- Implement staggered tile pop animation: face overlay flashes on each tile,
then shatters into four quadrants that fly diagonally while shrinking/fading
- Play 8-bit card sound per tile, 8-bit action/win sounds for 4+/5+ tile clears
- Adjust character speed levels in tetrisattack.json (Jerry-1, Michael-2,
Steve-2, Victor-3, Klaxon-4)
- Replace cursor movement SFX with click sound
- Update advancewars-units and tetrisattack-panels sprite sheets and PSDs
- Add sfx-click and sfx-casino-win-8bit to preload and sound registry
