Apple iOS HIG Best Practices Comprehensive guide for Apple Human Interface Guidelines compliance in iOS apps built with SwiftUI. Contains 34 rules across 6 categories covering navigation, interaction design, accessibility, user feedback, UX patterns, and visual design. Clinic Architecture Contract (iOS 26 / Swift 6.2) All guidance in this skill assumes the clinic modular MVVM-C architecture: - Feature modules import + only (never , never sibling features) - App target is the convergence point and owns , concrete coordinators, and Route Shell wiring - stays pure Swift and defines models plus r…