Input buffer system:
- Added 3-slot direction input buffer to handle rapid key presses
- Buffer ignores duplicate inputs (same key pressed multiple times)
- Opposite direction replaces last buffered input (e.g., LEFT→RIGHT replaces LEFT)
- Buffer overflow replaces last slot when full
- Multi-segment snakes skip invalid 180° turns when consuming buffer
- Head-only snakes (length=1) can turn 180° for flexibility
Gameplay improvements:
- Desktop client auto-starts game on connect (no SPACE needed)
- Field populates with 3 apples when no players connected
- HTTP server now binds to 0.0.0.0 for network access (matches game server)
Testing:
- Added 7 new tests for input buffer functionality
- Added test for zero-player apple spawning
- All 19 tests passing
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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