feat: comic-panel HUD, runtime-faithful pad mapping, props + wheee voices

feat: real-size arcade cabinets + size-adaptive wireframe scan

feat: relief as gentle slopes baked into the level itself

feat: arcade row moved to the front wall + toggleable relief terraces (prototype)

feat: replace jukebox with a row of 3 arcade cabinets

feat: static collision box for the jukebox prop

feat: Vite+React+MUI+R3F app shell in app/ (framework-agnostic game core, zustand bridge)