Implement a complete Zuma-style puzzle game featuring:
- Pure game engine (`ZumaLogic.js`) with Catmull-Rom path animation,
segment-based chain physics, match-3 popping, and power-ups (slow,
reverse, accuracy, explosion)
- Phaser scene (`ZumaGame.js`) with procedural textures, laser sight,
and full UI (level select, overlays, scoring)
- 20 hand-designed levels across 6 path shapes (s-curve, horseshoe,
spiral, zigzag, double-loop, figure-eight) with calibrated difficulty
- Level generator (`genZuma.js`) and verification suite (`verifyZuma.js`)
for path geometry, parameter ranges, and engine correctness
- Platform integration: game registry, scene dispatch, preload asset
