+    private static byte[] utf8(String s) { return s.getBytes(StandardCharsets.UTF_8); }
+    private static byte[] sha256(byte[] b) { return digest("SHA-256", b); }
+    private static byte[] sha384(byte[] b) { return digest("SHA-384", b); }
+    private static byte[] digest(String alg, byte[] b) {
+        try { return MessageDigest.getInstance(alg).digest(b); }
+        catch (Exception e) { throw new IllegalStateException(alg + " unavailable", e); }
+    }
+    private static byte[] concat(byte[] a, byte[] b) {
+        ByteArrayOutputStream out = new ByteArrayOutputStream(a.length + b.length);
+        out.writeBytes(a); out.writeBytes(b); return out.toByteArray();
+    }
+}
@@ -9,364 +9,116 @@ import java.util.Arrays;
 import java.util.Objects;

 /**
- * BchBlockEntry — универсальный блок формата SHiNE (Frame v0).
+ * SHiNE user block, Frame v1, carried as the data payload of an ANS-104 DataItem.
 *
- * =========================================================================
- *  FRAME v0 — ФИКСИРОВАННЫЙ ФОРМАТ БЛОКА (ДОКУМЕНТ ПРОТОКОЛА)
- * =========================================================================
+ * The constructor accepts the complete serialized ANS-104 DataItem because this is
+ * exactly what is stored in PostgreSQL and exchanged between servers.
 *
- * Все числа BigEndian.
+ * SHiNE Frame v1 (all integer fields BigEndian):
+ *   [2]  frameCode = 0x0001
+ *   [32] prevHash32 = SHA-256(Frame v1 bytes of previous SHiNE block)
+ *   [4]  blockSize = exact Frame v1 byte length
+ *   [4]  blockNumber
+ *   [8]  timestamp unix seconds
+ *   [2]  type
+ *   [2]  subType
+ *   [2]  version
+ *   [N]  bodyBytes
 *
- * PREIMAGE (входит в blockSize, подписывается):
- *   [2]  frameCode        (uint16)   код/версия рамки:
- *                                     - 0x0000 = Frame v0 (текущий)
- *   [32] prevHash32       (bytes)    SHA-256(preimage) предыдущего блока (цепочка)
- *   [4]  blockSize        (int32)    размер preimage (в байтах), ВКЛЮЧАЯ frameCode,
- *                                   НО БЕЗ sigMarker и БЕЗ signature64
- *   [4]  blockNumber      (int32)    глобальный номер блока (>=0)
- *   [8]  timestamp        (int64)    unix seconds
- *   [2]  type             (uint16)   тип сообщения
- *   [2]  subType          (uint16)   подтип сообщения
- *   [2]  version          (uint16)   версия формата сообщения
- *   [N]  bodyBytes        (bytes)    тело сообщения (БЕЗ type/subType/version)
- *
- * TAIL (НЕ входит в blockSize, НЕ подписывается в Frame v0):
- *   [2]  sigMarker        (uint16)   маркер подписи:
- *                                     - 0x0100 (256) = далее подпись Ed25519 64 байта
- *   [64] signature64      (bytes)    Ed25519 signature над hash32
- *
- * hash32 НЕ хранится в блоке.
- * hash32 вычисляется при парсинге:
- *   preimage = первые blockSize байт
- *   hash32   = SHA-256(preimage)
- *
- * Правила MVP-парсера (Frame v0):
- *  - frameCode должен быть строго 0x0000, иначе REJECT.
- *  - sigMarker должен быть строго 0x0100, иначе REJECT.
- *  - подпись обязана присутствовать всегда (sigMarker+signature64).
- *  - НИКАКИХ fallback-веток “если маркер другой, то подписи нет/другой хвост”.
- *
- * Важно по безопасности:
- *  - sigMarker в v0 не входит в подписываемые байты → его можно подменить,
- *    поэтому единственная безопасная логика: "если не 0x0100 — reject".
- * =========================================================================
+ * The user signature is NOT stored in this frame. It is the single Ed25519/Solana
+ * signature of the surrounding ANS-104 DataItem.
 */
 public final class BchBlockEntry {
-
-    public static final int SIGNATURE_LEN = 64;
    public static final int HASH_LEN = 32;
-
-    public static final int FRAME_CODE_LEN = 2;
-    public static final int SIG_MARKER_LEN = 2;
-
-    /** Frame v0 */
-    public static final int FRAME_CODE_V0 = 0x0000;
-
-    /** sigMarker: 256 = 0x0100 */
-    public static final int SIG_MARKER_ED25519 = 0x0100;
-
-    /**
-     * Максимальный допустимый размер блока (fullBytes = preimage + sigMarker + signature),
-     * чтобы не уложить сервер по памяти/диску.
-     */
-    public static final int MAX_BLOCK_FULL_BYTES = 4 * 1024 * 1024;
-
-    /**
-     * Насколько блок может “обгонять” текущее время (защита от кривых часов/вбросов).
-     * Если timestamp больше now + 60 сек — блок считаем неверным.
-     */
+    public static final int FRAME_CODE_V1 = 0x0001;
+    public static final int MAX_BLOCK_FULL_BYTES = Ans104DataItem.MAX_DATA_ITEM_BYTES;
    public static final long MAX_FUTURE_SECONDS = 60;
+    public static final int FRAME_HEADER_SIZE = 2 + 32 + 4 + 4 + 8 + 2 + 2 + 2;

-    /**
-     * Размер фиксированной части PREIMAGE (без bodyBytes).
-     *
-     * PREIMAGE header:
-     *   frameCode(2) + prevHash32(32) + blockSize(4) + blockNumber(4) + timestamp(8)
-     *   + type(2) + subType(2) + version(2)
-     */
-    public static final int PREIMAGE_HEADER_SIZE =
-            2   // frameCode
-            + 32 // prevHash32
-            + 4  // blockSize
-            + 4  // blockNumber
-            + 8  // timestamp
-            + 2  // type
-            + 2  // subType
-            + 2; // version
-
-    /** Минимальный полный размер блока (без bodyBytes). */
-    public static final int MIN_FULL_BYTES =
-            PREIMAGE_HEADER_SIZE + SIG_MARKER_LEN + SIGNATURE_LEN;
-
-    // --- HEADER (PREIMAGE) ---
-    public final int frameCode;        // uint16 (v0=0)
-    public final byte[] prevHash32;    // 32
-    public final int blockSize;        // preimage size (включая frameCode)
-    public final int blockNumber;      // >=0
+    public final int frameCode;
+    public final byte[] prevHash32;
+    public final int blockSize;
+    public final int blockNumber;
    public final long timestamp;
    public final short type;
    public final short subType;
    public final short version;
-
-    // --- BODY (PREIMAGE) ---
    public final byte[] bodyBytes;
-
-    /** Распарсенное тело (создаётся сразу при парсинге блока). */
    public final BodyRecord body;

-    // --- TAIL ---
-    public final int sigMarker;        // uint16 (v0: 0x0100)
-    private final byte[] signature64;  // 64
+    private final Ans104DataItem dataItem;
+    private final byte[] frameBytes;
+    private final byte[] hash32;

-    // --- derived ---
-    private final byte[] hash32;       // 32, computed
-    private final byte[] preimage;     // blockSize bytes
-    private final byte[] fullBytes;    // preimage + sigMarker + signature
-
-    /* ===================================================================== */
-    /* ====================== Конструктор из байт ========================== */
-    /* ===================================================================== */
-
-    public BchBlockEntry(byte[] fullBytes) {
-        Objects.requireNonNull(fullBytes, "fullBytes == null");
-
-        if (fullBytes.length < MIN_FULL_BYTES) {
-            throw new IllegalArgumentException("Block too short: " + fullBytes.length + " < " + MIN_FULL_BYTES);
-        }
-        if (fullBytes.length > MAX_BLOCK_FULL_BYTES) {
-            throw new IllegalArgumentException("Block too large: " + fullBytes.length + " > " + MAX_BLOCK_FULL_BYTES);
+    /** Parse a complete serialized ANS-104 DataItem containing one SHiNE Frame v1. */
+    public BchBlockEntry(byte[] fullDataItemBytes) {
+        Objects.requireNonNull(fullDataItemBytes, "fullDataItemBytes == null");
+        this.dataItem = new Ans104DataItem(fullDataItemBytes);
+        this.frameBytes = dataItem.data();
+        if (frameBytes.length < FRAME_HEADER_SIZE) {
+            throw new IllegalArgumentException("SHiNE Frame v1 too short: " + frameBytes.length);
        }

-        ByteBuffer bb = ByteBuffer.wrap(fullBytes).order(ByteOrder.BIG_ENDIAN);
-
-        // [2] frameCode
+        ByteBuffer bb = ByteBuffer.wrap(frameBytes).order(ByteOrder.BIG_ENDIAN);
        this.frameCode = Short.toUnsignedInt(bb.getShort());
-        if (this.frameCode != FRAME_CODE_V0) {
-            throw new IllegalArgumentException(String.format(
-                    "Bad frameCode: 0x%04X (expected 0x%04X)", this.frameCode, FRAME_CODE_V0
-            ));
+        if (frameCode != FRAME_CODE_V1) {
+            throw new IllegalArgumentException(String.format("Bad SHiNE frameCode: 0x%04X (expected 0x%04X)", frameCode, FRAME_CODE_V1));
        }
-
-        // [32] prevHash32
        this.prevHash32 = new byte[32];
-        bb.get(this.prevHash32);
-
-        // [4] blockSize
+        bb.get(prevHash32);
        this.blockSize = bb.getInt();
-        if (blockSize < PREIMAGE_HEADER_SIZE) {
-            throw new IllegalArgumentException("blockSize too small: " + blockSize + " < " + PREIMAGE_HEADER_SIZE);
+        if (blockSize != frameBytes.length || blockSize < FRAME_HEADER_SIZE) {
+            throw new IllegalArgumentException("SHiNE blockSize mismatch: declared=" + blockSize + " actual=" + frameBytes.length);
        }
-
-        // fullLen must match exactly: blockSize + sigMarker(2) + signature(64)
-        int expectedFullLen = blockSize + SIG_MARKER_LEN + SIGNATURE_LEN;
-        if (expectedFullLen != fullBytes.length) {
-            throw new IllegalArgumentException("blockSize mismatch: blockSize=" + blockSize
-                    + " expectedFullLen=" + expectedFullLen
-                    + " fullLen=" + fullBytes.length);
-        }
-        if (expectedFullLen > MAX_BLOCK_FULL_BYTES) {
-            throw new IllegalArgumentException("Block too large by blockSize: " + expectedFullLen + " > " + MAX_BLOCK_FULL_BYTES);
-        }
-
-        // [4] blockNumber
        this.blockNumber = bb.getInt();
-        if (this.blockNumber < 0) {
-            throw new IllegalArgumentException("blockNumber < 0: " + this.blockNumber);
-        }
-
-        // [8] timestamp
+        if (blockNumber < 0) throw new IllegalArgumentException("blockNumber < 0: " + blockNumber);
        this.timestamp = bb.getLong();
-
-        // запрет “в будущее” больше чем на 1 минуту
        long now = Instant.now().getEpochSecond();
-        if (this.timestamp > now + MAX_FUTURE_SECONDS) {
-            throw new IllegalArgumentException("timestamp is too far in future: ts=" + this.timestamp
-                    + " now=" + now + " maxFutureSec=" + MAX_FUTURE_SECONDS);
+        if (timestamp > now + MAX_FUTURE_SECONDS) {
+            throw new IllegalArgumentException("timestamp is too far in future: ts=" + timestamp + " now=" + now);
        }
-
-        // [2][2][2] type/subType/version
        this.type = bb.getShort();
        this.subType = bb.getShort();
        this.version = bb.getShort();
-
-        // [N] bodyBytes
-        int bodyLen = blockSize - PREIMAGE_HEADER_SIZE;
-        if (bodyLen < 0) {
-            throw new IllegalArgumentException("Invalid body length: " + bodyLen);
-        }
-        this.bodyBytes = new byte[bodyLen];
-        bb.get(this.bodyBytes);
-
-        // TAIL: [2] sigMarker
-        this.sigMarker = Short.toUnsignedInt(bb.getShort());
-        if (this.sigMarker != SIG_MARKER_ED25519) {
-            throw new IllegalArgumentException(String.format(
-                    "Bad sigMarker: 0x%04X (expected 0x%04X)", this.sigMarker, SIG_MARKER_ED25519
-            ));
-        }
-
-        // TAIL: [64] signature64
-        this.signature64 = new byte[SIGNATURE_LEN];
-        bb.get(this.signature64);
-
-        // preimage = первые blockSize байт (включая frameCode)
-        this.preimage = Arrays.copyOfRange(fullBytes, 0, blockSize);
-
-        // hash32 = sha256(preimage)
-        this.hash32 = BchCryptoVerifier.sha256(preimage);
-
-        // parse body по header.type/subType/version + ОБЯЗАТЕЛЬНЫЙ check()
-        this.body = BodyRecordParser.parse(this.type, this.subType, this.version, this.bodyBytes);
-
-        this.fullBytes = Arrays.copyOf(fullBytes, fullBytes.length);
-
-        if (bb.remaining() != 0) {
-            throw new IllegalArgumentException("Unexpected tail bytes, remaining=" + bb.remaining());
-        }
+        this.bodyBytes = new byte[bb.remaining()];
+        bb.get(bodyBytes);
+        this.body = BodyRecordParser.parse(type, subType, version, bodyBytes);
+        this.hash32 = BchCryptoVerifier.sha256(frameBytes);
    }

-    /* ===================================================================== */
-    /* ====================== Конструктор сборки ============================ */
-    /* ===================================================================== */
-
-    public BchBlockEntry(byte[] prevHash32,
-                         int blockNumber,
-                         long timestamp,
-                         short type,
-                         short subType,
-                         short version,
-                         byte[] bodyBytes,
-                         byte[] signature64) {
-
-        Objects.requireNonNull(prevHash32, "prevHash32 == null");
-        Objects.requireNonNull(bodyBytes, "bodyBytes == null");
-        Objects.requireNonNull(signature64, "signature64 == null");
-
-        if (prevHash32.length != 32) throw new IllegalArgumentException("prevHash32 != 32");
-        if (signature64.length != SIGNATURE_LEN) throw new IllegalArgumentException("signature64 != 64");
-
-        if (blockNumber < 0) {
-            throw new IllegalArgumentException("blockNumber < 0: " + blockNumber);
-        }
-
-        // запрет “в будущее” больше чем на 1 минуту
-        long now = Instant.now().getEpochSecond();
-        if (timestamp > now + MAX_FUTURE_SECONDS) {
-            throw new IllegalArgumentException("timestamp is too far in future: ts=" + timestamp
-                    + " now=" + now + " maxFutureSec=" + MAX_FUTURE_SECONDS);
-        }
-
-        this.frameCode = FRAME_CODE_V0;
-        this.prevHash32 = Arrays.copyOf(prevHash32, 32);
-        this.blockNumber = blockNumber;
-        this.timestamp = timestamp;
-        this.type = type;
-        this.subType = subType;
-        this.version = version;
-        this.bodyBytes = Arrays.copyOf(bodyBytes, bodyBytes.length);
-
-        // blockSize = размер preimage (включая frameCode)
-        this.blockSize = PREIMAGE_HEADER_SIZE + this.bodyBytes.length;
-
-        int fullLen = this.blockSize + SIG_MARKER_LEN + SIGNATURE_LEN;
-        if (fullLen > MAX_BLOCK_FULL_BYTES) {
-            throw new IllegalArgumentException("Block too large: " + fullLen + " > " + MAX_BLOCK_FULL_BYTES);
-        }
-
-        // parse body по header + ОБЯЗАТЕЛЬНЫЙ check()
-        this.body = BodyRecordParser.parse(this.type, this.subType, this.version, this.bodyBytes);
-
-        // tail marker фиксирован
-        this.sigMarker = SIG_MARKER_ED25519;
-        this.signature64 = Arrays.copyOf(signature64, SIGNATURE_LEN);
-
-        // build preimage
-        ByteBuffer pre = ByteBuffer.allocate(blockSize).order(ByteOrder.BIG_ENDIAN);
-        pre.putShort((short) (FRAME_CODE_V0 & 0xFFFF));
-        pre.put(this.prevHash32);
-        pre.putInt(this.blockSize);
-        pre.putInt(this.blockNumber);
-        pre.putLong(this.timestamp);
-        pre.putShort(this.type);
-        pre.putShort(this.subType);
-        pre.putShort(this.version);
-        pre.put(this.bodyBytes);
-
-        this.preimage = pre.array();
-        this.hash32 = BchCryptoVerifier.sha256(preimage);
-
-        // build fullBytes: preimage + sigMarker + signature64
-        ByteBuffer full = ByteBuffer.allocate(fullLen).order(ByteOrder.BIG_ENDIAN);
-        full.put(this.preimage);
-        full.putShort((short) (SIG_MARKER_ED25519 & 0xFFFF));
-        full.put(this.signature64);
-        this.fullBytes = full.array();
-    }
-
-    /* ===================================================================== */
-    /* ============================ Getters ================================= */
-    /* ===================================================================== */
-
-    public byte[] getPreimageBytes() {
-        return Arrays.copyOf(preimage, preimage.length);
-    }
-
-    /** Возвращает подпись Ed25519 (64 байта). */
-    public byte[] getSignature64() {
-        return Arrays.copyOf(signature64, SIGNATURE_LEN);
-    }
-
-    /** Возвращает hash32 = SHA-256(preimage). */
-    public byte[] getHash32() {
-        return Arrays.copyOf(hash32, HASH_LEN);
-    }
-
-    /** Возвращает полный блок: preimage + sigMarker + signature. */
-    public byte[] toBytes() {
-        return Arrays.copyOf(fullBytes, fullBytes.length);
-    }
+    public Ans104DataItem getDataItem() { return dataItem; }
+    public byte[] getFrameBytes() { return Arrays.copyOf(frameBytes, frameBytes.length); }
+    /** Kept as an alias for code/docs that called the old field preimage. */
+    public byte[] getPreimageBytes() { return getFrameBytes(); }
+    public byte[] getSignature64() { return dataItem.signature64(); }
+    public byte[] getOwner32() { return dataItem.owner32(); }
+    public byte[] getDataItemId32() { return dataItem.id32(); }
+    public byte[] getHash32() { return Arrays.copyOf(hash32, hash32.length); }
+    /** Full serialized ANS-104 DataItem. */
+    public byte[] toBytes() { return dataItem.rawBytes(); }

