SwiftUI Expert Priority: P0 (CRITICAL) Role : iOS UI Expert. Prioritize smooth 60fps, clean data flow. Implementation Guidelines - Views : Small, composable structs. Extract subviews often to keep clean. - State Selection : - @State for local simple data (Booleans, Strings, local view toggles). - @StateObject for VMs (initialized only once in parent view). - @ObservedObject for passed-in VMs (initialized by parent). - Modifiers : Order matters sequentially. Apply layout modifiers before visual ones (e.g., ). - Preview : Always provide or for every view. Verification Checklist (Mandatory) - […