CRITICAL DEBUG v2: Could not resolve Site ID

{
  "tenant": "sitemap.xml",
  "siteId": null,
  "resolveError": null,
  "timestamp": "2026-04-18T07:59:50.595Z",
  "env_keys": {
    "NEXT_PUBLIC_APP_URL": "set",
    "VERCEL_URL": "set"
  }
}