New: Localization (EN/DE)
Auto-detects client language with fallback to en_US. Language files are extracted to plugins/SimpleInventarEdit/lang/ on first run.

New: In-GUI Help (no chat spam)
A Help Book appears in the Player List (slot 47) and the Palette (slot 48), replacing chat/actionbar hints.

Navigation Improvements
Reliable “Back on close” after closing target Inventory/Ender Chest; explicit Back buttons in Armor and Palette GUIs.

Palette UX
Clearer tooltips (Left = stack, Right = 1) fully configurable via language files; dedicated Back button.

Packaging/Internal
Language resources are bundled in the JAR and extracted at startup; small timing fix so the player list doesn’t reopen immediately.

Compatibility
No changes required to permissions or config.yml.

Note: Placeholder texts for empty armor slots are still hardcoded for now; they’ll be moved to the language files in a future update.