Dice overhaul:
- Flat white die with CSS-rendered dots (3x3 grid, proper pip layout)
- Roll animation: rapid random faces + violent shake + blur (55ms per frame, 14 frames)
- SLAM landing: scale 1.25 → 1.0 with spring easing
- Heavy haptic on every roll
- Dice area shakes on land
- Rolling 6: golden box-shadow glow + 8 star particles + success haptic
- Bot rolls: same dot renderer with subtle scale pulse
- Button fades to 0.5 opacity when disabled (clear visual state)
- Faster animation interval (55ms vs 70ms) for more frantic feel
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>