Animation Patterns Correct API shapes and patterns for SwiftUI animations. Prevents the most common mistakes: mixed spring parameter generations, wrong PhaseAnimator/KeyframeAnimator closure signatures, and using matchedGeometryEffect where matchedTransitionSource is needed. When This Skill Activates Use this skill when the user: - Asks to add, fix, or review animation code - Mentions spring , bounce , or snappy animations - Wants view transitions (insertion/removal, hero, zoom) - Asks about PhaseAnimator or KeyframeAnimator - Wants SF Symbol effects (bounce, pulse, wiggle, breathe) - Mention…