### Fixed
- **`/shop` Command:** Fixed `/shop` not working — command now properly registered as alias for `/market`
- **GUI Conflict with Other Plugins:** Fixed issue where The Endex would intercept inventory clicks in other plugins' GUIs
- Added title verification to click/drag handlers to prevent intercepting non-Endex inventories
- Improved inventory close handler to properly clean up tracking when another plugin opens a GUI
- **Command Alias Registration:** Fixed `CommandAliasManager` not reading the `shortcuts` section from `commands.yml`
- Now properly parses nested shortcut config (target, permission, description)

### Changed
- **Plugin Namespace:** Changed from `TheEndex` to `Endex` for cleaner command namespacing
- Commands now use `endex:` prefix (e.g., `/endex:shop`, `/endex:market`)
- Data folder remains `plugins/TheEndex/` for backwards compatibility
- **Command Aliases:** Added built-in aliases in plugin.yml for better Bukkit registration
- `/market` aliases: `shop`, `m`, `trade`, `exchange`, `bazaar`
- `/endex` aliases: `ex`