    @Override
    public String toString() {
-        String timeIso;
-        try {
-            timeIso = Instant.ofEpochSecond(timestamp).toString();
-        } catch (Exception e) {
-            timeIso = "некорректныйTimestamp";
-        }
-
-        return "BchBlockEntry{"
-                + "FRAME{frameCode=0x" + hex4(frameCode)
-                + "}, HDR{"
-                + "blockSize=" + blockSize
-                + ", blockNumber=" + blockNumber
-                + ", timestamp=" + timestamp + " (" + timeIso + ")"
-                + ", type=" + (type & 0xFFFF)
-                + ", subType=" + (subType & 0xFFFF)
-                + ", version=" + (version & 0xFFFF)
-                + ", prevHash32(hex)=" + toHex(prevHash32)
-                + "}"
-                + ", BODY{len=" + (bodyBytes == null ? -1 : bodyBytes.length) + "}"
-                + ", TAIL{sigMarker=0x" + hex4(sigMarker) + ", signature64(hex)=" + toHex(signature64) + "}"
-                + ", DERIVED{hash32(hex)=" + toHex(hash32) + "}"
-                + "}";
-    }
-
-    private static String hex4(int v) {
-        String s = Integer.toHexString(v & 0xFFFF);
-        while (s.length() < 4) s = "0" + s;
-        return s;
+        return "BchBlockEntry{" +
+                "frameCode=0x" + Integer.toHexString(frameCode) +
+                ", blockNumber=" + blockNumber +
+                ", timestamp=" + timestamp +
+                ", type=" + (type & 0xffff) +
+                ", subType=" + (subType & 0xffff) +
+                ", version=" + (version & 0xffff) +
+                ", bodyLen=" + bodyBytes.length +
+                ", dataItemId=" + toHex(getDataItemId32()) +
+                ", blockHash=" + toHex(hash32) +
+                '}';
    }

    private static String toHex(byte[] bytes) {
-        if (bytes == null) return "null";
-        char[] HEX = "0123456789abcdef".toCharArray();
+        char[] h = "0123456789abcdef".toCharArray();
        char[] out = new char[bytes.length * 2];
        for (int i = 0; i < bytes.length; i++) {
-            int vv = bytes[i] & 0xFF;
-            out[i * 2] = HEX[vv >>> 4];
-            out[i * 2 + 1] = HEX[vv & 0x0F];
+            int v = bytes[i] & 0xff;
+            out[i * 2] = h[v >>> 4]; out[i * 2 + 1] = h[v & 15];
        }
        return new String(out);
    }
-}
+}
@@ -1,42 +1,27 @@
 package blockchain;

-import utils.crypto.Ed25519Util;
-
 import java.security.MessageDigest;
 import java.util.Objects;

-/**
- * Верификатор SHiNE (Frame v0):
- *
- * preimage = первые blockSize байт блока (ВКЛЮЧАЯ frameCode=0x0000),
- *          = всё до TAIL (sigMarker+signature).
- *
- * hash32   = SHA-256(preimage)
- * verify   = Ed25519.verify(hash32, signature64, pubKey32)
- */
+/** Cryptographic checks for SHiNE Frame v1 + surrounding ANS-104 DataItem. */
 public final class BchCryptoVerifier {
-
    private BchCryptoVerifier() {}

    public static byte[] sha256(byte[] data) {
        Objects.requireNonNull(data, "data == null");
-        try {
-            MessageDigest d = MessageDigest.getInstance("SHA-256");
-            return d.digest(data);
-        } catch (Exception e) {
-            throw new IllegalStateException("SHA-256 unavailable", e);
-        }
+        try { return MessageDigest.getInstance("SHA-256").digest(data); }
+        catch (Exception e) { throw new IllegalStateException("SHA-256 unavailable", e); }
    }

+    /**
+     * Verifies that the ANS-104 owner is the current blockchain key and that the
+     * ANS-104 Ed25519 signature is valid. The SHiNE block hash itself remains
+     * SHA-256(Frame v1 bytes) and is intentionally independent of Arweave.
+     */
    public static boolean verifyBlock(BchBlockEntry block, byte[] publicKey32) {
        Objects.requireNonNull(block, "block == null");
        Objects.requireNonNull(publicKey32, "publicKey32 == null");
-
        if (publicKey32.length != 32) throw new IllegalArgumentException("publicKey32 != 32");
-
-        byte[] hash32 = block.getHash32();
-        byte[] sig64 = block.getSignature64();
-
-        return Ed25519Util.verify(hash32, sig64, publicKey32);
+        return block.getDataItem().ownerEquals(publicKey32) && block.getDataItem().verifySignature();
    }
-}
+}
@@ -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",
@@ -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). */
-    public static final short CONNECTION_CLOSE_FRIEND = CONNECTION_FRIEND;
-    /** Alias: удалить из close friend (то же значение, что CONNECTION_UNFRIEND). */
-    public static final short CONNECTION_UNCLOSE_FRIEND = CONNECTION_UNFRIEND;
+    /** Добавить в друзья. */
+    public static final short CONNECTION_FRIEND = 14;
+    /** Удалить из друзей. */
+    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;
 }
@@ -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
@@ -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; }
 }
-
@@ -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());
+    }
+}
@@ -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)) {
-            throw new IllegalArgumentException("TextLineBody supports only POST/EDIT_POST/REPOST, got subType=" + st);
+                && 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("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)) {
-            throw new IllegalArgumentException("TextLineBody supports only POST/EDIT_POST/REPOST");
+                && 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("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) {
@@ -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());
+    }
+}
@@ -1,297 +0,0 @@
-package utils.files;
-
-import java.io.IOException;
-import java.nio.file.*;
-import java.util.Objects;
-
-/**
- * ===============================================================
- *  FileStoreUtil — утилита работы с файлами в папке data/.
- *
- *  Теперь поддерживает:
- *   - основной файл блокчейна:       <blockchainName>.bch
- *   - временный файл блокчейна:      <blockchainName>.tmp_bch
- *   - sidecar-файл проверки записи:  <blockchainName>.write_check
- *   - marker-файл записи:            <blockchainName>.write_pending
- *
- *  Важное:
- *   - validateSimpleFileName() запрещает path traversal.
- *   - atomicReplaceBlockchainFile(): пытается сделать ATOMIC_MOVE (если ФС поддерживает),
- *     иначе делает обычный REPLACE_EXISTING move.
- * ===============================================================
- */
-public final class FileStoreUtil {
-
-    /** Базовая папка для хранения всех файлов (создаётся автоматически). */
-    public static final String DATA_DIR_NAME = "data";
-
-    /** Расширение основного файла блокчейна. */
-    public static final String BLOCKCHAIN_FILE_EXTENSION = ".bch";
-
-    /** Расширение временного файла (старое+новое). */
-    public static final String BLOCKCHAIN_TMP_EXTENSION = ".tmp_bch";
-
-    /** Маркер того, что chain сейчас в процессе полного resync. */
-    public static final String BLOCKCHAIN_RESYNC_MARKER_EXTENSION = ".resync_pending";
-
-    /** Marker того, что обычный AddBlock находится в опасной фазе записи. */
-    public static final String BLOCKCHAIN_WRITE_PENDING_MARKER_EXTENSION = ".write_pending";
-
-    /** Sidecar-файл с blockNumber/blockHash для обычного AddBlock. */
-    public static final String BLOCKCHAIN_WRITE_CHECK_EXTENSION = ".write_check";
-
-    private static final FileStoreUtil INSTANCE = new FileStoreUtil();
-
-    private final Path dataDirPath;
-
-    private FileStoreUtil() {
-        this.dataDirPath = Paths.get(DATA_DIR_NAME);
-        ensureDataDirExists();
-    }
-
-    public static FileStoreUtil getInstance() {
-        return INSTANCE;
-    }
-
-    /* ===================================================================== */
-    /* ======================== Базовые операции =========================== */
-    /* ===================================================================== */
-
-    public void newFile(String fileName, byte[] data) {
-        Objects.requireNonNull(data, "data == null");
-        Path target = resolveSafe(fileName);
-        try {
-            Files.write(target, data,
-                    StandardOpenOption.CREATE,
-                    StandardOpenOption.TRUNCATE_EXISTING,
-                    StandardOpenOption.WRITE);
-        } catch (IOException e) {
-            throw new IllegalStateException("Не удалось записать файл: " + target, e);
-        }
-    }
-
-    public void addDataToFile(String fileName, byte[] data) {
-        Objects.requireNonNull(data, "data == null");
-        Path target = resolveSafe(fileName);
-        try {
-            Files.write(target, data,
-                    StandardOpenOption.CREATE,
-                    StandardOpenOption.WRITE,
-                    StandardOpenOption.APPEND);
-        } catch (IOException e) {
-            throw new IllegalStateException("Не удалось дописать файл: " + target, e);
-        }
-    }
-
-    public byte[] readAllDataFromFile(String fileName) {
-        Path target = resolveSafe(fileName);
-        if (!Files.exists(target)) {
-            throw new IllegalStateException("Файл не найден: " + target);
-        }
-        try {
-            return Files.readAllBytes(target);
-        } catch (IOException e) {
-            throw new IllegalStateException("Не удалось прочитать файл: " + target, e);
-        }
-    }
-
-    public boolean exists(String fileName) {
-        Path target = resolveSafe(fileName);
-        return Files.exists(target);
-    }
-
-    public long size(String fileName) {
-        Path target = resolveSafe(fileName);
-        try {
-            return Files.size(target);
-        } catch (IOException e) {
-            throw new IllegalStateException("Не удалось получить размер файла: " + target, e);
-        }
-    }
-
-    /* ===================================================================== */
-    /* ===================== Блокчейн-файлы по имени ======================= */
-    /* ===================================================================== */
-
-    /** <blockchainName>.bch */
-    public String buildBlockchainFileName(String blockchainName) {
-        validateSimpleFileName(blockchainName);
-        return blockchainName + BLOCKCHAIN_FILE_EXTENSION;
-    }
-
-    /** <blockchainName>.tmp_bch */
-    public String buildBlockchainTmpFileName(String blockchainName) {
-        validateSimpleFileName(blockchainName);
-        return blockchainName + BLOCKCHAIN_TMP_EXTENSION;
-    }
-
-    public Path resolveBlockchainPath(String blockchainName) {
-        return resolveSafe(buildBlockchainFileName(blockchainName));
-    }
-
-    public Path resolveBlockchainTmpPath(String blockchainName) {
-        return resolveSafe(buildBlockchainTmpFileName(blockchainName));
-    }
-
-    public byte[] readBlockchain(String blockchainName) {
-        return readAllDataFromFile(buildBlockchainFileName(blockchainName));
-    }
-
-    public void writeBlockchainTmp(String blockchainName, byte[] data) {
-        newFile(buildBlockchainTmpFileName(blockchainName), data);
-    }
-
-    /** <blockchainName>.write_check */
-    public String buildBlockchainWriteCheckFileName(String blockchainName) {
-        validateSimpleFileName(blockchainName);
-        return blockchainName + BLOCKCHAIN_WRITE_CHECK_EXTENSION;
-    }
-
-    public Path resolveBlockchainWriteCheckPath(String blockchainName) {
-        return resolveSafe(buildBlockchainWriteCheckFileName(blockchainName));
-    }
-
-    public void writeBlockchainWriteCheck(String blockchainName, int blockNumber, String blockHashHex) {
-        StringBuilder sb = new StringBuilder(128);
-        sb.append("blockNumber=").append(blockNumber).append('\n');
-        sb.append("blockHash=").append(blockHashHex == null ? "" : blockHashHex).append('\n');
-        newFile(buildBlockchainWriteCheckFileName(blockchainName), sb.toString().getBytes(java.nio.charset.StandardCharsets.UTF_8));
-    }
-
-    /** <blockchainName>.write_pending */
-    public String buildBlockchainWritePendingMarkerFileName(String blockchainName) {
-        validateSimpleFileName(blockchainName);
-        return blockchainName + BLOCKCHAIN_WRITE_PENDING_MARKER_EXTENSION;
-    }
-
-    public Path resolveBlockchainWritePendingMarkerPath(String blockchainName) {
-        return resolveSafe(buildBlockchainWritePendingMarkerFileName(blockchainName));
-    }
-
-    public void writeBlockchainWritePendingMarker(String blockchainName) {
-        newFile(buildBlockchainWritePendingMarkerFileName(blockchainName), new byte[0]);
-    }
-
-    /** <blockchainName>.resync_pending */
-    public String buildBlockchainResyncMarkerFileName(String blockchainName) {
-        validateSimpleFileName(blockchainName);
-        return blockchainName + BLOCKCHAIN_RESYNC_MARKER_EXTENSION;
-    }
-
-    public Path resolveBlockchainResyncMarkerPath(String blockchainName) {
-        return resolveSafe(buildBlockchainResyncMarkerFileName(blockchainName));
-    }
-
-    public void writeBlockchainResyncMarker(String blockchainName, String markerContent) {
-        byte[] data = markerContent == null ? new byte[0] : markerContent.getBytes(java.nio.charset.StandardCharsets.UTF_8);
-        newFile(buildBlockchainResyncMarkerFileName(blockchainName), data);
-    }
-
-    public void deleteIfExists(Path path) {
-        if (path == null) {
-            return;
-        }
-        try {
-            Files.deleteIfExists(path);
-        } catch (IOException e) {
-            throw new IllegalStateException("Не удалось удалить файл: " + path, e);
-        }
-    }
-
-    public void deleteBlockchainFileIfExists(String blockchainName) {
-        deleteIfExists(resolveBlockchainPath(blockchainName));
-    }
-
-    public void deleteBlockchainTmpFileIfExists(String blockchainName) {
-        deleteIfExists(resolveBlockchainTmpPath(blockchainName));
-    }
-
-    public void deleteBlockchainWriteCheckIfExists(String blockchainName) {
-        deleteIfExists(resolveBlockchainWriteCheckPath(blockchainName));
-    }
-
-    public void deleteBlockchainWritePendingMarkerIfExists(String blockchainName) {
-        deleteIfExists(resolveBlockchainWritePendingMarkerPath(blockchainName));
-    }
-
-    public void deleteBlockchainResyncMarkerIfExists(String blockchainName) {
-        deleteIfExists(resolveBlockchainResyncMarkerPath(blockchainName));
-    }
-
-    public boolean existsBlockchainResyncMarker(String blockchainName) {
-        return exists(buildBlockchainResyncMarkerFileName(blockchainName));
-    }
-
-    /**
-     * Атомарно заменить основной файл блокчейна временным:
-     *   <name>.tmp_bch  ->  <name>.bch
-     *
-     * Стратегия:
-     *  1) Пытаемся Files.move(..., ATOMIC_MOVE, REPLACE_EXISTING)
-     *  2) Если ATOMIC_MOVE не поддерживается — делаем move с REPLACE_EXISTING без атомарности
-     *
-     * Важный нюанс:
-     *  - атомарность гарантируется только в пределах одной файловой системы.
-     */
-    public void atomicReplaceBlockchainFile(String blockchainName) {
-        Path tmp = resolveBlockchainTmpPath(blockchainName);
-        Path main = resolveBlockchainPath(blockchainName);
-
-        if (!Files.exists(tmp)) {
-            throw new IllegalStateException("TMP-файл не найден: " + tmp);
-        }
-
-        try {
-            // 1) Пытаемся атомарный move
-            Files.move(tmp, main,
-                    StandardCopyOption.REPLACE_EXISTING,
-                    StandardCopyOption.ATOMIC_MOVE);
-        } catch (AtomicMoveNotSupportedException e) {
-            // 2) Если ФС не поддерживает атомарный move — делаем обычный replace
-            try {
-                Files.move(tmp, main, StandardCopyOption.REPLACE_EXISTING);
-            } catch (IOException ex) {
-                throw new IllegalStateException("Не удалось заменить файл блокчейна (non-atomic): " + main, ex);
-            }
-        } catch (IOException e) {
-            throw new IllegalStateException("Не удалось заменить файл блокчейна (atomic): " + main, e);
-        }
-    }
-
-    /* ===================================================================== */
-    /* ============================ Helpers ================================= */
-    /* ===================================================================== */
-
-    private void ensureDataDirExists() {
-        try {
-            if (!Files.exists(dataDirPath)) {
-                Files.createDirectories(dataDirPath);
-            }
-        } catch (IOException e) {
-            throw new IllegalStateException("Не удалось создать директорию хранения: " + dataDirPath, e);
-        }
-    }
-
-    private Path resolveSafe(String fileName) {
-        validateSimpleFileName(fileName);
-        return dataDirPath.resolve(fileName);
-    }
-
-    /**
-     * Валидация "простого имени":
-     *  - запрещаем слэши, обратные слэши, ".."
-     *  - запрещаем пустоту
-     *
-     * Важно: сюда у нас попадает и blockchainName (как часть имени файла),
-     * поэтому blockchainName должен быть "простым": без путей.
-     */
-    private void validateSimpleFileName(String fileName) {
-        Objects.requireNonNull(fileName, "fileName == null");
-        if (fileName.isBlank()) {
-            throw new IllegalArgumentException("Имя файла не должно быть пустым");
-        }
-        if (fileName.contains("/") || fileName.contains("\\") || fileName.contains("..")) {
-            throw new IllegalArgumentException("Недопустимое имя файла: " + fileName);
-        }
-    }
-}
@@ -0,0 +1,74 @@
+package blockchain;
+
+import org.junit.jupiter.api.Test;
+import utils.crypto.Ed25519Util;
+
+import java.nio.charset.StandardCharsets;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+final class Ans104DataItemTest {
+    @Test
+    void ed25519RoundTripWithTestAndChannelTags() {
+        byte[] privateKey = Ed25519Util.generatePrivateKeyFromString("shine-ans104-test-key");
+        byte[] owner = Ed25519Util.derivePublicKey(privateKey);
+        byte[] data = "frame-v1-test".getBytes(StandardCharsets.UTF_8);
+        List<Ans104DataItem.Tag> tags = List.of(
+                new Ans104DataItem.Tag("App", "test5590"),
+                new Ans104DataItem.Tag("c", "books")
+        );
+
+        byte[] message = Ans104DataItem.buildSigningMessage(owner, tags, data);
+        byte[] signature = Ed25519Util.sign(message, privateKey);
+        byte[] raw = Ans104DataItem.serializeEd25519(signature, owner, tags, data);
+
+        Ans104DataItem parsed = new Ans104DataItem(raw);
+        assertEquals(2, parsed.signatureType());
+        assertArrayEquals(owner, parsed.owner32());
+        assertArrayEquals(data, parsed.data());
+        assertTrue(parsed.hasTag("App", "test5590"));
+        assertEquals("books", parsed.tagValue("c"));
+        assertTrue(parsed.verifySignature());
+        assertEquals(32, parsed.id32().length);
+    }
+
+    @Test
+    void mutationBreaksSignature() {
+        byte[] privateKey = Ed25519Util.generatePrivateKeyFromString("shine-ans104-mutation-key");
+        byte[] owner = Ed25519Util.derivePublicKey(privateKey);
+        byte[] data = "original".getBytes(StandardCharsets.UTF_8);
+        List<Ans104DataItem.Tag> tags = List.of(new Ans104DataItem.Tag("App", "test5590"));
+        byte[] signature = Ed25519Util.sign(Ans104DataItem.buildSigningMessage(owner, tags, data), privateKey);
+        byte[] raw = Ans104DataItem.serializeEd25519(signature, owner, tags, data);
+        raw[raw.length - 1] ^= 1;
+        assertFalse(new Ans104DataItem(raw).verifySignature());
+    }
+    @Test
+    void signingMessageMatchesArbundlesTurboCompatibilityVector() {
+        byte[] owner = new byte[32];
+        for (int i = 0; i < owner.length; i++) owner[i] = (byte) i;
+        byte[] data = "frame-v1-test".getBytes(StandardCharsets.UTF_8);
+        List<Ans104DataItem.Tag> tags = List.of(
+                new Ans104DataItem.Tag("App", "test5590"),
+                new Ans104DataItem.Tag("c", "books")
+        );
+
+        byte[] actual = Ans104DataItem.buildSigningMessage(owner, tags, data);
+        byte[] expected = hex("7e67d0debce103606d697a1e3785130ca20cb89cd8a06f9a65b98b2d2427eaf411fcf7d482da268e44f3ac25c57c3cb9");
+        assertArrayEquals(expected, actual);
+    }
+
+    private static byte[] hex(String value) {
+        if ((value.length() & 1) != 0) throw new IllegalArgumentException("odd hex length");
+        byte[] out = new byte[value.length() / 2];
+        for (int i = 0; i < out.length; i++) {
+            int hi = Character.digit(value.charAt(i * 2), 16);
+            int lo = Character.digit(value.charAt(i * 2 + 1), 16);
+            if (hi < 0 || lo < 0) throw new IllegalArgumentException("bad hex");
+            out[i] = (byte) ((hi << 4) | lo);
+        }
+        return out;
+    }
+
+}
@@ -59,23 +59,33 @@ 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);
    }

