server {
    listen 80;
    server_name _;
    root /usr/share/nginx/html;
    index index.html;
    server_tokens off;
    client_max_body_size 10m;

    # 健康探针仅通过容器内部访问，不经公开网关暴露依赖状态。
    location = /api/health { return 404; }

    location /api/ {
        proxy_pass http://api:8000;
        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_read_timeout 120s;
    }

    location / {
        try_files $uri $uri/ /index.html;
    }
}