Добавить деплой без clean/тестов и доработки PWA/сессии в UI

shine-UI/js/services/message-store.js

@@ -48,3 +48,12 @@ export async function listStoredMessages() {
     req.onerror = () => reject(req.error || new Error('IndexedDB getAll failed'));
   }));
 }
+
+export async function clearStoredMessages() {
+  await new Promise((resolve, reject) => {
+    const request = indexedDB.deleteDatabase(DB_NAME);
+    request.onsuccess = () => resolve();
+    request.onerror = () => reject(request.error || new Error('IndexedDB delete failed'));
+    request.onblocked = () => reject(new Error('IndexedDB delete blocked'));
+  });
+}

shine-UI/js/services/pwa-install-service.js

@@ -0,0 +1,66 @@
+let initialized = false;
+let deferredInstallPrompt = null;
+const listeners = new Set();
+
+function notifyAvailability() {
+  const canInstall = Boolean(deferredInstallPrompt);
+  listeners.forEach((listener) => {
+    try {
+      listener(canInstall);
+    } catch {
+      // ignore listener errors
+    }
+  });
+}
+
+export function initPwaInstallPromptHandling() {
+  if (initialized) return;
+  initialized = true;
+
+  window.addEventListener('beforeinstallprompt', (event) => {
+    event.preventDefault();
+    deferredInstallPrompt = event;
+    notifyAvailability();
+  });
+
+  window.addEventListener('appinstalled', () => {
+    deferredInstallPrompt = null;
+    notifyAvailability();
+  });
+}
+
+export function canInstallPwa() {
+  return Boolean(deferredInstallPrompt);
+}
+
+export function isStandalonePwaMode() {
+  return (
+    window.matchMedia?.('(display-mode: standalone)')?.matches ||
+    window.navigator?.standalone === true
+  );
+}
+
+export async function promptPwaInstall() {
+  if (!deferredInstallPrompt) {
+    return { supported: false, outcome: '' };
+  }
+
+  const promptEvent = deferredInstallPrompt;
+  deferredInstallPrompt = null;
+  notifyAvailability();
+
+  await promptEvent.prompt();
+  const choice = await promptEvent.userChoice;
+  return {
+    supported: true,
+    outcome: String(choice?.outcome || ''),
+  };
+}
+
+export function onPwaInstallAvailabilityChange(handler) {
+  if (typeof handler !== 'function') return () => {};
+  listeners.add(handler);
+  return () => {
+    listeners.delete(handler);
+  };
+}