resolve build error

docker-compose.yml

@@ -65,13 +65,21 @@ services:
         VITE_AUTHENTIK_URL: ${VITE_AUTHENTIK_URL:?VITE_AUTHENTIK_URL is required}
         VITE_CLIENT_ID: ${AUTHENTIK_CLIENT_ID:?AUTHENTIK_CLIENT_ID is required}
     container_name: feuerwehr_frontend_prod
-    ports:
-      - "${FRONTEND_PORT:-80}:80"
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.feuerwehr-frontend.entrypoints=websecure"
+      - "traefik.http.routers.feuerwehr-frontend.rule=Host(`start.feuerwehr-rems.at`)"
+      - "traefik.http.routers.feuerwehr-frontend.tls=true"
+      - "traefik.http.routers.feuerwehr-frontend.tls.certresolver=letsencrypt"
+      - "traefik.http.routers.feuerwehr-frontend.service=feuerwehr-frontend"
+      - "traefik.http.services.feuerwehr-frontend.loadbalancer.server.port=80"
+      - "traefik.docker.network=frontend"
     depends_on:
       backend:
         condition: service_healthy
     networks:
       - feuerwehr_network
+      - traefik_frontend
     healthcheck:
       test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost:80"]
       interval: 30s
@@ -87,3 +95,6 @@ volumes:
 networks:
   feuerwehr_network:
     driver: bridge
+  traefik_frontend:
+    external: true
+    name: frontend