curl --request GET \
  --url https://api.novacal.io/v1/availability \
  --header 'Authorization: Bearer <token>'

{
  "success": true,
  "data": {
    "availability": {
      "2026-03-23": [
        {
          "start": "2026-03-23T09:00:00+00:00",
          "end": "2026-03-23T17:00:00+00:00"
        }
      ],
      "2026-03-24": [
        {
          "start": "2026-03-24T10:00:00+00:00",
          "end": "2026-03-24T15:00:00+00:00"
        }
      ]
    }
  }
}