server {
    listen 39000 default_server;
    listen [::]:39000 default_server;
    server_name _;

    # 允许较大的请求体（图标/壁纸上传）
    client_max_body_size 10m;
    
    # 1. 托管前端静态文件
    location / {
        root /app/dist;
        index index.html;
        try_files $uri $uri/ /index.html;
    }

    # 2. 转发 API 请求给后端 (localhost:39001)
    location /api/ {
        proxy_pass http://127.0.0.1:39001;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        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_cache_bypass $http_upgrade;
    }
}