Update Apache configuration and socket service for WebSocket support

This commit adds a ProxyTimeout setting for WebSocket connections in the Apache configuration, enhancing the server's ability to manage long-lived connections. Additionally, the socket service documentation is updated to clarify compatibility with both Apache and Nginx as reverse proxies. These changes improve the handling of real-time communication in the application.

backend/services/socketService.js

@@ -9,7 +9,7 @@ export const initializeSocketIO = (httpServer) => {
       credentials: true,
       methods: ['GET', 'POST']
     },
-    // Wichtig für Reverse Proxy (Nginx): Path und Transports explizit setzen
+    // Wichtig für Reverse Proxy (Apache/Nginx): Path und Transports explizit setzen
     path: '/socket.io/',
     transports: ['websocket', 'polling'],
     // Erlaube Upgrade von polling zu websocket