SwiftUI You MUST use this skill for ANY SwiftUI work including views, state, navigation, layout, animations, architecture, gestures, and debugging. Quick Reference | Symptom / Task | Reference | |----------------|-----------| | View not updating | See | | View update still broken after debugging | See | | Slow previews / building good previews / / / variant matrix | See | | Preview API reference ( , traits, modes, Development Assets) | See | | Preview crashes / won't load | See (Preview Crashes section) | | Navigation issues | See | | Navigation still broken after debugging | See | | Navigati…