{
  "host": "example.com",
  "port": 443,
  "tls": {
    "acme": {
      "email": "admin@example.com",
      "storage": "./certs",
      "challenge": "http-01"
    },
    "httpRedirectPort": 80
  },
  "http2": { "maxConcurrentStreams": 100 },
  "compression": true,
  "securityHeaders": true,
  "logging": "json",
  "static": "./dist",
  "staticOptions": { "maxAge": "7d", "preCompressed": true },
  "proxy": {
    "/api": {
      "targets": ["http://backend:4000"],
      "stripPrefix": true,
      "healthCheck": { "path": "/health", "intervalSecs": 15 }
    }
  },
  "healthCheck": true,
  "metrics": { "path": "/__metrics__", "token": "$METRICS_TOKEN" },
  "fallback": {
    "byAccept": {
      "html": { "status": 200, "file": "./dist/index.html" },
      "json": { "status": 404, "body": { "error": "Not Found" } },
      "*": { "status": 200, "file": "./dist/index.html" }
    }
  }
}