curl --request GET \
  --url https://api.odin.fun/v1/user/{principal}/achievements \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "category_id": 123,
      "category_name": "<string>",
      "achievements": [
        {
          "category": 123,
          "category_order": 123,
          "default": 123,
          "description": "<string>",
          "image": "<string>",
          "name": "<string>",
          "prereq_active": [
            0,
            1,
            3
          ],
          "prereq_display": [
            0,
            1,
            3
          ],
          "id": 123,
          "status": 123,
          "status_text": "<string>"
        }
      ]
    }
  ]
}