🔐 Managing User Sessions

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User login status and data are managed using state management (e.g., Provider or Bloc).

- On successful login, token/user data is stored using `SharedPreferences` or `flutter_secure_storage`.
- Auto-login and session validation are implemented on app start.

Example:
```dart
final prefs = await SharedPreferences.getInstance();
prefs.setString('token', user.token);