Flutter App Shell v0.7.28

Fixed

• 🐛 System UI Overlay Black Bars: Fixed black bars appearing in status bar and home indicator areas across all three UI systems
  • Root Cause: Scaffold implementations didn't configure system UI overlay styling, causing iOS/Android system regions to display black instead of matching scaffold background
  • Solution: Wrapped all scaffold returns with AnnotatedRegion<SystemUiOverlayStyle> to match system UI colors to scaffold backgrounds
  • Affected Files: cupertino_widget_factory.dart, material_widget_factory.dart, forui_widget_factory.dart
  • Impact: Status bar and navigation bar areas now properly match scaffold background colors with correct icon brightness across Cupertino, Material, and ForUI
  • Reported in bug analysis showing black system UI regions on light-colored scaffolds