All three spades face cards had a heart (♥) baked into their
bottom-right corner instead of a spade (♠). Fixed by rotating the
correct top-left corner 180° and stamping it over the wrong corner.
Pixel-count parity confirmed between TL and BR corners on all three cards.
Deletes QS_BUG.md now that the asset content bug is resolved.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Reorganise card PNGs into assets/cards/faces/{classic,dark}/ and
assets/cards/backs/{classic,dark}/
- Rasterise dark SVG theme alongside existing classic set
- Add "Dark / Classic" toggle button in the game HUD; persists to
localStorage as fs_theme (defaults to classic)
- Preload both themes on page load so switching is instant
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>