New Features

• Add per-GearBar orientation support to lay out GearSlots horizontally or vertically
• Add a configurable ChangeMenu open direction (up/down for horizontal, left/right for vertical GearBars)
• Add a drag handle to move a GearBar while it is unlocked

Bug Fixes

• Fix ChangeMenu width to match the visible columns instead of the total item count

Refactoring and Improvements

• Add a headless unit test suite based on the Busted framework covering the CombatQueue, GearBarManager, configuration migration, ItemManager matchers and macro slot validity
• Add localization parity tests to ensure key and format placeholder consistency across all locales
• Add lint and test status badges to the README
• Upgrade the CI toolchain to Java 21