    /** Вернёт строку или пустую строку, если параметр не найден. */
    public String getStringOrEmpty(String name) {
-        String value = properties.getProperty(name);
+        String value = getParam(name);
        return value == null ? "" : value.trim();
    }

-    /** Можно добавить методы для удобства */
+    /** Целочисленный параметр с тем же приоритетом: system property -> env -> properties. */
    public int getInt(String name, int defaultValue) {
-        String v = properties.getProperty(name);
-        return v == null ? defaultValue : Integer.parseInt(v);
+        String v = getParam(name);
+        return v == null || v.isBlank() ? defaultValue : Integer.parseInt(v.trim());
    }

+    /** Boolean-параметр с тем же приоритетом: system property -> env -> properties. */
    public boolean getBoolean(String name, boolean defaultValue) {
-        String v = properties.getProperty(name);
-        return v == null ? defaultValue : Boolean.parseBoolean(v);
+        String v = getParam(name);
+        return v == null || v.isBlank() ? defaultValue : Boolean.parseBoolean(v.trim());
+    }
+
+    private static String toEnvName(String name) {
+        return name
+                .replace('.', '_')
+                .replace('-', '_')
+                .toUpperCase();
    }
 }
@@ -14,6 +14,12 @@ 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:";
+
+    /** Подписанный watermark чтения канала: prefix + login + owner_bch_name + channel_name + time_ms + read_count */
+    public static final String CHANNEL_READ_STATE_PREFIX = "SHiNe/ChannelReadState:";
+
    /** TAG в HeaderBody (genesis). ASCII "SHiNe". */
    public static final String BLOCKCHAIN_HEADER_TAG = "SHiNe";

@@ -31,4 +37,4 @@ public final class ShineSignatureConstants {

    /** Длина публичного ключа Ed25519. */
    public static final int ED25519_PUBLIC_KEY32_LEN = 32;
-}
+}
@@ -1,7 +1,7 @@
 # utils.crypto

 Пакет отвечает за криптографию — подписи и хэши блоков.  
-Используется при создании и проверке целостности `.bch`-блоков.
+Используется при создании и проверке криптографических сущностей SHiNE; пользовательские blockchain-файлы `.bch` больше не используются.

 ---

@@ -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

@@ -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 вЂ” СѓСЃС‚Р°РЅР°РІР»РёРІР°РµС‚ С‚СЂРёРіРіРµСЂС‹, РєРѕС‚РѕСЂС‹Рµ РїРѕРґРґРµСЂР¶РёРІР°СЋС‚ Р±РёР·РЅРµСЃ-Р»РѕРіРёРєСѓ Р‘Р”.
- *
- * РњС‹ СЃРїРµС†РёР°Р»СЊРЅРѕ СЃРґРµР»Р°Р»Рё С‚СЂРёРіРіРµСЂС‹ РјР°РєСЃРёРјР°Р»СЊРЅРѕ "СЃРѕРІРјРµСЃС‚РёРјС‹РјРё":
- *  - РќР•Рў РґРёРЅР°РјРёС‡РµСЃРєРёС… СЃРѕРѕР±С‰РµРЅРёР№ РІ RAISE(...): С‚РѕР»СЊРєРѕ С„РёРєСЃРёСЂРѕРІР°РЅРЅС‹Рµ СЃС‚СЂРѕРєРё.
- *    (РќРµРєРѕС‚РѕСЂС‹Рµ SQLite-СЃР±РѕСЂРєРё / РїСЂРѕСЃРјРѕС‚СЂС‰РёРєРё РїР°РґР°СЋС‚ РЅР° "||" РІРЅСѓС‚СЂРё RAISE.)
- *  - РќР•Рў UPSERT "ON CONFLICT DO UPDATE" вЂ” РІРјРµСЃС‚Рѕ РЅРµРіРѕ:
- *      INSERT OR IGNORE + UPDATE
- *    (РЎС‚Р°СЂС‹Рµ SQLite РЅРµ Р·РЅР°СЋС‚ UPSERT.)
- *
- * =============================================================================
- * РћРџРРЎРђРќРР• РўР РР“Р“Р•Р РћР’
- * =============================================================================
- *
- * [1] trg_blocks_line_integrity_bi  (BEFORE INSERT ON blocks)
- *     РљРѕРЅС‚СЂРѕР»СЊ С†РµР»РѕСЃС‚РЅРѕСЃС‚Рё "Р»РёРЅРёР№" (line_code / prev_line_number / prev_line_hash / this_line_number).
- *
- *     Р—Р°С‡РµРј СЌС‚Рѕ РЅСѓР¶РЅРѕ:
- *       - Р’ РєР°РЅР°Р»Р°С…/РІРµС‚РєР°С…/РґРµР№СЃС‚РІРёСЏС… С‚С‹ С…РѕС‡РµС€СЊ РёРјРµС‚СЊ "Р»РёРЅРµР№РЅСѓСЋ" РїРѕСЃР»РµРґРѕРІР°С‚РµР»СЊРЅРѕСЃС‚СЊ,
- *         РіРґРµ РєР°Р¶РґС‹Р№ СЃР»РµРґСѓСЋС‰РёР№ Р±Р»РѕРє СЏРІРЅРѕ СЃСЃС‹Р»Р°РµС‚СЃСЏ РЅР° РїСЂРµРґС‹РґСѓС‰РёР№ Р±Р»РѕРє Р»РёРЅРёРё
- *         Рё РїРѕРґС‚РІРµСЂР¶РґР°РµС‚, С‡С‚Рѕ СЃСЃС‹Р»РєР° РЅРµ РїРѕРґРјРµРЅРµРЅР°.
- *
- *     РљРѕРіРґР° СЃСЂР°Р±Р°С‚С‹РІР°РµС‚:
- *       - РўРћР›Р¬РљРћ РµСЃР»Рё РїСЂРё РІСЃС‚Р°РІРєРµ РїРµСЂРµРґР°РЅРѕ РҐРћРўРЇ Р‘Р« РћР”РќРћ РёР· line-РїРѕР»РµР№.
- *       - Р•СЃР»Рё line-РїРѕР»СЏ РЅРµ РїРµСЂРµРґР°РЅС‹ вЂ” С‚СЂРёРіРіРµСЂ РІРѕРѕР±С‰Рµ РЅРµ СЂР°Р±РѕС‚Р°РµС‚ (СЌС‚Рѕ РІР°Р¶РЅРѕ).
- *
- *     Р§С‚Рѕ РїСЂРѕРІРµСЂСЏРµС‚:
- *       A) line-РїРѕР»СЏ РґРѕРїСѓСЃРєР°СЋС‚СЃСЏ С‚РѕР»СЊРєРѕ РґР»СЏ msg_type:
- *          0 (TECH), 1 (TEXT), 3 (CONNECTION), 4 (USER_PARAM)
- *       B) Р•СЃР»Рё РїСЂРёС€Р»Рѕ С…РѕС‚СЊ РѕРґРЅРѕ line-РїРѕР»Рµ вЂ” РѕР±СЏР·Р°РЅС‹ РїСЂРёР№С‚Рё Р’РЎР• 4 (РЅРёРєР°РєРёС… "С‡Р°СЃС‚РёС‡РЅС‹С…")
- *       C) prev-Р±Р»РѕРє Р»РёРЅРёРё СЃСѓС‰РµСЃС‚РІСѓРµС‚ РІ С‚РѕР№ Р¶Рµ С†РµРїРѕС‡РєРµ bch_name
- *       D) prev_hash СЃРѕРІРїР°РґР°РµС‚ СЃ block_hash РЅР°Р№РґРµРЅРЅРѕРіРѕ prev-Р±Р»РѕРєР°
- *       E) line_code РєРѕСЂСЂРµРєС‚РЅС‹Р№:
- *          - Р»РёР±Рѕ РїРµСЂРІС‹Р№ С€Р°Рі РїРѕСЃР»Рµ root: prev_line_number == line_code
- *          - Р»РёР±Рѕ prev СѓР¶Рµ РїСЂРёРЅР°РґР»РµР¶РёС‚ СЌС‚РѕР№ Р»РёРЅРёРё: p.line_code == NEW.line_code
- *       F) this_line_number:
- *          - РїРµСЂРІС‹Р№ С€Р°Рі РїРѕСЃР»Рµ root:
- *              TEXT: this_line_number = 0
- *              TECH/CONNECTION/USER_PARAM: this_line_number = 1
- *          - РѕР±С‹С‡РЅС‹Р№ С€Р°Рі:
- *              TEXT: РґРѕРїСѓСЃРєР°РµРј same РёР»Рё +1 (С‡С‚РѕР±С‹ "edit" РјРѕРі РЅРµ РґРІРёРіР°С‚СЊ С€Р°Рі)
- *              TECH/CONNECTION/USER_PARAM: СЃС‚СЂРѕРіРѕ prev.this + 1
- *
- *     РљР°РєРёРµ РѕС€РёР±РєРё РєРёРґР°РµС‚:
- *       - 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)
- *     РџРѕРґРґРµСЂР¶РёРІР°РµС‚ С‚Р°Р±Р»РёС†Сѓ connections_state РєР°Рє "С‚РµРєСѓС‰РµРµ СЃРѕСЃС‚РѕСЏРЅРёРµ" РѕС‚РЅРѕС€РµРЅРёР№:
- *       - FRIEND/CONTACT/FOLLOW  -> РґРѕР±Р°РІРёС‚СЊ/РѕР±РЅРѕРІРёС‚СЊ СЃРѕСЃС‚РѕСЏРЅРёРµ
- *       - UNFRIEND/UNCONTACT/UNFOLLOW -> СѓРґР°Р»РёС‚СЊ СЃРѕРѕС‚РІРµС‚СЃС‚РІСѓСЋС‰РµРµ "РїРѕР·РёС‚РёРІРЅРѕРµ" СЃРѕСЃС‚РѕСЏРЅРёРµ
- *
- * [3] trg_blocks_message_stats_like_ai (AFTER INSERT ON blocks WHEN msg_type=2 AND sub_type=LIKE)
- *     РџРѕРґРґРµСЂР¶РёРІР°РµС‚ likes_count РІ message_stats РґР»СЏ С†РµР»Рё (to_*).
- *
- * [4] trg_blocks_message_stats_reply_ai (AFTER INSERT ON blocks WHEN msg_type=1 AND sub_type=REPLY)
- *     РџРѕРґРґРµСЂР¶РёРІР°РµС‚ replies_count РІ message_stats.
- *
- * [5] trg_blocks_edit_apply_ai (AFTER INSERT ON blocks WHEN msg_type=1 AND sub_type=EDIT)
- *     Р›РѕРіРёРєР° edit:
- *       - РїРѕРјРµС‡Р°РµС‚ РёСЃС…РѕРґРЅС‹Р№ Р±Р»РѕРє edited_by_block_number = NEW.block_number
- *       - СѓРІРµР»РёС‡РёРІР°РµС‚ edits_count РІ message_stats
- */
-public final class DatabaseTriggersInstaller {
-
-    private DatabaseTriggersInstaller() {}
-
-    public static void createAllTriggers(Statement st) throws SQLException {
-        dropTriggersByPrefix(st, "trg_blocks_");
-
-        // РќР° РІСЃСЏРєРёР№ СЃР»СѓС‡Р°Р№ СѓР±РёСЂР°РµРј СЃС‚Р°СЂС‹Рµ "РєСЂРёРІРѕ РЅР°Р·РІР°РЅРЅС‹Рµ" С‚СЂРёРіРіРµСЂС‹,
-        // РµСЃР»Рё РѕРЅРё РєРѕРіРґР°-С‚Рѕ РїРѕРїР°РґР°Р»Рё РІ Р‘Р”.
-        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) РµСЃР»Рё Р·Р°РїРёСЃРё РЅРµС‚ вЂ” СЃРѕР·РґР°С‘Рј
-                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) РµСЃР»Рё Р·Р°РїРёСЃСЊ РµСЃС‚СЊ вЂ” РѕР±РЅРѕРІР»СЏРµРј Р°РєС‚СѓР°Р»СЊРЅС‹Рµ 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*:
-                -- СѓРґР°Р»СЏРµРј СЃРѕРѕС‚РІРµС‚СЃС‚РІСѓСЋС‰РµРµ "РїРѕР·РёС‚РёРІРЅРѕРµ" СЃРѕСЃС‚РѕСЏРЅРёРµ
-                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) РїРѕРјРµС‡Р°РµРј РёСЃС…РѕРґРЅС‹Р№ Р±Р»РѕРє, С‡С‚Рѕ РµРіРѕ "РїРµСЂРµРєСЂС‹Р»" СЌС‚РѕС‚ 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) СЃРѕР·РґР°С‘Рј stats-СЃС‚СЂРѕРєСѓ РµСЃР»Рё РµС‘ РЅРµ Р±С‹Р»Рѕ
-                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));
-    }
-}
@@ -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);
+            }
+        }
+    }
+}
@@ -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;
+    }
+}
@@ -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). */
-    public static final short TEXT_REPOST = 30;
+    /** RATING — target-based отзыв на конкретный блок. */
+    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,
- *        KNOWN_PERSON=60, SHINE_CONFIRMED=70, SHINE_SEEN=74
- * UNSET: UNCLOSE_FRIEND(=UNFRIEND)=11, UNCONTACT=21, UNFOLLOW=31, UNSPOUSE=41, UNPARENT=51, UNCHILD=53, UNSIBLING=55,
- *        UNKNOWN_PERSON=61, SHINE_UNCONFIRMED=71, SHINE_UNSEEN=75
+ * SET:   CLOSE_FRIEND=10, FRIEND=14, CONTACT=20, FOLLOW=30, SPOUSE=40, PARENT=50, CHILD=52, SIBLING=54,
+ *        KNOWN_PERSON(legacy)=60, SHINE_CONFIRMED=70, SHINE_SEEN=74, OFFICIAL_ACCOUNT_CONFIRMED=80
+ * UNSET: UNCLOSE_FRIEND=11, UNFRIEND=15, UNCONTACT=21, UNFOLLOW=31, UNSPOUSE=41, UNPARENT=51, UNCHILD=53, UNSIBLING=55,
+ *        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). */
-    public static final short CONNECTION_CLOSE_FRIEND = CONNECTION_FRIEND;
+    /** Добавить в друзья. */
+    public static final short CONNECTION_FRIEND = 14;

