补充参战防御塔进入战斗逻辑

- 将 Inventory 中参战的防御塔数据传递到 CombatSelectForm 中
- 为防御塔的图标展示添加 TowerRepoItem 与 TowerIconArea 适配防御塔的三层 Image

Assets/GameMain/Scripts/CustomComponent/PlayerInventory/PlayerInventoryComponent.cs

@@ -1,4 +1,5 @@
-using GeometryTD.CustomUtility;
+using System.Collections.Generic;
+using GeometryTD.CustomUtility;
 using GeometryTD.Definition;
 using UnityGameFramework.Runtime;
 
@@ -44,6 +45,31 @@ namespace GeometryTD.CustomComponent
             return _queryModel.GetSnapshot();
         }
 
+        public IReadOnlyList<TowerItemData> GetParticipantTowerSnapshot()
+        {
+            EnsureInitialized();
+
+            BackpackInventoryData inventory = _queryModel.Inventory;
+            if (inventory?.ParticipantTowerInstanceIds == null || inventory.ParticipantTowerInstanceIds.Count <= 0)
+            {
+                return new List<TowerItemData>();
+            }
+
+            List<TowerItemData> result = new List<TowerItemData>(inventory.ParticipantTowerInstanceIds.Count);
+            for (int i = 0; i < inventory.ParticipantTowerInstanceIds.Count && result.Count < MaxParticipantTowerCount; i++)
+            {
+                long towerId = inventory.ParticipantTowerInstanceIds[i];
+                if (!_queryModel.TryGetTowerById(towerId, out TowerItemData tower) || tower == null)
+                {
+                    continue;
+                }
+
+                result.Add(InventoryCloneUtility.CloneTower(tower));
+            }
+
+            return result;
+        }
+
         public void MergeInventory(BackpackInventoryData gainedInventory)
         {
             EnsureInitialized();
@@ -126,3 +152,4 @@ namespace GeometryTD.CustomComponent
         }
     }
 }
+