Bug-fix release.
Fixed
- Checkmate / draw detection in AI mode. Human-vs-AI never checked for game end — if the bot mated you (or you mated the bot), the board just kept asking for another move forever. AI mode now evaluates the position after every move (yours and the bot's), announces checkmate / stalemate / 50-move / insufficient material, blinks the king on check, and ends the game.
Changed
- Endless checkmate fireworks. On checkmate the board now loops the firework animation continuously until someone lifts a piece, instead of a single brief burst — in both Human-vs-Human and Human-vs-AI.
Includes everything from v1.4.0 (persistent games / resume across power-off) and v1.3.0. Full details in CHANGELOG.md.