-    /** Alias: удалить из close friend (то же значение, что CONNECTION_UNFRIEND). */
-    public static final short CONNECTION_UNCLOSE_FRIEND = CONNECTION_UNFRIEND;
+    /** Удалить из друзей. */
+    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.
@@ -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;
+    }
+}
@@ -1,798 +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 = 11;
-
-    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();
-            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 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");
-        }
-    }
-
-    /**
-     * 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;
-    }
-}
@@ -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()) {
@@ -0,0 +1,9 @@
+package shine.db.connection;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+
+@FunctionalInterface
+public interface ConnectionFactory {
+    Connection getConnection() throws SQLException;
+}
@@ -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.
+    }
+}
@@ -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;
+    }
+}
@@ -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<>();
@@ -0,0 +1,138 @@
+package shine.db.dao;
+
+import shine.db.DbController;
+
+import java.sql.*;
+import java.util.ArrayList;
+import java.util.List;
+
+/** Persistent discovery/import queue for ANS-104 SHiNE blocks found through Arweave. */
+public final class ArweaveBlockImportDAO {
+    public static final String STATUS_PENDING = "PENDING";
+    public static final String STATUS_REJECTED = "REJECTED";
+
+    public record QueueItem(byte[] dataItemId, String rootTxId, long blockHeight,
+                            byte[] rawDataItem, String status, String lastError,
+                            long firstSeenAtMs, long updatedAtMs) {}
+
+    private static volatile ArweaveBlockImportDAO instance;
+    private final DbController db = DbController.getInstance();
+
+    private ArweaveBlockImportDAO() {}
+
+    public static ArweaveBlockImportDAO getInstance() {
+        if (instance == null) {
+            synchronized (ArweaveBlockImportDAO.class) {
+                if (instance == null) instance = new ArweaveBlockImportDAO();
+            }
+        }
+        return instance;
+    }
+
+    public long getLastBlockHeight() throws SQLException {
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("SELECT last_block_height FROM arweave_block_sync_state WHERE id=1");
+             ResultSet rs = ps.executeQuery()) {
+            return rs.next() ? rs.getLong(1) : 0L;
+        }
+    }
+
+    public void setLastBlockHeight(long height, long nowMs) throws SQLException {
+        String sql = """
+            INSERT INTO arweave_block_sync_state(id,last_block_height,updated_at_ms)
+            VALUES(1,?,?)
+            ON CONFLICT(id) DO UPDATE SET last_block_height=EXCLUDED.last_block_height, updated_at_ms=EXCLUDED.updated_at_ms
+            """;
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setLong(1, Math.max(0L, height));
+            ps.setLong(2, nowMs);
+            ps.executeUpdate();
+        }
+    }
+
+    /** Insert once. Existing IDs (including REJECTED) are deliberately not re-enqueued. */
+    public boolean enqueueIfMissing(byte[] dataItemId, String rootTxId, long blockHeight, byte[] rawDataItem, long nowMs)
+            throws SQLException {
+        String sql = """
+            INSERT INTO arweave_block_import_queue(
+                data_item_id,root_tx_id,block_height,raw_data_item,status,last_error,first_seen_at_ms,updated_at_ms
+            ) VALUES(?,?,?,?,?,'',?,?)
+            ON CONFLICT(data_item_id) DO NOTHING
+            """;
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setBytes(1, dataItemId);
+            ps.setString(2, rootTxId);
+            ps.setLong(3, blockHeight);
+            ps.setBytes(4, rawDataItem);
+            ps.setString(5, STATUS_PENDING);
+            ps.setLong(6, nowMs);
+            ps.setLong(7, nowMs);
+            return ps.executeUpdate() > 0;
+        }
+    }
+
+    public boolean exists(byte[] dataItemId) throws SQLException {
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("SELECT 1 FROM arweave_block_import_queue WHERE data_item_id=? LIMIT 1")) {
+            ps.setBytes(1, dataItemId);
+            try (ResultSet rs = ps.executeQuery()) { return rs.next(); }
+        }
+    }
+
+    public List<QueueItem> listPending(int limit) throws SQLException {
+        int safeLimit = Math.max(1, Math.min(limit, 100_000));
+        String sql = """
+            SELECT data_item_id,root_tx_id,block_height,raw_data_item,status,last_error,first_seen_at_ms,updated_at_ms
+            FROM arweave_block_import_queue
+            WHERE status=?
+            ORDER BY block_height ASC, first_seen_at_ms ASC
+            LIMIT ?
+            """;
+        List<QueueItem> out = new ArrayList<>();
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, STATUS_PENDING);
+            ps.setInt(2, safeLimit);
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) {
+                    out.add(new QueueItem(
+                            rs.getBytes("data_item_id"), rs.getString("root_tx_id"), rs.getLong("block_height"),
+                            rs.getBytes("raw_data_item"), rs.getString("status"), rs.getString("last_error"),
+                            rs.getLong("first_seen_at_ms"), rs.getLong("updated_at_ms")));
+                }
+            }
+        }
+        return out;
+    }
+
+    public void setPendingError(byte[] id, String error, long nowMs) throws SQLException {
+        updateStatus(id, STATUS_PENDING, error, nowMs);
+    }
+
+    public void reject(byte[] id, String error, long nowMs) throws SQLException {
+        updateStatus(id, STATUS_REJECTED, error, nowMs);
+    }
+
+    public void delete(byte[] id) throws SQLException {
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(
+                "DELETE FROM arweave_block_import_queue WHERE data_item_id=?")) {
+            ps.setBytes(1, id);
+            ps.executeUpdate();
+        }
+    }
+
+    private void updateStatus(byte[] id, String status, String error, long nowMs) throws SQLException {
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(
+                "UPDATE arweave_block_import_queue SET status=?,last_error=?,updated_at_ms=? WHERE data_item_id=?")) {
+            ps.setString(1, status);
+            ps.setString(2, trimError(error));
+            ps.setLong(3, nowMs);
+            ps.setBytes(4, id);
+            ps.executeUpdate();
+        }
+    }
+
+    private static String trimError(String s) {
+        String v = s == null ? "" : s.replace('\n',' ').replace('\r',' ').trim();
+        return v.length() <= 500 ? v : v.substring(0,500);
+    }
+}
@@ -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;
@@ -23,13 +23,13 @@ import java.sql.SQLException;
 *  - нам нужен один понятный "блок операции", который можно вызвать из resync-flow;
 *  - 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;
+ *  - пользовательские blockchain-файлы больше не существуют; cleanup полностью DB-only.
+ *    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() {}

@@ -71,7 +71,7 @@ public final class BlockchainResyncCleanupDAO {
     *  - если blockchain_state уже отсутствует, login берём из blockchainName.
     *
     * Отдельно важно:
-     *  - здесь НЕТ удаления .bch/.tmp_bch;
+     *  - filesystem blockchain storage отсутствует;
     *  - здесь НЕТ повторной загрузки цепочки;
     *  - это только атомарная SQL-очистка БД, на которую потом будет опираться resync-flow.
     */
@@ -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 - (
-                    SELECT COUNT(*)
+                likes_count - COALESCE((
+                    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);
@@ -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; }
@@ -2,293 +2,154 @@ 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.*;
 import java.util.ArrayList;
 import java.util.List;

-/**
- * DAO для таблицы blocks (новый формат).
- *
- * Правило:
- * - методы с Connection НЕ закрывают соединение
- * - методы без Connection сами открывают и закрывают соединение
- *
- * Ключ:
- * - (bch_name, block_number) — уникальная пара в рамках общей БД сервера.
- */
+/** DAO for SHiNE Frame v1 blocks. block_bytes contains the complete ANS-104 DataItem. */
 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() { }
-
    public static BlocksDAO getInstance() {
-        if (instance == null) {
-            synchronized (BlocksDAO.class) {
-                if (instance == null) instance = new BlocksDAO();
-            }
-        }
+        if (instance == null) synchronized (BlocksDAO.class) { if (instance == null) instance = new BlocksDAO(); }
        return instance;
    }

-    // -------------------- INSERT --------------------
-
-    /** Вставка с внешним соединением. Соединение НЕ закрывает. */
    public void insert(Connection c, BlockEntry e) throws SQLException {
-        log.info("DBG BlockEntry: type={} sub={} lineCode={} prevLineNumber={} thisLineNumber={} prevLineHashLen={}",
-                e.getMsgType(), e.getMsgSubType(),
-                e.getLineCode(), e.getPrevLineNumber(), e.getThisLineNumber(),
-                e.getPrevLineHash() == null ? null : e.getPrevLineHash().length
-        );
-
        String sql = """
            INSERT INTO blocks (
-                login,
-                bch_name,
-                block_number,
-                msg_type,
-                msg_sub_type,
-                block_bytes,
-                to_login,
-                to_bch_name,
-                to_block_number,
-                to_block_hash,
-                block_hash,
-                block_signature,
-                edited_by_block_number,
-                line_code,
-                prev_line_number,
-                prev_line_hash,
-                this_line_number
-            ) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)
+                login,bch_name,block_number,msg_type,msg_sub_type,block_bytes,
+                to_login,to_bch_name,to_block_number,to_block_hash,
+                block_hash,block_signature,data_item_id,
+                arweave_publish_pending,arweave_published_at_ms,arweave_root_tx_id,
+                edited_by_block_number,line_code,prev_line_number,prev_line_hash,this_line_number
+            ) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)
            """;
-
        try (PreparedStatement ps = c.prepareStatement(sql)) {
            int i = 1;
-
            ps.setString(i++, e.getLogin());
            ps.setString(i++, e.getBchName());
            ps.setInt(i++, e.getBlockNumber());
-
            ps.setInt(i++, e.getMsgType());
            ps.setInt(i++, e.getMsgSubType());
-
            ps.setBytes(i++, e.getBlockBytes());
-
-            if (e.getToLogin() != null) ps.setString(i++, e.getToLogin());
-            else ps.setNull(i++, Types.VARCHAR);
-
-            if (e.getToBchName() != null) ps.setString(i++, e.getToBchName());
-            else ps.setNull(i++, Types.VARCHAR);
-
-            if (e.getToBlockNumber() != null) ps.setInt(i++, e.getToBlockNumber());
-            else ps.setNull(i++, Types.INTEGER);
-
-            if (e.getToBlockHash() != null) ps.setBytes(i++, e.getToBlockHash());
-            else ps.setNull(i++, Types.BLOB);
-
+            setNullableString(ps, i++, e.getToLogin());
+            setNullableString(ps, i++, e.getToBchName());
+            setNullableInt(ps, i++, e.getToBlockNumber());
+            setNullableBytes(ps, i++, e.getToBlockHash());
            ps.setBytes(i++, e.getBlockHash());
            ps.setBytes(i++, e.getBlockSignature());
-
-            if (e.getEditedByBlockNumber() != null) ps.setInt(i++, e.getEditedByBlockNumber());
-            else ps.setNull(i++, Types.INTEGER);
-
-            // NEW: line_code
-            if (e.getLineCode() != null) ps.setInt(i++, e.getLineCode());
-            else ps.setNull(i++, Types.INTEGER);
-
-            if (e.getPrevLineNumber() != null) ps.setInt(i++, e.getPrevLineNumber());
-            else ps.setNull(i++, Types.INTEGER);
-
-            if (e.getPrevLineHash() != null) ps.setBytes(i++, e.getPrevLineHash());
-            else ps.setNull(i++, Types.BLOB);
-
-            if (e.getThisLineNumber() != null) ps.setInt(i++, e.getThisLineNumber());
-            else ps.setNull(i++, Types.INTEGER);
-
+            ps.setBytes(i++, e.getDataItemId());
+            ps.setBoolean(i++, e.isArweavePublishPending());
+            if (e.getArweavePublishedAtMs() == null) ps.setNull(i++, Types.BIGINT); else ps.setLong(i++, e.getArweavePublishedAtMs());
+            setNullableString(ps, i++, e.getArweaveRootTxId());
+            setNullableInt(ps, i++, e.getEditedByBlockNumber());
+            setNullableInt(ps, i++, e.getLineCode());
+            setNullableInt(ps, i++, e.getPrevLineNumber());
+            setNullableBytes(ps, i++, e.getPrevLineHash());
+            setNullableInt(ps, i++, e.getThisLineNumber());
            ps.executeUpdate();
        }
    }

-    /** Вставка без внешнего соединения. Сам открывает/закрывает. */
-    public void insert(BlockEntry e) throws SQLException {
-        try (Connection c = db.getConnection()) {
-            insert(c, e);
+    public void insert(BlockEntry e) throws SQLException { try (Connection c = db.getConnection()) { insert(c, e); } }
+
+    public boolean existsByDataItemId(byte[] dataItemId) throws SQLException {
+        if (dataItemId == null || dataItemId.length != 32) return false;
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("SELECT 1 FROM blocks WHERE data_item_id=? LIMIT 1")) {
+            ps.setBytes(1, dataItemId);
+            try (ResultSet rs = ps.executeQuery()) { return rs.next(); }
        }
    }

-    // -------------------- SELECT: HASH BY NUMBER --------------------
-
-    /** Получить block_hash по (bch_name, block_number). Нужен для линейной проверки. */
-    public byte[] getHashByNumber(Connection c, String bchName, int blockNumber) throws SQLException {
+    public List<BlockEntry> listPendingArweave(int limit) throws SQLException {
+        int safeLimit = Math.max(1, Math.min(limit, 100_000));
        String sql = """
-            SELECT block_hash
+            SELECT login,bch_name,block_number,msg_type,msg_sub_type,block_bytes,
+                   to_login,to_bch_name,to_block_number,to_block_hash,block_hash,block_signature,data_item_id,
+                   arweave_publish_pending,arweave_published_at_ms,arweave_root_tx_id,
+                   edited_by_block_number,line_code,prev_line_number,prev_line_hash,this_line_number
            FROM blocks
-            WHERE bch_name = ? AND block_number = ?
-            LIMIT 1
+            WHERE arweave_publish_pending = TRUE
+            ORDER BY bch_name ASC, block_number ASC
+            LIMIT ?
            """;
-
-        try (PreparedStatement ps = c.prepareStatement(sql)) {
-            ps.setString(1, bchName);
-            ps.setInt(2, blockNumber);
-            try (ResultSet rs = ps.executeQuery()) {
-                if (!rs.next()) return null;
-                return rs.getBytes("block_hash");
-            }
+        List<BlockEntry> out = new ArrayList<>();
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setInt(1, safeLimit);
+            try (ResultSet rs = ps.executeQuery()) { while (rs.next()) out.add(mapRow(rs)); }
        }
+        return out;
    }

-    public byte[] getHashByNumber(String bchName, int blockNumber) throws SQLException {
+    public void markArweavePublished(List<byte[]> dataItemIds, String rootTxId, long publishedAtMs) throws SQLException {
+        if (dataItemIds == null || dataItemIds.isEmpty()) return;
+        String sql = """
+            UPDATE blocks
+            SET arweave_publish_pending=FALSE, arweave_published_at_ms=?, arweave_root_tx_id=?
+            WHERE data_item_id=?
+            """;
        try (Connection c = db.getConnection()) {
-            return getHashByNumber(c, bchName, blockNumber);
+            c.setAutoCommit(false);
+            try (PreparedStatement ps = c.prepareStatement(sql)) {
+                for (byte[] id : dataItemIds) {
+                    ps.setLong(1, publishedAtMs); ps.setString(2, rootTxId); ps.setBytes(3, id); ps.addBatch();
+                }
+                ps.executeBatch(); c.commit();
+            } catch (Exception e) { c.rollback(); throw e; }
+            finally { c.setAutoCommit(true); }
        }
    }

-    // -------------------- SELECT: FULL ENTRY --------------------
+    public byte[] getHashByNumber(Connection c, String bchName, int blockNumber) throws SQLException {
+        try (PreparedStatement ps = c.prepareStatement("SELECT block_hash FROM blocks WHERE bch_name=? AND block_number=? LIMIT 1")) {
+            ps.setString(1,bchName); ps.setInt(2,blockNumber);
+            try (ResultSet rs=ps.executeQuery()) { return rs.next()?rs.getBytes(1):null; }
+        }
+    }
+    public byte[] getHashByNumber(String bchName, int blockNumber) throws SQLException { try(Connection c=db.getConnection()){return getHashByNumber(c,bchName,blockNumber);} }

    public BlockEntry getByNumber(Connection c, String bchName, int blockNumber) throws SQLException {
-        String sql = """
-            SELECT
-                login,
-                bch_name,
-                block_number,
-                msg_type,
-                msg_sub_type,
-                block_bytes,
-                to_login,
-                to_bch_name,
-                to_block_number,
-                to_block_hash,
-                block_hash,
-                block_signature,
-                edited_by_block_number,
-                line_code,
-                prev_line_number,
-                prev_line_hash,
-                this_line_number
-            FROM blocks
-            WHERE bch_name = ? AND block_number = ?
-            LIMIT 1
-            """;
+        String sql = baseSelect()+" WHERE bch_name=? AND block_number=? LIMIT 1";
+        try(PreparedStatement ps=c.prepareStatement(sql)){ ps.setString(1,bchName); ps.setInt(2,blockNumber); try(ResultSet rs=ps.executeQuery()){return rs.next()?mapRow(rs):null;} }
+    }
+    public BlockEntry getByNumber(String bchName,int blockNumber)throws SQLException{try(Connection c=db.getConnection()){return getByNumber(c,bchName,blockNumber);} }

