重构

- 统一 ItemDescForm/RewardItem/GoodsItem 的描述格式
- 减少组件属性的 Clone 数量，目前只在合并仓库、组装防御塔时才进行复制
- 删除先前留下的冗余 fallback 代码

Assets/GameMain/Scripts/CustomComponent/CombatNode/CombatScheduler/CombatSettlementService.cs

@@ -106,9 +106,8 @@ namespace GeometryTD.CustomComponent
             }
 
             List<RewardSelectItemRawData> rewardPool = new List<RewardSelectItemRawData>(candidateItems.Count);
-            for (int i = 0; i < candidateItems.Count; i++)
+            foreach (var item in candidateItems)
             {
-                TowerCompItemData item = candidateItems[i];
                 if (item == null)
                 {
                     continue;
@@ -295,55 +294,7 @@ namespace GeometryTD.CustomComponent
 
         private static RewardSelectItemRawData BuildRewardSelectRawData(TowerCompItemData item)
         {
-            return new RewardSelectItemRawData
-            {
-                RewardId = item.InstanceId,
-                SlotType = item.SlotType,
-                Title = item.Name,
-                TypeText = BuildRewardTypeText(item.SlotType),
-                Description = BuildRewardDescription(item),
-                Rarity = item.Rarity,
-                Tags = item.Tags != null ? (TagType[])item.Tags.Clone() : Array.Empty<TagType>(),
-                Icon = null,
-                IsSelectable = true,
-                SourceItem = item
-            };
-        }
-
-        private static string BuildRewardTypeText(TowerCompSlotType slotType)
-        {
-            return slotType switch
-            {
-                TowerCompSlotType.Muzzle => "Muzzle Component",
-                TowerCompSlotType.Bearing => "Bearing Component",
-                TowerCompSlotType.Base => "Base Component",
-                TowerCompSlotType.Accessory => "Accessory",
-                _ => "Component"
-            };
-        }
-
-        private static string BuildRewardDescription(TowerCompItemData item)
-        {
-            if (item is MuzzleCompItemData muzzle)
-            {
-                int damage = muzzle.AttackDamage != null && muzzle.AttackDamage.Length > 0 ? muzzle.AttackDamage[0] : 0;
-                return $"Damage: {damage}, Spread: {muzzle.DamageRandomRate:P0}";
-            }
-
-            if (item is BearingCompItemData bearing)
-            {
-                float range = bearing.AttackRange != null && bearing.AttackRange.Length > 0 ? bearing.AttackRange[0] : 0f;
-                float rotateSpeed = bearing.RotateSpeed != null && bearing.RotateSpeed.Length > 0 ? bearing.RotateSpeed[0] : 0f;
-                return $"Range: {range:0.##}, Rotate Speed: {rotateSpeed:0.##}";
-            }
-
-            if (item is BaseCompItemData baseComp)
-            {
-                float attackSpeed = baseComp.AttackSpeed != null && baseComp.AttackSpeed.Length > 0 ? baseComp.AttackSpeed[0] : 0f;
-                return $"Attack Speed: {attackSpeed:0.##}, Property: {baseComp.AttackPropertyType}";
-            }
-
-            return string.Empty;
+            return RewardSelectItemRawDataBuilder.Build(item);
         }
     }
 }