curl --request GET \
  --url https://prod.featherhq.com/api/v1/knowledge-base/collections \
  --header 'Authorization: Bearer <token>'

{
  "collections": [
    {
      "id": "<string>",
      "name": "<string>",
      "description": "<string>",
      "createdAt": "<string>",
      "updatedAt": "<string>",
      "files": [
        {
          "id": "<string>",
          "fileName": "<string>",
          "key": "<string>",
          "status": "<string>",
          "createdAt": "<string>",
          "updatedAt": "<string>",
          "prompt": "<string>",
          "size": 123,
          "url": "<string>"
        }
      ]
    }
  ]
}