{
  "note": "Synthetic teaching fixtures, not responses from a provider request",
  "cases": [
    {
      "status": "pending"
    },
    {
      "status": "failed"
    },
    {
      "status": "done",
      "video": {
        "url": "https://example.invalid/synthetic-only.mp4"
      }
    }
  ]
}