Performance
- Reduced zone selection particle load (slower update task + lower particle density) to help FPS during zone editing/near KOTH
- Reduced server load by optimizing scoreboard and bossbar update frequency

Improvements
- Added FastStats metrics support
- Added a configurable display update speed option to improve performance

Fixes
- Fixed /kothar start showing the wrong “Next KOTH” countdown
- Fixed “Next KOTH” hologram not being removed when deleting a KOTH
- Fixed players being able to take items from the /kothar shop GUI
- Fixed Shift+Left/Shift+Right click not working in the KOTH editor GUI
- Fixed /kothar update download issues and improved cleanup of older plugin jars