GET /api/v1/users

{
  "data": [
    {
      "id": "usr_123",
      "email": "user@example.com",
      "role": "admin",
      "created_at": "2025-01-01T00:00:00Z"
    }
  ]
}

GET /api/v1/users/me

{
  "id": "usr_123",
  "email": "user@example.com",
  "role": "admin"
}