feat: Füge Wallet-Unterstützung zur Crash-Seite hinzu und verbessere WebSocket-Verbindung

frontend/nginx.conf

@@ -14,6 +14,18 @@ server {
     root /usr/share/nginx/html;
     index index.html;
 
+    # --- WebSocket-Route ---
+    # Dieser Block fängt Anfragen an /ws ab und leitet sie mit den
+    # nötigen Headern für eine WebSocket-Verbindung weiter.
+    location /ws {
+        proxy_pass http://bierbaron_backend;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
+        proxy_set_header Host $host;
+    }
+
+    # --- API-Routen (HTTP) ---
     location ~ ^/(api|auth|me|wallet|slot|admin|health)($|/) {
         proxy_pass http://bierbaron_backend;
         proxy_http_version 1.1;
@@ -25,14 +37,15 @@ server {
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto $proxy_x_forwarded_proto;
-
         proxy_set_header Cookie $http_cookie;
     }
 
+    # --- Statisches Frontend (Single Page Application) ---
     location / {
         try_files $uri /index.html;
     }
 
+    # Optionale Caching-Regeln für statische Assets
     location ~* \.(js|css|png|jpg|jpeg|gif|svg|ico|webp|woff|woff2|ttf)$ {
         expires 7d;
         add_header Cache-Control "public, max-age=604800, immutable";