curl --request GET \
  --url https://app.concretehq.com/api/v1/me \
  --header 'Authorization: Bearer <token>'

{
  "publicId": "abc123def456",
  "role": "admin",
  "user": {
    "publicId": "654fed321cba",
    "email": "john@example.com",
    "firstName": "John",
    "lastName": "Doe"
  }
}