-        try (PreparedStatement ps = c.prepareStatement(sql)) {
-            ps.setString(1, bchName);
-            ps.setInt(2, blockNumber);
-
-            try (ResultSet rs = ps.executeQuery()) {
-                if (!rs.next()) return null;
-                return mapRow(rs);
-            }
-        }
+    public List<BlockEntry> listRangeByNumber(String bchName,int from,int to)throws SQLException{try(Connection c=db.getConnection()){return listRangeByNumber(c,bchName,from,to);} }
+    public List<BlockEntry> listRangeByNumber(Connection c,String bchName,int from,int to)throws SQLException{
+        String sql=baseSelect()+" WHERE bch_name=? AND block_number>=? AND block_number<=? ORDER BY block_number ASC";
+        List<BlockEntry> out=new ArrayList<>();
+        try(PreparedStatement ps=c.prepareStatement(sql)){ps.setString(1,bchName);ps.setInt(2,from);ps.setInt(3,to);try(ResultSet rs=ps.executeQuery()){while(rs.next())out.add(mapRow(rs));}}
+        return out;
    }

-    public BlockEntry getByNumber(String bchName, int blockNumber) throws SQLException {
-        try (Connection c = db.getConnection()) {
-            return getByNumber(c, bchName, blockNumber);
-        }
-    }
-
-    public List<BlockEntry> listRangeByNumber(String bchName, int fromBlockNumberInclusive, int toBlockNumberInclusive) throws SQLException {
-        try (Connection c = db.getConnection()) {
-            return listRangeByNumber(c, bchName, fromBlockNumberInclusive, toBlockNumberInclusive);
-        }
-    }
-
-    public List<BlockEntry> listRangeByNumber(Connection c, String bchName, int fromBlockNumberInclusive, int toBlockNumberInclusive) throws SQLException {
-        String sql = """
-            SELECT
-                login,
-                bch_name,
-                block_number,
-                msg_type,
-                msg_sub_type,
-                block_bytes,
-                to_login,
-                to_bch_name,
-                to_block_number,
-                to_block_hash,
-                block_hash,
-                block_signature,
-                edited_by_block_number,
-                line_code,
-                prev_line_number,
-                prev_line_hash,
-                this_line_number
-            FROM blocks
-            WHERE bch_name = ?
-              AND block_number >= ?
-              AND block_number <= ?
-            ORDER BY block_number ASC
-            """;
-
-        List<BlockEntry> result = new ArrayList<>();
-        try (PreparedStatement ps = c.prepareStatement(sql)) {
-            ps.setString(1, bchName);
-            ps.setInt(2, fromBlockNumberInclusive);
-            ps.setInt(3, toBlockNumberInclusive);
-            try (ResultSet rs = ps.executeQuery()) {
-                while (rs.next()) {
-                    result.add(mapRow(rs));
-                }
-            }
-        }
-        return result;
-    }
-
-    // -------------------- INTERNAL --------------------
-
-    private BlockEntry mapRow(ResultSet rs) throws SQLException {
-        BlockEntry e = new BlockEntry();
-
-        e.setLogin(rs.getString("login"));
-        e.setBchName(rs.getString("bch_name"));
-        e.setBlockNumber(rs.getInt("block_number"));
-
-        e.setMsgType(rs.getInt("msg_type"));
-        e.setMsgSubType(rs.getInt("msg_sub_type"));
-
-        e.setBlockBytes(rs.getBytes("block_bytes"));
-
-        String toLogin = rs.getString("to_login");
-        if (rs.wasNull()) toLogin = null;
-        e.setToLogin(toLogin);
-
-        String toBchName = rs.getString("to_bch_name");
-        if (rs.wasNull()) toBchName = null;
-        e.setToBchName(toBchName);
-
-        Integer toBlockNumber = (Integer) rs.getObject("to_block_number");
-        e.setToBlockNumber(toBlockNumber);
-
-        byte[] toHash = rs.getBytes("to_block_hash");
-        if (rs.wasNull()) toHash = null;
-        e.setToBlockHash(toHash);
-
-        e.setBlockHash(rs.getBytes("block_hash"));
-        e.setBlockSignature(rs.getBytes("block_signature"));
-
-        Integer editedBy = (Integer) rs.getObject("edited_by_block_number");
-        e.setEditedByBlockNumber(editedBy);
-
-        // NEW: line_code
-        Integer lineCode = (Integer) rs.getObject("line_code");
-        e.setLineCode(lineCode);
-
-        Integer prevLn = (Integer) rs.getObject("prev_line_number");
-        e.setPrevLineNumber(prevLn);
-
-        byte[] prevLh = rs.getBytes("prev_line_hash");
-        if (rs.wasNull()) prevLh = null;
-        e.setPrevLineHash(prevLh);
-
-        Integer thisLn = (Integer) rs.getObject("this_line_number");
-        e.setThisLineNumber(thisLn);
+    private static String baseSelect(){return """
+        SELECT login,bch_name,block_number,msg_type,msg_sub_type,block_bytes,
+               to_login,to_bch_name,to_block_number,to_block_hash,block_hash,block_signature,data_item_id,
+               arweave_publish_pending,arweave_published_at_ms,arweave_root_tx_id,
+               edited_by_block_number,line_code,prev_line_number,prev_line_hash,this_line_number
+        FROM blocks
+        """;}

+    private BlockEntry mapRow(ResultSet rs)throws SQLException{
+        BlockEntry e=new BlockEntry();
+        e.setLogin(rs.getString("login")); e.setBchName(rs.getString("bch_name")); e.setBlockNumber(rs.getInt("block_number"));
+        e.setMsgType(rs.getInt("msg_type")); e.setMsgSubType(rs.getInt("msg_sub_type")); e.setBlockBytes(rs.getBytes("block_bytes"));
+        e.setToLogin(rs.getString("to_login")); e.setToBchName(rs.getString("to_bch_name")); e.setToBlockNumber((Integer)rs.getObject("to_block_number")); e.setToBlockHash(rs.getBytes("to_block_hash"));
+        e.setBlockHash(rs.getBytes("block_hash")); e.setBlockSignature(rs.getBytes("block_signature")); e.setDataItemId(rs.getBytes("data_item_id"));
+        e.setArweavePublishPending(rs.getBoolean("arweave_publish_pending")); e.setArweavePublishedAtMs((Long)rs.getObject("arweave_published_at_ms")); e.setArweaveRootTxId(rs.getString("arweave_root_tx_id"));
+        e.setEditedByBlockNumber((Integer)rs.getObject("edited_by_block_number")); e.setLineCode((Integer)rs.getObject("line_code")); e.setPrevLineNumber((Integer)rs.getObject("prev_line_number")); e.setPrevLineHash(rs.getBytes("prev_line_hash")); e.setThisLineNumber((Integer)rs.getObject("this_line_number"));
        return e;
    }
+
+    private static void setNullableString(PreparedStatement ps,int i,String v)throws SQLException{if(v==null)ps.setNull(i,Types.VARCHAR);else ps.setString(i,v);}
+    private static void setNullableInt(PreparedStatement ps,int i,Integer v)throws SQLException{if(v==null)ps.setNull(i,Types.INTEGER);else ps.setInt(i,v);}
+    private static void setNullableBytes(PreparedStatement ps,int i,byte[] v)throws SQLException{if(v==null)ps.setNull(i,Types.BINARY);else ps.setBytes(i,v);}
 }
@@ -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
-                ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                    created_at_ms,
+                    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();
        }
    }
@@ -88,4 +120,15 @@ public final class ChannelNameStateDAO {
            insert(c, entry);
        }
    }
+    public String getSlugByOwnerAndRoot(String ownerBchName, int rootBlockNumber) throws SQLException {
+        String sql = "SELECT slug FROM channel_names_state WHERE owner_bch_name=? AND channel_root_block_number=? LIMIT 1";
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, ownerBchName);
+            ps.setInt(2, rootBlockNumber);
+            try (ResultSet rs = ps.executeQuery()) {
+                return rs.next() ? rs.getString(1) : null;
+            }
+        }
+    }
+
 }
@@ -0,0 +1,298 @@
+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;
+
+/**
+ * Server projection for per-user channel read/unread state.
+ *
+ * Important rules:
+ *  - rows are created only by a signed client SetChannelReadState;
+ *  - channel publications increment unread_count only for rows that already exist;
+ *  - read_count is monotonic and unread_count is reduced by the accepted read delta;
+ *  - unread_count is never part of the client signature and is server-owned.
+ */
+public final class ChannelReadStateDAO {
+    private static volatile ChannelReadStateDAO instance;
+
+    private ChannelReadStateDAO() {}
+
+    public static ChannelReadStateDAO getInstance() {
+        if (instance == null) {
+            synchronized (ChannelReadStateDAO.class) {
+                if (instance == null) instance = new ChannelReadStateDAO();
+            }
+        }
+        return instance;
+    }
+
+    public record ReadState(long readCount, long unreadCount, long readUpdatedAtMs,
+                            String clientKey, String readSignature) {}
+
+    public record UpsertResult(boolean applied, long readCount, long unreadCount) {}
+
+    public ReadState get(Connection c, String viewerLogin, String ownerBchName, String channelName) throws SQLException {
+        String sql = """
+            SELECT read_count, unread_count, read_updated_at_ms, client_key, read_signature
+            FROM channel_read_state
+            WHERE LOWER(viewer_login)=LOWER(?) AND owner_bch_name=? AND channel_name=?
+            LIMIT 1
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, viewerLogin);
+            ps.setString(2, ownerBchName);
+            ps.setString(3, channelName);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (!rs.next()) return null;
+                return new ReadState(
+                        Math.max(0L, rs.getLong("read_count")),
+                        Math.max(0L, rs.getLong("unread_count")),
+                        rs.getLong("read_updated_at_ms"),
+                        rs.getString("client_key"),
+                        rs.getString("read_signature"));
+            }
+        }
+    }
+
+    public long getUnreadCount(Connection c, String viewerLogin, String ownerBchName, String channelName) throws SQLException {
+        ReadState state = get(c, viewerLogin, ownerBchName, channelName);
+        return state == null ? 0L : state.unreadCount();
+    }
+
+    public long sumUnreadCount(Connection c, String viewerLogin) throws SQLException {
+        String sql = """
+            SELECT COALESCE(SUM(crs.unread_count),0)
+            FROM channel_read_state crs
+            WHERE LOWER(crs.viewer_login)=LOWER(?)
+              AND EXISTS (
+                  SELECT 1
+                  FROM channel_names_state cns
+                  JOIN connections_state cs
+                    ON LOWER(cs.login)=LOWER(crs.viewer_login)
+                   AND cs.rel_type=30
+                   AND cs.to_bch_name=cns.owner_bch_name
+                   AND COALESCE(cs.to_block_number,0)=cns.channel_root_block_number
+                   AND cs.to_block_hash=cns.channel_root_block_hash
+                  WHERE cns.owner_bch_name=crs.owner_bch_name
+                    AND cns.slug=crs.channel_name
+                    AND cns.channel_type_code=1
+              )
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, viewerLogin);
+            try (ResultSet rs = ps.executeQuery()) {
+                return rs.next() ? Math.max(0L, rs.getLong(1)) : 0L;
+            }
+        }
+    }
+
+    /**
+     * Validates that the requested public channel exists and that viewer currently follows it.
+     */
+    public boolean hasActiveSubscription(Connection c, String viewerLogin, String ownerBchName, String channelName,
+                                         int followRelType) throws SQLException {
+        String sql = """
+            SELECT 1
+            FROM channel_names_state cns
+            JOIN connections_state cs
+              ON LOWER(cs.login)=LOWER(?)
+             AND cs.rel_type=?
+             AND cs.to_bch_name=cns.owner_bch_name
+             AND COALESCE(cs.to_block_number,0)=cns.channel_root_block_number
+             AND cs.to_block_hash=cns.channel_root_block_hash
+            WHERE cns.owner_bch_name=?
+              AND cns.slug=?
+              AND cns.channel_type_code=1
+            LIMIT 1
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, viewerLogin);
+            ps.setInt(2, followRelType);
+            ps.setString(3, ownerBchName);
+            ps.setString(4, channelName);
+            try (ResultSet rs = ps.executeQuery()) {
+                return rs.next();
+            }
+        }
+    }
+
+    public String resolvePublicChannelNameByRoot(Connection c, String ownerBchName, int rootBlockNumber) throws SQLException {
+        String sql = """
+            SELECT slug
+            FROM channel_names_state
+            WHERE owner_bch_name=? AND channel_root_block_number=? AND channel_type_code=1
+            LIMIT 1
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, ownerBchName);
+            ps.setInt(2, rootBlockNumber);
+            try (ResultSet rs = ps.executeQuery()) {
+                return rs.next() ? rs.getString("slug") : null;
+            }
+        }
+    }
+
+
+    public Integer resolvePublicChannelRootByName(Connection c, String ownerBchName, String channelName) throws SQLException {
+        String sql = """
+            SELECT channel_root_block_number
+            FROM channel_names_state
+            WHERE owner_bch_name=? AND slug=? AND channel_type_code=1
+            LIMIT 1
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, ownerBchName);
+            ps.setString(2, channelName);
+            try (ResultSet rs = ps.executeQuery()) {
+                return rs.next() ? rs.getInt("channel_root_block_number") : null;
+            }
+        }
+    }
+
+    public String resolveOwnerLogin(Connection c, String ownerBchName, String channelName) throws SQLException {
+        String sql = """
+            SELECT owner_login
+            FROM channel_names_state
+            WHERE owner_bch_name=? AND slug=? AND channel_type_code=1
+            LIMIT 1
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, ownerBchName);
+            ps.setString(2, channelName);
+            try (ResultSet rs = ps.executeQuery()) {
+                return rs.next() ? rs.getString("owner_login") : null;
+            }
+        }
+    }
+
+    /**
+     * Inserts the first client baseline with unread=0, or advances an existing read watermark.
+     * Older timestamps and backwards read_count values are ignored.
+     */
+    public UpsertResult upsertSignedReadIfNewer(Connection c,
+                                                String viewerLogin,
+                                                String ownerLogin,
+                                                String ownerBchName,
+                                                String channelName,
+                                                long readCount,
+                                                long readUpdatedAtMs,
+                                                String clientKey,
+                                                String readSignature,
+                                                long nowMs) throws SQLException {
+        String sql = """
+            INSERT INTO channel_read_state (
+                viewer_login, owner_login, owner_bch_name, channel_name,
+                read_count, unread_count,
+                read_updated_at_ms, client_key, read_signature, updated_at_ms
+            ) VALUES (?, ?, ?, ?, ?, 0, ?, ?, ?, ?)
+            ON CONFLICT (viewer_login, owner_bch_name, channel_name)
+            DO UPDATE SET
+                owner_login = EXCLUDED.owner_login,
+                unread_count = GREATEST(
+                    0,
+                    channel_read_state.unread_count -
+                    GREATEST(0, EXCLUDED.read_count - channel_read_state.read_count)
+                ),
+                read_count = GREATEST(channel_read_state.read_count, EXCLUDED.read_count),
+                read_updated_at_ms = EXCLUDED.read_updated_at_ms,
+                client_key = EXCLUDED.client_key,
+                read_signature = EXCLUDED.read_signature,
+                updated_at_ms = EXCLUDED.updated_at_ms
+            WHERE channel_read_state.read_updated_at_ms < EXCLUDED.read_updated_at_ms
+              AND EXCLUDED.read_count >= channel_read_state.read_count
+            RETURNING read_count, unread_count
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, viewerLogin);
+            ps.setString(2, ownerLogin);
+            ps.setString(3, ownerBchName);
+            ps.setString(4, channelName);
+            ps.setLong(5, Math.max(0L, readCount));
+            ps.setLong(6, readUpdatedAtMs);
+            ps.setString(7, clientKey);
+            ps.setString(8, readSignature);
+            ps.setLong(9, nowMs);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (rs.next()) {
+                    return new UpsertResult(true,
+                            Math.max(0L, rs.getLong("read_count")),
+                            Math.max(0L, rs.getLong("unread_count")));
+                }
+            }
+        }
+        ReadState current = get(c, viewerLogin, ownerBchName, channelName);
+        return new UpsertResult(false,
+                current == null ? 0L : current.readCount(),
+                current == null ? 0L : current.unreadCount());
+    }
+
+    /**
+     * Increments existing rows for current subscribers of one public channel.
+     * Missing channel_read_state rows are deliberately NOT created.
+     * Returns affected viewer logins for post-commit counter pushes.
+     */
+    public List<String> incrementUnreadForSubscribers(Connection c,
+                                                      String ownerBchName,
+                                                      String channelName,
+                                                      int followRelType,
+                                                      long nowMs) throws SQLException {
+        String sql = """
+            UPDATE channel_read_state crs
+            SET unread_count = crs.unread_count + 1,
+                updated_at_ms = ?
+            WHERE crs.owner_bch_name = ?
+              AND crs.channel_name = ?
+              AND LOWER(crs.viewer_login) <> LOWER(crs.owner_login)
+              AND EXISTS (
+                  SELECT 1
+                  FROM channel_names_state cns
+                  JOIN connections_state cs
+                    ON LOWER(cs.login)=LOWER(crs.viewer_login)
+                   AND cs.rel_type=?
+                   AND cs.to_bch_name=cns.owner_bch_name
+                   AND COALESCE(cs.to_block_number,0)=cns.channel_root_block_number
+                   AND cs.to_block_hash=cns.channel_root_block_hash
+                  WHERE cns.owner_bch_name=crs.owner_bch_name
+                    AND cns.slug=crs.channel_name
+                    AND cns.channel_type_code=1
+              )
+            RETURNING viewer_login
+            """;
+        List<String> affected = new ArrayList<>();
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setLong(1, nowMs);
+            ps.setString(2, ownerBchName);
+            ps.setString(3, channelName);
+            ps.setInt(4, followRelType);
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) affected.add(rs.getString("viewer_login"));
+            }
+        }
+        return affected;
+    }
+
+    /** Delete the projection row when a channel FOLLOW is explicitly removed. */
+    public boolean deleteForUnfollowTarget(Connection c, String viewerLogin, String ownerBchName,
+                                           int rootBlockNumber) throws SQLException {
+        String sql = """
+            DELETE FROM channel_read_state crs
+            USING channel_names_state cns
+            WHERE LOWER(crs.viewer_login)=LOWER(?)
+              AND crs.owner_bch_name=?
+              AND cns.owner_bch_name=crs.owner_bch_name
+              AND cns.slug=crs.channel_name
+              AND cns.channel_root_block_number=?
+              AND cns.channel_type_code=1
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, viewerLogin);
+            ps.setString(2, ownerBchName);
+            ps.setInt(3, rootBlockNumber);
+            return ps.executeUpdate() > 0;
+        }
+    }
+}
@@ -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
- * - в ответах возвращаем логины в каноническом регистре через JOIN на solana_users
- *
- * ПРИМЕЧАНИЕ:
- * Таблица пользователей тут названа "solana_users". Если у тебя иначе — поменяй в SQL.
+ * - login в запросах может быть в любом регистре;
+ * - в ответах возвращаем логины в каноническом регистре через прямой lookup
+ *   по актуальным PDA-данным и manual fallback.
 */
 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
-              ON u_login.login = cs.to_login COLLATE NOCASE
-            LEFT JOIN solana_users u_bch
-              ON u_bch.blockchain_name = cs.to_bch_name COLLATE NOCASE
-            WHERE cs.login = ? COLLATE NOCASE
+            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 = ?
            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
-              ON u_actor.login = cs.login COLLATE NOCASE
-            LEFT JOIN solana_users u_target
-              ON u_target.login = ? COLLATE NOCASE
+            LEFT JOIN %s
+              ON LOWER(u_actor.login) = LOWER(cs.login)
+            LEFT JOIN %s
+              ON LOWER(u_target.login) = LOWER(?)
            WHERE (
-                    cs.to_login = ? COLLATE NOCASE
-                    OR (u_target.blockchain_name IS NOT NULL AND cs.to_bch_name = u_target.blockchain_name COLLATE NOCASE)
+                    LOWER(cs.to_login) = LOWER(?)
+                    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
-              ON u.login = a.to_login COLLATE NOCASE
-            WHERE a.login = ? COLLATE NOCASE
+            JOIN %s
+              ON LOWER(u.login) = LOWER(a.to_login)
+            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
-                  AND b.to_login = a.login COLLATE NOCASE
+                WHERE LOWER(b.login) = LOWER(a.to_login)
+                  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
@@ -1,19 +1,22 @@
 package shine.db.dao;

