用户登录

curl -X POST 'https://your-domain.com/api/v1/login' \\
  -H 'Content-Type: application/json' \\
  -d '{
    "username": "your_username",
    "password": "your_password"
  }'

{
  "access_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
  "token_type": "bearer",
  "expires_in": 3600,
  "user": {
    "id": "user_123456",
    "username": "example_user",
    "role": "user",
    "status": "active",
    "created_at": "2024-01-01T00:00:00Z",
    "updated_at": "2024-01-15T12:00:00Z",
    "last_login": "2024-01-15T12:00:00Z",
    "api_calls_count": 150,
    "max_api_calls": 1000
  }
}

-H 'Authorization: Bearer your_access_token'