feat: add subweapon support, weapon type logic, and compact item card UI options

lib/utils/item_utils.dart

@@ -33,6 +33,36 @@ class ItemUtils {
     }
   }
 
+  static String getSlotLabel(EquipmentSlot slot) {
+    switch (slot) {
+      case EquipmentSlot.weapon:
+        return 'MAIN';
+      case EquipmentSlot.shield:
+        return 'SUB';
+      case EquipmentSlot.armor:
+        return 'ARMOR';
+      case EquipmentSlot.accessory:
+        return 'ACCESSORY';
+      case EquipmentSlot.consumable:
+        return 'ITEM';
+    }
+  }
+
+  static String getSlotName(EquipmentSlot slot) {
+    switch (slot) {
+      case EquipmentSlot.weapon:
+        return 'Main Weapon';
+      case EquipmentSlot.shield:
+        return 'Subweapon';
+      case EquipmentSlot.armor:
+        return 'Armor';
+      case EquipmentSlot.accessory:
+        return 'Accessory';
+      case EquipmentSlot.consumable:
+        return 'Item';
+    }
+  }
+
   static String getBorderPath(ItemRarity rarity) {
     switch (rarity) {
       case ItemRarity.normal: