curl --request GET \
  --url 'https://api.example.com/api/admin/sites' \
  --header 'Authorization: Bearer YOUR_API_KEY'

{
  "sites": [
    {
      "id": "string",
      "platform": "string",
      "domain": "string",
      "createdAt": "2026-07-24T12:00:00Z"
    }
  ]
}