add websockets suppor3

backend/app/websockets/notifications.py

@@ -2,6 +2,7 @@ from fastapi import WebSocket
 from typing import Dict, List
 import json
 import logging
+import asyncio
 
 logger = logging.getLogger(__name__)
 
@@ -58,4 +59,12 @@ class NotificationManager:
         for connection in disconnected:
             self.disconnect(connection, "employee")
 
+    async def handle_ping(self, websocket: WebSocket):
+        """Обработка ping сообщений"""
+        try:
+            await websocket.send_json({"type": "pong"})
+            logger.debug("Sent pong response")
+        except Exception as e:
+            logger.error(f"Error sending pong: {e}")
+
 notification_manager = NotificationManager()