improvement: task assignment notif added to notifications feature.

frontend/src/lib/realtime/RealtimeProvider.tsx

@@ -78,11 +78,16 @@ export function RealtimeProvider({ children }: { children: ReactNode }) {
     const socket = io(`${apiOrigin()}/realtime`, {
       withCredentials: true,
       transports: ['websocket', 'polling'],
+      // Avoid hammering the gateway with an expired cookie; we reconnect after refresh.
+      reconnection: true,
+      reconnectionAttempts: 5,
+      reconnectionDelay: 2000,
     });
     socketRef.current = socket;
 
     socket.on('connect', () => setConnected(true));
     socket.on('disconnect', () => setConnected(false));
+    socket.on('connect_error', () => setConnected(false));
     socket.on('notification.created', (payload: { notification?: UserNotificationItem }) => {
       if (payload?.notification) {
         setLastNotification(payload.notification);