feat: real-time alerts via WebSocket push notifications

- Add ws WebSocket server (port 3001) with JWT auth and user-socket mapping
- Add WebSocket client with exponential backoff reconnection and heartbeat
- Add useRealtimeAlerts hook with toast notifications and unread badge
- Add alert.publisher service (WS → push → email fallback)
- Integrate publisher into DarkWatch, VoicePrint, HomeTitle, SpamShield, RemoveBrokers
- Update Navbar with connection status indicator and unread count
- Add comprehensive tests (14 passing) for server, client, and publisher

web/package.json

@@ -14,6 +14,7 @@
     "db:seed": "tsx src/server/db/seed.ts"
   },
   "dependencies": {
+    "@libsql/client": "^0.15.0",
     "@solidjs/meta": "^0.29.4",
     "@solidjs/router": "^0.15.0",
     "@solidjs/start": "2.0.0-alpha.2",
@@ -26,7 +27,6 @@
     "bcryptjs": "^3.0.3",
     "bullmq": "^5.77.3",
     "clerk-solidjs": "^2.0.10",
-    "@libsql/client": "^0.15.0",
     "drizzle-orm": "^0.45.2",
     "firebase-admin": "^13.10.0",
     "ioredis": "^5.10.1",
@@ -41,7 +41,8 @@
     "three": "^0.184.0",
     "twilio": "^6.0.2",
     "valibot": "^0.29.0",
-    "vite": "^7.0.0"
+    "vite": "^7.0.0",
+    "ws": "^8.21.0"
   },
   "engines": {
     "node": ">=22"
@@ -49,6 +50,7 @@
   "devDependencies": {
     "@types/node-cron": "^3.0.11",
     "@types/pg": "^8.20.0",
+    "@types/ws": "^8.18.1",
     "drizzle-kit": "^0.31.10",
     "jsdom": "^29.1.1",
     "tsx": "^4.22.3",