{
  "accessToken": "eyJ...identity-jwt",
  "refreshToken": "rt_8f2c...",
  "expiresIn": 3600,
  "user": {
    "id": "b29c4d7c-3a8e-4d52-8b9c-1f9d2e0a2c3b",
    "email": "jane@example.com",
    "name": "Jane Doe",
    "tenantId": "tenant-9f2a"
  }
}