{
  "title": "Unhandled promise rejection",
  "description": "fetch promise has no catch; network failure leaves UI in loading state forever.",
  "severity": "MEDIUM",
  "category": "async",
  "findings": [
    {
      "file": "app.js",
      "trigger": "await fetch chain with no try/catch or .catch",
      "description": "Unhandled rejection \u2014 loading state never resolves on failure",
      "severity": "MEDIUM",
      "classes": [
        "HG-ASYNC",
        "CWE-754"
      ]
    }
  ]
}