curl --request GET \
  --url https://api.example.com/api/diff \
  --header 'Authorization: Bearer <token>'

{
  "files": [
    {
      "oldPath": "<string>",
      "newPath": "<string>",
      "hunks": [
        {
          "oldRange": {
            "start": 123,
            "lines": 123
          },
          "newRange": {
            "start": 123,
            "lines": 123
          },
          "body": "<string>",
          "heading": "<string>"
        }
      ]
    }
  ]
}