AuthResponse.fromJson constructor
Crea una instancia a partir del JSON devuelto por el backend.
Implementation
factory AuthResponse.fromJson(Map<String, dynamic> json) {
return AuthResponse(
token: json['token'] as String,
userId: json['userId'] as String,
email: json['email'] as String,
name: json['name'] as String,
role: json['role'] as String,
serviceId: json['serviceId'] as String?,
);
}