Fix: WebSocket-Verbindungen über Apache-Proxy routen

Apache-Konfiguration:
- Füge WebSocket-Proxy für /ws/ Pfad hinzu
- Leite WebSocket-Upgrade-Header korrekt weiter

Frontend-Konfiguration:
- Socket.io verwendet jetzt VITE_API_BASE_URL (über /socket.io/ Proxy)
- Daemon WebSocket verwendet wss://www.your-part.de/ws
- Chat WebSocket verwendet wss://www.your-part.de/ws

Dies löst die 'operation is insecure' Fehler und ermöglicht
WebSocket-Verbindungen über HTTPS.

frontend/src/store/index.js

@@ -85,8 +85,8 @@ const store = createStore({
           if (currentSocket) {
             currentSocket.disconnect();
           }
-          console.log('🔌 Initializing Socket.io connection to:', import.meta.env.VITE_DAEMON_SOCKET);
-          const socket = io(import.meta.env.VITE_DAEMON_SOCKET, {
+          console.log('🔌 Initializing Socket.io connection to:', import.meta.env.VITE_API_BASE_URL);
+          const socket = io(import.meta.env.VITE_API_BASE_URL, {
             secure: true,
             transports: ['websocket', 'polling']
           });
@@ -103,7 +103,7 @@ const store = createStore({
 
           socket.on('connect_error', (error) => {
             console.error('❌ Socket.io connection error:', error);
-            console.error('❌ URL attempted:', import.meta.env.VITE_DAEMON_SOCKET);
+            console.error('❌ URL attempted:', import.meta.env.VITE_API_BASE_URL);
           });
     
           commit('setSocket', socket);