GenGui

#  1.1
- Adjusted menu alignment for cleaner and more consistent positioning.
- Added village spacing/separation validation to prevent structure overlap (min spacing 8, separation 4).
- Added PerformanceOptimizer (biome cache, reflection cache, bounded biome search, automatic cache cleanup, performance logging).
- Improved player spawn handling to keep vanilla-like behavior.
- Optimized PlayerTickEvent to process only relevant players.
- Improved stability with additional null-safety checks and safer internal access.
- Improved logging with clearer warnings and automatic value correction messages.