feat: add automation, reminders, notifications, msg search, session export, image analysis, host exec, PWA, Docker, E2E, CI/CD

- Automation: rules CRUD (in-memory store + API)
- Reminders: CRUD (in-memory store + API)
- Notifications: push interface for future push server
- Message search: API endpoint with DB-backed query
- Session export: /sessions/:id/export → Markdown
- Image analysis: API stub for multimodal LLM
- Host exec: API stub for Docker sandbox
- PWA: manifest.json + service worker
- Docker: Dockerfile + docker-compose.yml
- E2E: Playwright test scaffold
- CI/CD: GitHub Actions workflow (go test + tsc)

frontend/web/index.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <link rel="icon" type="image/png" href="/images/cyrene-avatar.png" />
+    <link rel="manifest" href="/manifest.json" />
     <title>Cyrene — 昔涟</title>
   </head>
   <body class="bg-gray-950 text-gray-100">

frontend/web/public/manifest.json

@@ -0,0 +1,12 @@
+{
+  "name": "Cyrene",
+  "short_name": "Cyrene",
+  "description": "LLM-powered AI companion platform",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#242424",
+  "theme_color": "#3482FF",
+  "icons": [
+    { "src": "/images/cyrene-avatar.png", "sizes": "512x512", "type": "image/png" }
+  ]
+}

frontend/web/public/sw.js

@@ -0,0 +1,6 @@
+// Cyrene PWA Service Worker
+const CACHE = 'cyrene-v2'
+const URLS = ['/', '/index.html', '/images/cyrene-avatar.png']
+
+self.addEventListener('install', e => e.waitUntil(caches.open(CACHE).then(c => c.addAll(URLS))))
+self.addEventListener('fetch', e => e.respondWith(caches.match(e.request).then(r => r || fetch(e.request))))

frontend/web/src/main.tsx

@@ -5,6 +5,11 @@ import App from './App'
 import './index.css'
 import './store/themeStore' // Initialize theme (light mode default, follows system)
 
+// Register PWA service worker
+if ('serviceWorker' in navigator) {
+  navigator.serviceWorker.register('/sw.js')
+}
+
 createRoot(document.getElementById('root')!).render(
   <StrictMode>
     <BrowserRouter>