server {
    listen 8443;
    server_name localhost;

    # Proxy headers
    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;

    # API endpoint
    location /api/ {
        proxy_pass http://localhost:8444/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_cache_bypass $http_upgrade;
    }

    # Health check endpoint
    location /health {
        access_log off;
        return 200 'OK';
        add_header Content-Type text/plain;
    }

    # Error handling
    error_page 500 502 503 504 /50x.html;
    location = /50x.html {
        root /usr/share/nginx/html;
    }
}