from dataclasses import dataclass from typing import Optional @dataclass class User: """User model for API requests and responses""" email: str password: str display_name: str id: Optional[str] = None @dataclass class RegisterRequest: """Request payload for /auth/register endpoint""" email: str password: str display_name: str @dataclass class LoginRequest: """Request payload for /auth/login endpoint""" email: str password: str @dataclass class AuthResponse: """Response from authentication endpoints""" success: bool message: str user: Optional[User] = None token: Optional[str] = None