-import shine.db.SqliteDbController;
-import shine.db.entities.SolanaUserEntry;
+import shine.db.DbController;
+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 final SqliteDbController db = SqliteDbController.getInstance();
+    private static volatile CurrentUsersDAO instance;
+    private final DbController db = DbController.getInstance();

-    private SolanaUsersDAO() {}
+    private CurrentUsersDAO() {}

-    public static SolanaUsersDAO getInstance() {
+    public static CurrentUsersDAO getInstance() {
        if (instance == null) {
-            synchronized (SolanaUsersDAO.class) {
-                if (instance == null) instance = new SolanaUsersDAO();
+            synchronized (CurrentUsersDAO.class) {
+                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
-            WHERE LOWER(login) = LOWER(?)
+            FROM %s
+            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
-            WHERE LOWER(login) = LOWER(?)
-            """;
+            FROM %s
+            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
-            WHERE LOWER(login) LIKE ?
+            FROM %s
+            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 {
-        SolanaUserEntry e = new SolanaUserEntry();
+    private CurrentUserEntry mapRow(ResultSet rs) throws SQLException {
+        CurrentUserEntry e = new CurrentUserEntry();

        e.setLogin(rs.getString("login"));
        e.setBlockchainName(rs.getString("blockchain_name"));
-        e.setSolanaKey(rs.getString("solana_key"));
-        e.setBlockchainKey(rs.getString("blockchain_key"));
-        e.setClientKey(rs.getString("client_key"));
+        e.setSolanaKey(KeyEncodingUtil.normalizeKeyToBase64_32(rs.getString("solana_key")));
+        e.setBlockchainKey(KeyEncodingUtil.normalizeKeyToBase64_32(rs.getString("blockchain_key")));
+        e.setClientKey(KeyEncodingUtil.normalizeKeyToBase64_32(rs.getString("client_key")));

        return e;
    }
-}
+}
@@ -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();
-            }
-        }
-    }
-
-}
@@ -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) {}
+}
@@ -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) {}
+}
@@ -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;
+    }
+}
@@ -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);
+    }
+}
@@ -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 (
                """);
@@ -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)) {
@@ -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() { }

