fix: two-handed weapons no longer show off-hand slot option in Equipment tab

src/lib/game/data/equipment/utils.ts

@@ -46,9 +46,9 @@ export function getValidSlotsForCategory(category: EquipmentCategory): Equipment
 
 // Get valid slots for a specific equipment type (considers 2-handed weapons)
 export function getValidSlotsForEquipmentType(equipType: EquipmentType): EquipmentSlot[] {
-  // 2-handed weapons occupy both main hand and offhand
+  // 2-handed weapons can only be equipped in the main hand (they occupy both hands)
   if (equipType.twoHanded) {
-    return ['mainHand', 'offHand'];
+    return ['mainHand'];
   }
   
   // Otherwise use category-based slots