Wapuu easter egg: lazy sprite loading

[sejas]

Related issues

Follow-up to #3270 addressing two review findings:

1. Eager sprite loading — renderer.ts instantiates 10 Image objects at module top level. wapuu-score.tsx imports MAX_SCORE from game-loop.ts, which transitively imports renderer.ts, so opening Settings → Account fires 10 sprite network requests for users who never play.

Proposed Changes

apps/studio/src/modules/wapuu-world/engine/renderer.ts

Convert module-level const sprites = { ... } to a lazy getSprites() singleton. The 9 sprites.foo call sites updated to getSprites().foo. Static import bgFarUrl from '...png' lines stay (Vite resolves these to URL strings at build time, no network cost) — only the new Image(); .src = url pair is now deferred until the first render call inside startGame().

Testing Instructions

Lazy sprite loading

1. npm start. Open DevTools → Network tab. Clear log. Filter by wapuu.
2. Log in and navigate to Settings → Account.
3. Expected: only wapuu-player-idle-sprite.png loads (the score icon — direct import in wapuu-score.tsx). The other 9 sprite PNGs (wapuu-bg-far.png, wapuu-bg-near.png, wapuu-gutenberg-sprite.png, wapuu-mguy-sprite.png, wapuu-flag-sprite.png, wapuu-wave-sprite.png, wapuu-sprites-coin.png, wapuu-sprites-tiles.png, wapuu-player-sprite.png) must not appear.
4. Trigger the game (Konami code or 4-second hold).
5. Expected: the 9 deferred sprite PNGs now appear in the network log on game open.

Pre-merge Checklist

• Have you checked for TypeScript, React or other console errors? (Tests pass, no errors)

[wojtekn]

Settings click delay regression — original PR's triple-click detection delays every click on the settings gear by 200ms before opening settings. UX regression for all users.

I'm not convinced - pressing the key for some time doesn't seem like cheat codes should work. What if we removed this part completely and left the Konami code as the only way? This feels ever more fun to me.

I'm happy to merge the resource loading part.

[sejas]

Ok! I'll remove the long press modifications and merge the loading part.