server {
    listen 80;
    root /usr/share/nginx/html;
    index index.html;

    # config.js immer frisch laden (kein Cache — enthält Runtime-Config)
    location = /config.js {
        add_header Cache-Control "no-store";
    }

    # SPA: alle Routen auf index.html
    location / {
        try_files $uri $uri/ /index.html;
    }

    # API-Requests an Backend weiterleiten (optional, falls kein reverse proxy davor)
    # location /api/ {
    #     proxy_pass https://BACKEND_HOST:BACKEND_PORT;
    #     proxy_ssl_verify off;
    # }
}