Fixed item duplication exploit - once an item has been claimed, it can no longer be re-donated to Charity.
Auto-stacking system - identical items now merge automatically to save space in the Charity GUI.
Permission system cleanup - all commands now respect proper permission checks (charity.use, charity.admin, etc.) and use consistent messages from messages.yml.
Reload & Points Command updates - both now prevent unauthorized access and only display usage to permitted players.
New /ch stats command - shows total stacks, total items, unique owners, top donor, most common material, total worth (Karma), and file info (admin only).
Help command rework - dynamically lists available commands based on player permissions (user vs admin view).
General cleanup & polish - improved in-game messages, safer file handling, and better command structure for maintainability.