@@ -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() {}

@@ -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();
-            }
-        }
-    }
-}
@@ -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();
-            }
-        }
-    }
-}
@@ -0,0 +1,829 @@
+package shine.db.dao;
+
+import shine.db.DbController;
+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.ArrayList;
+import java.util.List;
+
+public final class SignedMessagesDAO {
+
+    public enum ApplyStatus {
+        APPLIED,
+        DUPLICATE_OR_OLDER,
+        BLOCKED_BY_MESSAGE_TOMBSTONE,
+        BLOCKED_BY_CONVERSATION_TOMBSTONE;
+
+        public boolean applied() {
+            return this == APPLIED;
+        }
+    }
+
+    private static volatile SignedMessagesDAO instance;
+    private final DbController db = DbController.getInstance();
+
+    private SignedMessagesDAO() {}
+
+    public static SignedMessagesDAO getInstance() {
+        if (instance == null) {
+            synchronized (SignedMessagesDAO.class) {
+                if (instance == null) instance = new SignedMessagesDAO();
+            }
+        }
+        return instance;
+    }
+
+    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 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;
+                }
+            }
+        });
+    }
+
+    public boolean insertPairBothOrNothing(SignedMessageEntry first, SignedMessageEntry second) throws Exception {
+        return withBusyRetry(() -> {
+            try (Connection c = db.getConnection()) {
+                boolean prevAutoCommit = c.getAutoCommit();
+                c.setAutoCommit(false);
+                try {
+                    int insertedFirst = insertStrict(c, first);
+                    int insertedSecond = insertStrict(c, second);
+                    if (insertedFirst == 1 && insertedSecond == 1) {
+                        markMessageReadByReceipt(c, first);
+                        markMessageReadByReceipt(c, second);
+                        DmDialogStateDAO.getInstance().refreshConversationPair(c, first.getFromLogin(), first.getToLogin());
+                        c.commit();
+                        return true;
+                    }
+                    c.rollback();
+                    return false;
+                } catch (SQLException sqlEx) {
+                    try { c.rollback(); } catch (Exception ignored) {}
+                    if (isConstraintViolation(sqlEx)) {
+                        return false;
+                    }
+                    throw sqlEx;
+                } finally {
+                    c.setAutoCommit(prevAutoCommit);
+                }
+            }
+        });
+    }
+
+    public ApplyStatus upsertContentPair(SignedMessageEntry incoming, SignedMessageEntry outgoing) throws Exception {
+        return withBusyRetry(() -> {
+            try (Connection c = db.getConnection()) {
+                boolean prevAutoCommit = c.getAutoCommit();
+                c.setAutoCommit(false);
+                try {
+                    if (isBlockedByConversationDelete(c, incoming.getFromLogin(), incoming.getToLogin(), incoming.getTimeMs())) {
+                        c.rollback();
+                        return ApplyStatus.BLOCKED_BY_CONVERSATION_TOMBSTONE;
+                    }
+                    if (hasMessageDeleteTombstone(c, incoming.getBaseKey())) {
+                        c.rollback();
+                        return ApplyStatus.BLOCKED_BY_MESSAGE_TOMBSTONE;
+                    }
+
+                    RevisionMarker currentMarker = getCurrentContentMarker(c, incoming.getBaseKey());
+                    RevisionMarker nextMarker = RevisionMarker.of(incoming);
+                    if (currentMarker != null && compareMarkers(nextMarker, currentMarker) <= 0) {
+                        c.rollback();
+                        return ApplyStatus.DUPLICATE_OR_OLDER;
+                    }
+
+                    upsertMessage(c, incoming);
+                    upsertMessage(c, outgoing);
+                    markMessageReadByReceipt(c, incoming);
+                    markMessageReadByReceipt(c, outgoing);
+                    resetDeliveryRows(c, incoming.getMessageKey());
+                    resetDeliveryRows(c, outgoing.getMessageKey());
+                    DmDialogStateDAO.getInstance().refreshConversationPair(c, incoming.getFromLogin(), incoming.getToLogin());
+
+                    c.commit();
+                    return ApplyStatus.APPLIED;
+                } catch (Exception ex) {
+                    try { c.rollback(); } catch (Exception ignored) {}
+                    throw ex;
+                } finally {
+                    c.setAutoCommit(prevAutoCommit);
+                }
+            }
+        });
+    }
+
+    public ApplyStatus upsertIncomingCopy(SignedMessageEntry incoming) throws Exception {
+        return withBusyRetry(() -> {
+            try (Connection c = db.getConnection()) {
+                boolean prevAutoCommit = c.getAutoCommit();
+                c.setAutoCommit(false);
+                try {
+                    if (isBlockedByConversationDelete(c, incoming.getFromLogin(), incoming.getToLogin(), incoming.getTimeMs())) {
+                        c.rollback();
+                        return ApplyStatus.BLOCKED_BY_CONVERSATION_TOMBSTONE;
+                    }
+                    if (hasMessageDeleteTombstone(c, incoming.getBaseKey())) {
+                        c.rollback();
+                        return ApplyStatus.BLOCKED_BY_MESSAGE_TOMBSTONE;
+                    }
+
+                    RevisionMarker currentMarker = getRevisionMarkerByMessageKey(c, incoming.getMessageKey());
+                    RevisionMarker nextMarker = RevisionMarker.of(incoming);
+                    if (currentMarker != null && compareMarkers(nextMarker, currentMarker) <= 0) {
+                        c.rollback();
+                        return ApplyStatus.DUPLICATE_OR_OLDER;
+                    }
+
+                    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) {
+                    try { c.rollback(); } catch (Exception ignored) {}
+                    throw ex;
+                } finally {
+                    c.setAutoCommit(prevAutoCommit);
+                }
+            }
+        });
+    }
+
+    public ApplyStatus applyDeleteMessage(SignedMessageEntry tombstone) throws Exception {
+        return withBusyRetry(() -> {
+            try (Connection c = db.getConnection()) {
+                boolean prevAutoCommit = c.getAutoCommit();
+                c.setAutoCommit(false);
+                try {
+                    if (isBlockedByConversationDelete(c, tombstone.getFromLogin(), tombstone.getToLogin(), tombstone.getTimeMs())) {
+                        c.rollback();
+                        return ApplyStatus.BLOCKED_BY_CONVERSATION_TOMBSTONE;
+                    }
+                    if (hasMessageDeleteTombstone(c, tombstone.getBaseKey())) {
+                        c.rollback();
+                        return ApplyStatus.DUPLICATE_OR_OLDER;
+                    }
+
+                    deleteMessageContentAndReceipts(c, tombstone.getBaseKey());
+                    upsertMessage(c, tombstone);
+                    resetDeliveryRows(c, tombstone.getMessageKey());
+                    DmDialogStateDAO.getInstance().refreshConversationPair(c, tombstone.getFromLogin(), tombstone.getToLogin());
+
+                    c.commit();
+                    return ApplyStatus.APPLIED;
+                } catch (Exception ex) {
+                    try { c.rollback(); } catch (Exception ignored) {}
+                    throw ex;
+                } finally {
+                    c.setAutoCommit(prevAutoCommit);
+                }
+            }
+        });
+    }
+
+    public ApplyStatus applyDeleteConversation(SignedMessageEntry tombstone) throws Exception {
+        return withBusyRetry(() -> {
+            try (Connection c = db.getConnection()) {
+                boolean prevAutoCommit = c.getAutoCommit();
+                c.setAutoCommit(false);
+                try {
+                    Long currentBoundary = getLatestConversationDeleteBoundary(c, tombstone.getFromLogin(), tombstone.getToLogin());
+                    if (currentBoundary != null && tombstone.getTimeMs() <= currentBoundary) {
+                        c.rollback();
+                        return ApplyStatus.DUPLICATE_OR_OLDER;
+                    }
+
+                    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;
+                } catch (Exception ex) {
+                    try { c.rollback(); } catch (Exception ignored) {}
+                    throw ex;
+                } finally {
+                    c.setAutoCommit(prevAutoCommit);
+                }
+            }
+        });
+    }
+
+    public SignedMessageEntry getByMessageKey(String messageKey) throws Exception {
+        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 message_key = ?
+                """.formatted(messagesTable());
+            try (PreparedStatement ps = c.prepareStatement(sql)) {
+                ps.setString(1, messageKey);
+                try (ResultSet rs = ps.executeQuery()) {
+                    if (!rs.next()) return null;
+                    return mapRow(rs);
+                }
+            }
+        }
+    }
+
+    public SignedMessageEntry getLatestConversationDelete(String fromLogin, String toLogin) throws Exception {
+        try (Connection c = db.getConnection()) {
+            return getLatestConversationDelete(c, fromLogin, toLogin);
+        }
+    }
+
+    public void ensureDeliveryRow(String messageKey, String sessionId, long nowMs) throws Exception {
+        ensureDeliveryRows(messageKey, List.of(sessionId), nowMs);
+    }
+
+    public void ensureDeliveryRows(String messageKey, List<String> sessionIds, long nowMs) throws Exception {
+        if (sessionIds == null || sessionIds.isEmpty()) return;
+        withBusyRetry(() -> {
+            try (Connection c = db.getConnection()) {
+                String sql = """
+                    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) {
+                        if (sessionId == null || sessionId.isBlank()) continue;
+                        ps.setString(1, messageKey);
+                        ps.setString(2, sessionId);
+                        ps.setLong(3, nowMs);
+                        ps.addBatch();
+                    }
+                    ps.executeBatch();
+                }
+                return null;
+            }
+        });
+    }
+
+    public void markDelivered(String messageKey, String sessionId, long deliveredAtMs) throws Exception {
+        withBusyRetry(() -> {
+            try (Connection c = db.getConnection()) {
+                String sql = """
+                    INSERT INTO signed_message_session_delivery (
+                        message_key, session_id, delivered, delivered_at_ms, created_at_ms
+                    ) VALUES (?, ?, 1, ?, ?)
+                    ON CONFLICT(message_key, session_id) DO UPDATE SET
+                        delivered = 1,
+                        delivered_at_ms = CASE
+                            WHEN signed_message_session_delivery.delivered_at_ms IS NULL THEN excluded.delivered_at_ms
+                            WHEN signed_message_session_delivery.delivered_at_ms > excluded.delivered_at_ms THEN excluded.delivered_at_ms
+                            ELSE signed_message_session_delivery.delivered_at_ms
+                        END
+                    """;
+                try (PreparedStatement ps = c.prepareStatement(sql)) {
+                    ps.setString(1, messageKey);
+                    ps.setString(2, sessionId);
+                    ps.setLong(3, deliveredAtMs);
+                    ps.setLong(4, deliveredAtMs);
+                    ps.executeUpdate();
+                }
+                return null;
+            }
+        });
+    }
+
+    public List<SignedMessageEntry> listPendingForSession(String login, String sessionId) throws Exception {
+        return withBusyRetry(() -> {
+            try (Connection c = db.getConnection()) {
+                String fillSql = """
+                    INSERT INTO signed_message_session_delivery (
+                        message_key, session_id, delivered, delivered_at_ms, created_at_ms
+                    )
+                    SELECT m.message_key, ?, 0, NULL, ?
+                    FROM %s m
+                    WHERE (
+                        (m.message_type IN (1, 3) AND LOWER(m.to_login) = LOWER(?))
+                        OR (m.message_type IN (2, 4) AND LOWER(m.from_login) = LOWER(?))
+                        OR (m.message_type IN (5, 6, 7, 8)
+                            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);
+                    ps.setLong(2, now);
+                    ps.setString(3, login);
+                    ps.setString(4, login);
+                    ps.setString(5, login);
+                    ps.setString(6, login);
+                    ps.executeUpdate();
+                }
+
+                String sql = """
+                    SELECT
+                        m.message_key, m.base_key, m.target_login, m.from_login, m.to_login,
+                        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 %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<SignedMessageEntry> out = new ArrayList<>();
+                try (PreparedStatement ps = c.prepareStatement(sql)) {
+                    ps.setString(1, sessionId);
+                    try (ResultSet rs = ps.executeQuery()) {
+                        while (rs.next()) out.add(mapRow(rs));
+                    }
+                }
+                return out;
+            }
+        });
+    }
+
+    public List<SignedMessageEntry> listConversationPage(
+            String login,
+            String peerLogin,
+            long beforeTimeMs,
+            String beforeMessageKey,
+            int limit
+    ) throws Exception {
+        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(?)
+                  AND message_type IN (1, 2)
+                  AND (
+                        (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                     OR (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                  )
+                  AND (
+                        ? <= 0
+                     OR time_ms < ?
+                     OR (time_ms = ? AND (? = '' OR message_key < ?))
+                  )
+                ORDER BY time_ms DESC, message_key DESC
+                LIMIT ?
+                """.formatted(messagesTable());
+            List<SignedMessageEntry> out = new ArrayList<>();
+            try (PreparedStatement ps = c.prepareStatement(sql)) {
+                ps.setString(1, login);
+                ps.setString(2, login);
+                ps.setString(3, peerLogin);
+                ps.setString(4, peerLogin);
+                ps.setString(5, login);
+                ps.setLong(6, beforeTimeMs);
+                ps.setLong(7, beforeTimeMs);
+                ps.setLong(8, beforeTimeMs);
+                ps.setString(9, beforeMessageKey == null ? "" : beforeMessageKey);
+                ps.setString(10, beforeMessageKey == null ? "" : beforeMessageKey);
+                ps.setInt(11, limit);
+                try (ResultSet rs = ps.executeQuery()) {
+                    while (rs.next()) out.add(mapRow(rs));
+                }
+            }
+            return out;
+        }
+    }
+
+    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 %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 (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+            ON CONFLICT(message_key) DO UPDATE SET
+                base_key = excluded.base_key,
+                target_login = excluded.target_login,
+                from_login = excluded.from_login,
+                to_login = excluded.to_login,
+                time_ms = excluded.time_ms,
+                nonce = excluded.nonce,
+                message_type = excluded.message_type,
+                revision_time_ms = excluded.revision_time_ms,
+                reencrypted_at_ms = excluded.reencrypted_at_ms,
+                raw_block = excluded.raw_block,
+                created_at_ms = excluded.created_at_ms,
+                source_api = excluded.source_api,
+                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(%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, SignedMessageEntry entry) throws SQLException {
+        if (entry == null) return;
+        int messageType = entry.getMessageType();
+        if (messageType != 3 && messageType != 4) return;
+        String receiptRefBaseKey = String.valueOf(entry.getReceiptRefBaseKey() == null ? "" : entry.getReceiptRefBaseKey()).trim();
+        if (receiptRefBaseKey.isEmpty()) return;
+        long readAtMs = entry.getTimeMs();
+        if (readAtMs <= 0) return;
+        try (PreparedStatement ps = c.prepareStatement("""
+            UPDATE %s
+            SET read_at_ms = CASE
+                WHEN read_at_ms IS NULL OR read_at_ms <= 0 THEN ?
+                WHEN read_at_ms > ? THEN ?
+                ELSE read_at_ms
+            END
+            WHERE base_key = ?
+              AND message_type IN (1, 2)
+            """.formatted(messagesTable()))) {
+            ps.setLong(1, readAtMs);
+            ps.setLong(2, readAtMs);
+            ps.setLong(3, readAtMs);
+            ps.setString(4, receiptRefBaseKey);
+            ps.executeUpdate();
+        }
+    }
+
+    private RevisionMarker getRevisionMarkerByMessageKey(Connection c, String messageKey) throws SQLException {
+        String sql = """
+            SELECT revision_time_ms, reencrypted_at_ms
+            FROM %s
+            WHERE message_key = ?
+            LIMIT 1
+            """.formatted(messagesTable());
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, messageKey);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (!rs.next()) return null;
+                return new RevisionMarker(rs.getLong(1), rs.getLong(2));
+            }
+        }
+    }
+
+    private RevisionMarker getCurrentContentMarker(Connection c, String baseKey) throws SQLException {
+        String sql = """
+            SELECT revision_time_ms, reencrypted_at_ms
+            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()) {
+                if (!rs.next()) return null;
+                return new RevisionMarker(rs.getLong(1), rs.getLong(2));
+            }
+        }
+    }
+
+    private boolean hasMessageDeleteTombstone(Connection c, String baseKey) throws SQLException {
+        String sql = """
+            SELECT 1
+            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()) {
+                return rs.next();
+            }
+        }
+    }
+
+    private boolean isBlockedByConversationDelete(Connection c, String fromLogin, String toLogin, long timeMs) throws SQLException {
+        Long boundary = getLatestConversationDeleteBoundary(c, fromLogin, toLogin);
+        return boundary != null && timeMs < boundary;
+    }
+
+    private Long getLatestConversationDeleteBoundary(Connection c, String fromLogin, String toLogin) throws SQLException {
+        String sql = """
+            SELECT MAX(time_ms)
+            FROM %s
+            WHERE message_type IN (7, 8)
+              AND (
+                    (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                 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);
+            ps.setString(3, toLogin);
+            ps.setString(4, fromLogin);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (!rs.next()) return null;
+                long value = rs.getLong(1);
+                return rs.wasNull() ? null : value;
+            }
+        }
+    }
+
+    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, read_at_ms
+            FROM %s
+            WHERE message_type IN (7, 8)
+              AND (
+                    (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                 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);
+            ps.setString(3, toLogin);
+            ps.setString(4, fromLogin);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (!rs.next()) return null;
+                return mapRow(rs);
+            }
+        }
+    }
+
+    private void deleteMessageContentAndReceipts(Connection c, String baseKey) throws SQLException {
+        deleteDeliveryRowsByMessageSelection(c, """
+            SELECT message_key
+            FROM %s
+            WHERE (base_key = ? AND message_type IN (1, 2))
+               OR (receipt_ref_base_key = ? AND message_type IN (3, 4))
+            """.formatted(messagesTable()), baseKey, baseKey);
+
+        try (PreparedStatement ps = c.prepareStatement("""
+            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();
+        }
+    }
+
+    private void deleteConversationHistoryBefore(Connection c, String fromLogin, String toLogin, long boundaryTimeMs) throws SQLException {
+        deleteDeliveryRowsByMessageSelection(c, """
+            SELECT message_key
+            FROM %s
+            WHERE time_ms < ?
+              AND (
+                    (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                 OR (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+              )
+            """.formatted(messagesTable()), boundaryTimeMs, fromLogin, toLogin, toLogin, fromLogin);
+
+        try (PreparedStatement ps = c.prepareStatement("""
+            DELETE FROM %s
+            WHERE time_ms < ?
+              AND (
+                    (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+                 OR (LOWER(from_login) = LOWER(?) AND LOWER(to_login) = LOWER(?))
+              )
+            """.formatted(messagesTable()))) {
+            ps.setLong(1, boundaryTimeMs);
+            ps.setString(2, fromLogin);
+            ps.setString(3, toLogin);
+            ps.setString(4, toLogin);
+            ps.setString(5, fromLogin);
+            ps.executeUpdate();
+        }
+    }
+
+    private void deleteDeliveryRowsByMessageSelection(Connection c, String messageKeySelectSql, Object... bindValues) throws SQLException {
+        String sql = "DELETE FROM signed_message_session_delivery WHERE message_key IN (" + messageKeySelectSql + ")";
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            bindObjects(ps, bindValues);
+            ps.executeUpdate();
+        }
+    }
+
+    private void resetDeliveryRows(Connection c, String messageKey) throws SQLException {
+        try (PreparedStatement ps = c.prepareStatement("""
+            UPDATE signed_message_session_delivery
+            SET delivered = 0, delivered_at_ms = NULL
+            WHERE message_key = ?
+            """)) {
+            ps.setString(1, messageKey);
+            ps.executeUpdate();
+        }
+    }
+
+    private int insertStrict(Connection c, SignedMessageEntry e) throws SQLException {
+        String sql = """
+            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, SignedMessageEntry e) throws SQLException {
+        ps.setString(1, e.getMessageKey());
+        ps.setString(2, e.getBaseKey());
+        ps.setString(3, e.getTargetLogin());
+        ps.setString(4, e.getFromLogin());
+        ps.setString(5, e.getToLogin());
+        ps.setLong(6, e.getTimeMs());
+        ps.setLong(7, e.getNonce());
+        ps.setInt(8, e.getMessageType());
+        ps.setLong(9, e.getRevisionTimeMs());
+        ps.setLong(10, e.getReencryptedAtMs());
+        ps.setBytes(11, e.getRawBlock());
+        ps.setLong(12, e.getCreatedAtMs());
+        ps.setString(13, e.getSourceApi());
+        ps.setString(14, e.getOriginSessionId());
+        ps.setString(15, e.getReceiptRefBaseKey());
+        if (e.getReceiptRefType() == null) ps.setObject(16, null);
+        else ps.setInt(16, e.getReceiptRefType());
+        if (e.getReadAtMs() == null) ps.setObject(17, null);
+        else ps.setLong(17, e.getReadAtMs());
+    }
+
+    private void bindObjects(PreparedStatement ps, Object... bindValues) throws SQLException {
+        for (int i = 0; i < bindValues.length; i++) {
+            Object value = bindValues[i];
+            int param = i + 1;
+            if (value instanceof String s) {
+                ps.setString(param, s);
+            } else if (value instanceof Long l) {
+                ps.setLong(param, l);
+            } else if (value instanceof Integer n) {
+                ps.setInt(param, n);
+            } else {
+                ps.setObject(param, value);
+            }
+        }
+    }
+
+    private boolean isConstraintViolation(SQLException ex) {
+        String msg = String.valueOf(ex.getMessage()).toLowerCase();
+        return msg.contains("constraint") || msg.contains("unique") || msg.contains("primary key");
+    }
+
+    private <T> T withBusyRetry(SqlWork<T> work) throws Exception {
+        return work.run();
+    }
+
+    private int compareMarkers(RevisionMarker left, RevisionMarker right) {
+        int revisionCompare = Long.compare(left.revisionTimeMs, right.revisionTimeMs);
+        if (revisionCompare != 0) return revisionCompare;
+        return Long.compare(left.reencryptedAtMs, right.reencryptedAtMs);
+    }
+
+    private String messagesTable() {
+        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"));
+        e.setFromLogin(rs.getString("from_login"));
+        e.setToLogin(rs.getString("to_login"));
+        e.setTimeMs(rs.getLong("time_ms"));
+        e.setNonce(rs.getLong("nonce"));
+        e.setMessageType(rs.getInt("message_type"));
+        e.setRevisionTimeMs(rs.getLong("revision_time_ms"));
+        e.setReencryptedAtMs(rs.getLong("reencrypted_at_ms"));
+        e.setRawBlock(rs.getBytes("raw_block"));
+        e.setCreatedAtMs(rs.getLong("created_at_ms"));
+        e.setSourceApi(rs.getString("source_api"));
+        e.setOriginSessionId(rs.getString("origin_session_id"));
+        e.setReceiptRefBaseKey(rs.getString("receipt_ref_base_key"));
+        int maybeRefType = rs.getInt("receipt_ref_type");
