CarPlay Build category-entitled, template-based CarPlay apps for the vehicle display. Scope: Swift 6.3, iOS 26+. See references/carplay-patterns.md for extended patterns including full navigation sessions, dashboard scenes, and advanced template composition. Scope boundary: full CarPlay framework apps use category entitlements, , , , and system navigation. CarPlay-visible WidgetKit widgets and ActivityKit Live Activities are separate system experiences; route their implementation to those domains while keeping CarPlay-specific validation here. Contents - Entitlements and Setup - Scene Configu…