Release v0.0.3

🧶 Knotty v0.0.3 Release

Command System & Source Generator
• Auto-generate ICommand properties with [IntentCommand] / [AsyncIntentCommand] attributes
• Field-based Commands (no parameters)
• Method-based Commands (supports XAML CommandParameter)
• IAsyncCommand interface with IsExecuting property and INotifyPropertyChanged

Effect System (IEffectSource)
• Added IObservable Effects property for View subscription
• Supports Auto-DI scenarios (subscribe via DataContext)
• EffectExtensions.Subscribe() extension method for type-filtered subscription

---

Command System & Source Generator
• [IntentCommand] / [AsyncIntentCommand] 어트리뷰트로 ICommand 자동 생성
• 필드 기반 Command (파라미터 없음)
• 메서드 기반 Command (XAML CommandParameter 지원)
• IAsyncCommand 인터페이스 (IsExecuting + INotifyPropertyChanged)

Effect System (IEffectSource)
• IObservable Effects 프로퍼티 추가
• Auto-DI 환경에서 DataContext 구독 지원
• EffectExtensions.Subscribe() 확장 메서드