add websockets support

backend/app/websockets/notifications.py

@@ -0,0 +1,36 @@
+from fastapi import WebSocket
+from typing import Dict, List
+import json
+
+class NotificationManager:
+    def __init__(self):
+        self.active_connections: Dict[str, List[WebSocket]] = {
+            "admin": [],  # Подключения админов
+            "employee": []  # Подключения сотрудников
+        }
+
+    async def connect(self, websocket: WebSocket, client_type: str):
+        await websocket.accept()
+        self.active_connections[client_type].append(websocket)
+
+    def disconnect(self, websocket: WebSocket, client_type: str):
+        self.active_connections[client_type].remove(websocket)
+
+    async def broadcast_to_admins(self, message: dict):
+        """Отправка сообщения всем подключенным админам"""
+        for connection in self.active_connections["admin"]:
+            try:
+                await connection.send_json(message)
+            except:
+                # Если не удалось отправить сообщение, пропускаем
+                continue
+
+    async def broadcast_to_employees(self, employee_id: int, message: dict):
+        """Отправка сообщения конкретному сотруднику"""
+        for connection in self.active_connections["employee"]:
+            try:
+                await connection.send_json(message)
+            except:
+                continue
+
+notification_manager = NotificationManager()