🔐 Added Authentication System [Changelog]

🚀 Features Added

• Implemented local authentication using biometrics and screen lock
• Added frosted glass blur effect for sensitive information
• Smart authentication persistence across app sessions
• Conditional authentication based on saved connections

🔧 Technical Changes

Authentication Service

• Created LocalAuthService with biometric and screen lock support
• Added SharedPreferences for auth state persistence
• Implemented silent authentication mechanism

UI Components

• Added AuthenticationDialog with retry functionality
• Created BlurredText widget for secure information display
• Integrated authentication with dashboard screen

Security & Flow

• Authentication only required if saved connections exist
• Session persistence to prevent redundant authentication
• Graceful fallback to dialog if silent auth fails

🐛 Bug Fixes

• Fixed repeated authentication prompts on dashboard revisit
• Resolved unnecessary authentication for new users
• Corrected authentication flow for first-time app launch
• Optimized connection count check before authentication

📝 Directory Structure

lib/
  ├── core/
  │   └── auth/
  │       ├── services/
  │       │   └── local_auth_service.dart
  │       └── widgets/
  │           └── auth_dialog.dart
  └── core/widgets/
      └── blurred_text.dart

🔄 Dependencies Added

• local_auth: ^2.1.7
• local_auth_android: ^1.0.34
• local_auth_ios: ^1.1.5
• shared_preferences: ^2.2.2

#flutter #security #authentication