feat: update docker-compose and Nginx configuration for improved service dependencies and API routing

- Added 'depends_on' for the frontend service to ensure it starts after the backend service.
- Updated Nginx configuration to proxy API and media requests to the backend, enhancing client access under the same host URL.
- Included health check endpoint for backend service in Nginx configuration to monitor service status.

.gitea/workflows/deploy-prod.yml

@@ -18,5 +18,6 @@ jobs:
           docker compose build --no-cache
           docker compose up -d
           sleep 5
-          curl -sf http://localhost:8003/api/version && echo "✓ PROD API healthy"
+          curl -sf http://localhost:8003/api/version && echo "✓ PROD API (direkt) healthy"
+          curl -sf http://localhost:3003/api/version && echo "✓ PROD API über Frontend-Nginx (wie Browser) healthy"
           echo "=== Shinkan PROD Deploy complete ==="

docker-compose.yml

@@ -56,6 +56,8 @@ services:
     container_name: shinkan-ui
     ports:
       - "3003:80"
+    depends_on:
+      - backend
     restart: unless-stopped
     networks:
       - shinkan-network

frontend/nginx.conf

@@ -4,6 +4,37 @@ server {
     root /usr/share/nginx/html;
     index index.html;
 
+    # Uploads (Übungsmedien) und API erreichen Clients unter derselben Host-URL wie die SPA —
+    # dafür muss Nginx zur FastAPI-Instanz im Compose-Netz weiterleiten.
+    client_max_body_size 64m;
+
+    location ^~ /api/ {
+        proxy_pass http://backend:8000;
+        proxy_http_version 1.1;
+        proxy_set_header Host $host;
+        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 $scheme;
+        proxy_connect_timeout 60s;
+        proxy_send_timeout 300s;
+        proxy_read_timeout 300s;
+    }
+
+    location ^~ /media/ {
+        proxy_pass http://backend:8000;
+        proxy_http_version 1.1;
+        proxy_set_header Host $host;
+        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 $scheme;
+    }
+
+    location = /health {
+        proxy_pass http://backend:8000/health;
+        proxy_http_version 1.1;
+        proxy_set_header Host $host;
+    }
+
     # SPA routing - serve index.html for all routes
     location / {
         try_files $uri $uri/ /index.html;