curl --request POST \
  --url https://recoup-api.vercel.app/api/content-agent/callback \
  --header 'Content-Type: application/json' \
  --data '
{
  "threadId": "<string>",
  "status": "completed",
  "results": [
    {
      "runId": "<string>",
      "status": "completed",
      "videoUrl": "<string>",
      "captionText": "<string>",
      "error": "<string>"
    }
  ],
  "message": "<string>"
}
'

{
  "status": "ok"
}