Save a career fact

{
  "id": "<string>",
  "userId": "<string>",
  "createdAt": "2026-08-10T12:00:00Z",
  "updatedAt": "2026-08-10T12:00:00Z",
  "applicationId": "<string>",
  "text": "<string>",
  "category": "<string>",
  "source": {
    "kind": "user-message",
    "id": "<string>",
    "quote": "<string>"
  },
  "sourceKey": "<string>",
  "status": "<string>",
  "revisions": [
    {
      "text": "<string>",
      "at": "<string>"
    }
  ]
}

{
  "defined": true,
  "code": "<string>",
  "status": 1,
  "message": "<string>",
  "data": null
}