+        e.setReceiptRefType(rs.wasNull() ? null : maybeRefType);
+        long maybeReadAt = rs.getLong("read_at_ms");
+        e.setReadAtMs(rs.wasNull() ? null : maybeReadAt);
+        return e;
+    }
+
+    private record RevisionMarker(long revisionTimeMs, long reencryptedAtMs) {
+        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;
+    }
+}
@@ -1,622 +0,0 @@
-package shine.db.dao;
-
-import shine.db.SqliteDbController;
-import shine.db.entities.SignedMessageV2Entry;
-
-import java.sql.Connection;
-import java.sql.PreparedStatement;
-import java.sql.ResultSet;
-import java.sql.SQLException;
-import java.util.ArrayList;
-import java.util.List;
-
-public final class SignedMessagesV2DAO {
-    public enum ApplyStatus {
-        APPLIED,
-        DUPLICATE_OR_OLDER,
-        BLOCKED_BY_MESSAGE_TOMBSTONE,
-        BLOCKED_BY_CONVERSATION_TOMBSTONE;
-
-        public boolean applied() {
-            return this == APPLIED;
-        }
-    }
-
-    private static volatile SignedMessagesV2DAO instance;
-    private final SqliteDbController db = SqliteDbController.getInstance();
-
-    private SignedMessagesV2DAO() {}
-
-    public static SignedMessagesV2DAO getInstance() {
-        if (instance == null) {
-            synchronized (SignedMessagesV2DAO.class) {
-                if (instance == null) instance = new SignedMessagesV2DAO();
-            }
-        }
-        return instance;
-    }
-
-    public ApplyStatus insertIfAbsent(SignedMessageV2Entry e) throws Exception {
-        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 (
-                    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
-                ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
-                """;
-            try (PreparedStatement ps = c.prepareStatement(sql)) {
-                bindSignedMessage(ps, e);
-                return ps.executeUpdate() > 0 ? ApplyStatus.APPLIED : ApplyStatus.DUPLICATE_OR_OLDER;
-            }
-        }
-    }
-
-    public boolean insertPairBothOrNothing(SignedMessageV2Entry first, SignedMessageV2Entry second) throws Exception {
-        try (Connection c = db.getConnection()) {
-            boolean prevAutoCommit = c.getAutoCommit();
-            c.setAutoCommit(false);
-            try {
-                int insertedFirst = insertStrict(c, first);
-                int insertedSecond = insertStrict(c, second);
-                if (insertedFirst == 1 && insertedSecond == 1) {
-                    c.commit();
-                    return true;
-                }
-                c.rollback();
-                return false;
-            } catch (SQLException sqlEx) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                if (isConstraintViolation(sqlEx)) {
-                    return false;
-                }
-                throw sqlEx;
-            } finally {
-                c.setAutoCommit(prevAutoCommit);
-            }
-        }
-    }
-
-    public ApplyStatus upsertContentPair(SignedMessageV2Entry incoming, SignedMessageV2Entry outgoing) throws Exception {
-        try (Connection c = db.getConnection()) {
-            boolean prevAutoCommit = c.getAutoCommit();
-            c.setAutoCommit(false);
-            try {
-                if (isBlockedByConversationDelete(c, incoming.getFromLogin(), incoming.getToLogin(), incoming.getTimeMs())) {
-                    c.rollback();
-                    return ApplyStatus.BLOCKED_BY_CONVERSATION_TOMBSTONE;
-                }
-                if (hasMessageDeleteTombstone(c, incoming.getBaseKey())) {
-                    c.rollback();
-                    return ApplyStatus.BLOCKED_BY_MESSAGE_TOMBSTONE;
-                }
-
-                RevisionMarker currentMarker = getCurrentContentMarker(c, incoming.getBaseKey());
-                RevisionMarker nextMarker = RevisionMarker.of(incoming);
-                if (currentMarker != null && compareMarkers(nextMarker, currentMarker) <= 0) {
-                    c.rollback();
-                    return ApplyStatus.DUPLICATE_OR_OLDER;
-                }
-
-                upsertMessage(c, incoming);
-                upsertMessage(c, outgoing);
-                resetDeliveryRows(c, incoming.getMessageKey());
-                resetDeliveryRows(c, outgoing.getMessageKey());
-
-                c.commit();
-                return ApplyStatus.APPLIED;
-            } catch (Exception ex) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw ex;
-            } finally {
-                c.setAutoCommit(prevAutoCommit);
-            }
-        }
-    }
-
-    public ApplyStatus upsertIncomingCopy(SignedMessageV2Entry incoming) throws Exception {
-        try (Connection c = db.getConnection()) {
-            boolean prevAutoCommit = c.getAutoCommit();
-            c.setAutoCommit(false);
-            try {
-                if (isBlockedByConversationDelete(c, incoming.getFromLogin(), incoming.getToLogin(), incoming.getTimeMs())) {
-                    c.rollback();
-                    return ApplyStatus.BLOCKED_BY_CONVERSATION_TOMBSTONE;
-                }
-                if (hasMessageDeleteTombstone(c, incoming.getBaseKey())) {
-                    c.rollback();
-                    return ApplyStatus.BLOCKED_BY_MESSAGE_TOMBSTONE;
-                }
-
-                RevisionMarker currentMarker = getRevisionMarkerByMessageKey(c, incoming.getMessageKey());
-                RevisionMarker nextMarker = RevisionMarker.of(incoming);
-                if (currentMarker != null && compareMarkers(nextMarker, currentMarker) <= 0) {
-                    c.rollback();
-                    return ApplyStatus.DUPLICATE_OR_OLDER;
-                }
-
-                upsertMessage(c, incoming);
-                resetDeliveryRows(c, incoming.getMessageKey());
-                c.commit();
-                return ApplyStatus.APPLIED;
-            } catch (Exception ex) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw ex;
-            } finally {
-                c.setAutoCommit(prevAutoCommit);
-            }
-        }
-    }
-
-    public ApplyStatus applyDeleteMessage(SignedMessageV2Entry tombstone) throws Exception {
-        try (Connection c = db.getConnection()) {
-            boolean prevAutoCommit = c.getAutoCommit();
-            c.setAutoCommit(false);
-            try {
-                if (isBlockedByConversationDelete(c, tombstone.getFromLogin(), tombstone.getToLogin(), tombstone.getTimeMs())) {
-                    c.rollback();
-                    return ApplyStatus.BLOCKED_BY_CONVERSATION_TOMBSTONE;
-                }
-                if (hasMessageDeleteTombstone(c, tombstone.getBaseKey())) {
-                    c.rollback();
-                    return ApplyStatus.DUPLICATE_OR_OLDER;
-                }
-
-                deleteMessageContentAndReceipts(c, tombstone.getBaseKey());
-                upsertMessage(c, tombstone);
-                resetDeliveryRows(c, tombstone.getMessageKey());
-
-                c.commit();
-                return ApplyStatus.APPLIED;
-            } catch (Exception ex) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw ex;
-            } finally {
-                c.setAutoCommit(prevAutoCommit);
-            }
-        }
-    }
-
-    public ApplyStatus applyDeleteConversation(SignedMessageV2Entry tombstone) throws Exception {
-        try (Connection c = db.getConnection()) {
-            boolean prevAutoCommit = c.getAutoCommit();
-            c.setAutoCommit(false);
-            try {
-                Long currentBoundary = getLatestConversationDeleteBoundary(c, tombstone.getFromLogin(), tombstone.getToLogin());
-                if (currentBoundary != null && tombstone.getTimeMs() <= currentBoundary) {
-                    c.rollback();
-                    return ApplyStatus.DUPLICATE_OR_OLDER;
-                }
-
-                deleteConversationHistoryBefore(c, tombstone.getFromLogin(), tombstone.getToLogin(), tombstone.getTimeMs());
-                upsertMessage(c, tombstone);
-                resetDeliveryRows(c, tombstone.getMessageKey());
-
-                c.commit();
-                return ApplyStatus.APPLIED;
-            } catch (Exception ex) {
-                try { c.rollback(); } catch (Exception ignored) {}
-                throw ex;
-            } finally {
-                c.setAutoCommit(prevAutoCommit);
-            }
-        }
-    }
-
-    public SignedMessageV2Entry getByMessageKey(String messageKey) throws Exception {
-        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
-                FROM signed_messages_v2
-                WHERE message_key = ?
-                """;
-            try (PreparedStatement ps = c.prepareStatement(sql)) {
-                ps.setString(1, messageKey);
-                try (ResultSet rs = ps.executeQuery()) {
-                    if (!rs.next()) return null;
-                    return mapRow(rs);
-                }
-            }
-        }
-    }
-
-    public SignedMessageV2Entry getLatestConversationDelete(String fromLogin, String toLogin) throws Exception {
-        try (Connection c = db.getConnection()) {
-            return getLatestConversationDelete(c, fromLogin, toLogin);
-        }
-    }
-
-    public void ensureDeliveryRow(String messageKey, String sessionId, long nowMs) throws Exception {
-        try (Connection c = db.getConnection()) {
-            String sql = """
-                INSERT OR IGNORE INTO signed_message_session_delivery (
-                    message_key, session_id, delivered, delivered_at_ms, created_at_ms
-                ) VALUES (?, ?, 0, NULL, ?)
-                """;
-            try (PreparedStatement ps = c.prepareStatement(sql)) {
-                ps.setString(1, messageKey);
-                ps.setString(2, sessionId);
-                ps.setLong(3, nowMs);
-                ps.executeUpdate();
-            }
-        }
-    }
-
-    public void markDelivered(String messageKey, String sessionId, long deliveredAtMs) throws Exception {
-        try (Connection c = db.getConnection()) {
-            String insertSql = """
-                INSERT OR IGNORE INTO signed_message_session_delivery (
-                    message_key, session_id, delivered, delivered_at_ms, created_at_ms
-                ) VALUES (?, ?, 0, NULL, ?)
-                """;
-            try (PreparedStatement ps = c.prepareStatement(insertSql)) {
-                ps.setString(1, messageKey);
-                ps.setString(2, sessionId);
-                ps.setLong(3, deliveredAtMs);
-                ps.executeUpdate();
-            }
-
-            String updateSql = """
-                UPDATE signed_message_session_delivery
-                SET delivered = 1, delivered_at_ms = ?
-                WHERE message_key = ? AND session_id = ?
-                """;
-            try (PreparedStatement ps = c.prepareStatement(updateSql)) {
-                ps.setLong(1, deliveredAtMs);
-                ps.setString(2, messageKey);
-                ps.setString(3, sessionId);
-                ps.executeUpdate();
-            }
-        }
-    }
-
-    public List<SignedMessageV2Entry> listPendingForSession(String login, String sessionId) throws Exception {
-        try (Connection c = db.getConnection()) {
-            String fillSql = """
-                INSERT OR IGNORE 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
-                WHERE (
-                    (m.message_type IN (1, 3) AND m.to_login = ? COLLATE NOCASE)
-                    OR (m.message_type IN (2, 4) AND m.from_login = ? COLLATE NOCASE)
-                    OR (m.message_type IN (5, 6, 7, 8)
-                        AND (m.from_login = ? COLLATE NOCASE OR m.to_login = ? COLLATE NOCASE))
-                )
-                """;
-            long now = System.currentTimeMillis();
-            try (PreparedStatement ps = c.prepareStatement(fillSql)) {
-                ps.setString(1, sessionId);
-                ps.setLong(2, now);
-                ps.setString(3, login);
-                ps.setString(4, login);
-                ps.setString(5, login);
-                ps.setString(6, login);
-                ps.executeUpdate();
-            }
-
-            String sql = """
-                SELECT
-                    m.message_key, m.base_key, m.target_login, m.from_login, m.to_login,
-                    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
-                FROM signed_messages_v2 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
-                """;
-            List<SignedMessageV2Entry> out = new ArrayList<>();
-            try (PreparedStatement ps = c.prepareStatement(sql)) {
-                ps.setString(1, sessionId);
-                try (ResultSet rs = ps.executeQuery()) {
-                    while (rs.next()) out.add(mapRow(rs));
-                }
-            }
-            return out;
-        }
-    }
-
-    private void upsertMessage(Connection c, SignedMessageV2Entry e) throws SQLException {
-        String sql = """
-            INSERT INTO signed_messages_v2 (
-                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
-            ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
-            ON CONFLICT(message_key) DO UPDATE SET
-                base_key = excluded.base_key,
-                target_login = excluded.target_login,
-                from_login = excluded.from_login,
-                to_login = excluded.to_login,
-                time_ms = excluded.time_ms,
-                nonce = excluded.nonce,
-                message_type = excluded.message_type,
-                revision_time_ms = excluded.revision_time_ms,
-                reencrypted_at_ms = excluded.reencrypted_at_ms,
-                raw_block = excluded.raw_block,
-                created_at_ms = excluded.created_at_ms,
-                source_api = excluded.source_api,
-                origin_session_id = excluded.origin_session_id,
-                receipt_ref_base_key = excluded.receipt_ref_base_key,
-                receipt_ref_type = excluded.receipt_ref_type
-            """;
-        try (PreparedStatement ps = c.prepareStatement(sql)) {
-            bindSignedMessage(ps, e);
-            ps.executeUpdate();
-        }
-    }
-
-    private RevisionMarker getRevisionMarkerByMessageKey(Connection c, String messageKey) throws SQLException {
-        String sql = """
-            SELECT revision_time_ms, reencrypted_at_ms
-            FROM signed_messages_v2
-            WHERE message_key = ?
-            LIMIT 1
-            """;
-        try (PreparedStatement ps = c.prepareStatement(sql)) {
-            ps.setString(1, messageKey);
-            try (ResultSet rs = ps.executeQuery()) {
-                if (!rs.next()) return null;
-                return new RevisionMarker(rs.getLong(1), rs.getLong(2));
-            }
-        }
-    }
-
-    private RevisionMarker getCurrentContentMarker(Connection c, String baseKey) throws SQLException {
-        String sql = """
-            SELECT revision_time_ms, reencrypted_at_ms
-            FROM signed_messages_v2
-            WHERE base_key = ?
-              AND message_type IN (1, 2)
-            ORDER BY revision_time_ms DESC, reencrypted_at_ms DESC
-            LIMIT 1
-            """;
-        try (PreparedStatement ps = c.prepareStatement(sql)) {
-            ps.setString(1, baseKey);
-            try (ResultSet rs = ps.executeQuery()) {
-                if (!rs.next()) return null;
-                return new RevisionMarker(rs.getLong(1), rs.getLong(2));
-            }
-        }
-    }
-
-    private boolean hasMessageDeleteTombstone(Connection c, String baseKey) throws SQLException {
-        String sql = """
-            SELECT 1
-            FROM signed_messages_v2
-            WHERE base_key = ?
-              AND message_type IN (5, 6)
-            LIMIT 1
-            """;
-        try (PreparedStatement ps = c.prepareStatement(sql)) {
-            ps.setString(1, baseKey);
-            try (ResultSet rs = ps.executeQuery()) {
-                return rs.next();
-            }
-        }
-    }
-
-    private boolean isBlockedByConversationDelete(Connection c, String fromLogin, String toLogin, long timeMs) throws SQLException {
-        Long boundary = getLatestConversationDeleteBoundary(c, fromLogin, toLogin);
-        return boundary != null && timeMs < boundary;
-    }
-
-    private Long getLatestConversationDeleteBoundary(Connection c, String fromLogin, String toLogin) throws SQLException {
-        String sql = """
-            SELECT MAX(time_ms)
-            FROM signed_messages_v2
-            WHERE message_type IN (7, 8)
-              AND (
-                    (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
-                 OR (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
-              )
-            """;
-        try (PreparedStatement ps = c.prepareStatement(sql)) {
-            ps.setString(1, fromLogin);
-            ps.setString(2, toLogin);
-            ps.setString(3, toLogin);
-            ps.setString(4, fromLogin);
-            try (ResultSet rs = ps.executeQuery()) {
-                if (!rs.next()) return null;
-                long value = rs.getLong(1);
-                return rs.wasNull() ? null : value;
-            }
-        }
-    }
-
-    private SignedMessageV2Entry 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
-            FROM signed_messages_v2
-            WHERE message_type IN (7, 8)
-              AND (
-                    (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
-                 OR (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
-              )
-            ORDER BY time_ms DESC
-            LIMIT 1
-            """;
-        try (PreparedStatement ps = c.prepareStatement(sql)) {
-            ps.setString(1, fromLogin);
-            ps.setString(2, toLogin);
-            ps.setString(3, toLogin);
-            ps.setString(4, fromLogin);
-            try (ResultSet rs = ps.executeQuery()) {
-                if (!rs.next()) return null;
-                return mapRow(rs);
-            }
-        }
-    }
-
-    private void deleteMessageContentAndReceipts(Connection c, String baseKey) throws SQLException {
-        deleteDeliveryRowsByMessageSelection(c, """
-            SELECT message_key
-            FROM signed_messages_v2
-            WHERE (base_key = ? AND message_type IN (1, 2))
-               OR (receipt_ref_base_key = ? AND message_type IN (3, 4))
-            """, baseKey, baseKey);
-
-        try (PreparedStatement ps = c.prepareStatement("""
-            DELETE FROM signed_messages_v2
-            WHERE (base_key = ? AND message_type IN (1, 2))
-               OR (receipt_ref_base_key = ? AND message_type IN (3, 4))
-            """)) {
-            ps.setString(1, baseKey);
-            ps.setString(2, baseKey);
-            ps.executeUpdate();
-        }
-    }
-
-    private void deleteConversationHistoryBefore(Connection c, String fromLogin, String toLogin, long boundaryTimeMs) throws SQLException {
-        deleteDeliveryRowsByMessageSelection(c, """
-            SELECT message_key
-            FROM signed_messages_v2
-            WHERE time_ms < ?
-              AND (
-                    (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
-                 OR (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
-              )
-            """, boundaryTimeMs, fromLogin, toLogin, toLogin, fromLogin);
-
-        try (PreparedStatement ps = c.prepareStatement("""
-            DELETE FROM signed_messages_v2
-            WHERE time_ms < ?
-              AND (
-                    (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
-                 OR (from_login = ? COLLATE NOCASE AND to_login = ? COLLATE NOCASE)
-              )
-            """)) {
-            ps.setLong(1, boundaryTimeMs);
-            ps.setString(2, fromLogin);
-            ps.setString(3, toLogin);
-            ps.setString(4, toLogin);
-            ps.setString(5, fromLogin);
-            ps.executeUpdate();
-        }
-    }
-
-    private void deleteDeliveryRowsByMessageSelection(Connection c, String messageKeySelectSql, Object... bindValues) throws SQLException {
-        String sql = "DELETE FROM signed_message_session_delivery WHERE message_key IN (" + messageKeySelectSql + ")";
-        try (PreparedStatement ps = c.prepareStatement(sql)) {
-            bindObjects(ps, bindValues);
-            ps.executeUpdate();
-        }
-    }
-
-    private void resetDeliveryRows(Connection c, String messageKey) throws SQLException {
-        try (PreparedStatement ps = c.prepareStatement("""
-            UPDATE signed_message_session_delivery
-            SET delivered = 0, delivered_at_ms = NULL
-            WHERE message_key = ?
-            """)) {
-            ps.setString(1, messageKey);
-            ps.executeUpdate();
-        }
-    }
-
-    private int insertStrict(Connection c, SignedMessageV2Entry e) throws SQLException {
-        String sql = """
-            INSERT INTO signed_messages_v2 (
-                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
-            ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
-            """;
-        try (PreparedStatement ps = c.prepareStatement(sql)) {
-            bindSignedMessage(ps, e);
-            return ps.executeUpdate();
-        }
-    }
-
-    private void bindSignedMessage(PreparedStatement ps, SignedMessageV2Entry e) throws SQLException {
-        ps.setString(1, e.getMessageKey());
-        ps.setString(2, e.getBaseKey());
-        ps.setString(3, e.getTargetLogin());
-        ps.setString(4, e.getFromLogin());
-        ps.setString(5, e.getToLogin());
-        ps.setLong(6, e.getTimeMs());
-        ps.setLong(7, e.getNonce());
-        ps.setInt(8, e.getMessageType());
-        ps.setLong(9, e.getRevisionTimeMs());
-        ps.setLong(10, e.getReencryptedAtMs());
-        ps.setBytes(11, e.getRawBlock());
-        ps.setLong(12, e.getCreatedAtMs());
-        ps.setString(13, e.getSourceApi());
-        ps.setString(14, e.getOriginSessionId());
-        ps.setString(15, e.getReceiptRefBaseKey());
-        if (e.getReceiptRefType() == null) ps.setObject(16, null);
-        else ps.setInt(16, e.getReceiptRefType());
-    }
-
-    private void bindObjects(PreparedStatement ps, Object... bindValues) throws SQLException {
-        for (int i = 0; i < bindValues.length; i++) {
-            Object value = bindValues[i];
-            int param = i + 1;
-            if (value instanceof String s) {
-                ps.setString(param, s);
-            } else if (value instanceof Long l) {
-                ps.setLong(param, l);
-            } else if (value instanceof Integer n) {
-                ps.setInt(param, n);
-            } else {
-                ps.setObject(param, value);
-            }
-        }
-    }
-
-    private boolean isConstraintViolation(SQLException ex) {
-        String msg = String.valueOf(ex.getMessage()).toLowerCase();
-        return msg.contains("constraint") || msg.contains("unique") || msg.contains("primary key");
-    }
-
-    private int compareMarkers(RevisionMarker left, RevisionMarker right) {
-        int revisionCompare = Long.compare(left.revisionTimeMs, right.revisionTimeMs);
-        if (revisionCompare != 0) return revisionCompare;
-        return Long.compare(left.reencryptedAtMs, right.reencryptedAtMs);
-    }
-
-    private SignedMessageV2Entry mapRow(ResultSet rs) throws Exception {
-        SignedMessageV2Entry e = new SignedMessageV2Entry();
-        e.setMessageKey(rs.getString("message_key"));
-        e.setBaseKey(rs.getString("base_key"));
-        e.setTargetLogin(rs.getString("target_login"));
-        e.setFromLogin(rs.getString("from_login"));
-        e.setToLogin(rs.getString("to_login"));
-        e.setTimeMs(rs.getLong("time_ms"));
-        e.setNonce(rs.getLong("nonce"));
-        e.setMessageType(rs.getInt("message_type"));
-        e.setRevisionTimeMs(rs.getLong("revision_time_ms"));
-        e.setReencryptedAtMs(rs.getLong("reencrypted_at_ms"));
-        e.setRawBlock(rs.getBytes("raw_block"));
-        e.setCreatedAtMs(rs.getLong("created_at_ms"));
-        e.setSourceApi(rs.getString("source_api"));
-        e.setOriginSessionId(rs.getString("origin_session_id"));
-        e.setReceiptRefBaseKey(rs.getString("receipt_ref_base_key"));
-        int maybeRefType = rs.getInt("receipt_ref_type");
-        e.setReceiptRefType(rs.wasNull() ? null : maybeRefType);
-        return e;
-    }
-
-    private record RevisionMarker(long revisionTimeMs, long reencryptedAtMs) {
-        private static RevisionMarker of(SignedMessageV2Entry entry) {
-            return new RevisionMarker(entry.getRevisionTimeMs(), entry.getReencryptedAtMs());
-        }
-    }
-}
@@ -0,0 +1,89 @@
+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;
+import java.util.Base64;
+
+/**
+ * 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);
+            }
+        }
+    }
+
+    /** Resolve a current user by the 32-byte Ed25519 blockchain key used as ANS-104 owner. */
+    public SolanaUserPdaCurrentEntry getByBlockchainKey(byte[] owner32) throws SQLException {
+        if (owner32 == null || owner32.length != 32) return null;
+        String wanted = Base64.getEncoder().encodeToString(owner32);
+        String sql = """
+            SELECT login, blockchain_name, blockchain_key, paid_limit_bytes
+            FROM solana_user_pda_current
+            """;
+        try (Connection c = db.getConnection(); PreparedStatement ps = c.prepareStatement(sql); ResultSet rs = ps.executeQuery()) {
+            while (rs.next()) {
+                SolanaUserPdaCurrentEntry e = mapRow(rs);
+                if (wanted.equals(e.getBlockchainKey())) return e;
+            }
+        }
+        return null;
+    }
+
+    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;
+    }
+}
@@ -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()) {
@@ -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() {}

--- a/Show More
+++ b/Show More