仓库组件 + 防御塔升级

- `PlayerInventoryComponent`：玩家库存组件，收集金币/组件/防御塔等道具
- 补全防御塔的升级逻辑，最高 5 级

Assets/GameMain/Scripts/UI/Game/UseCase/RepoFormUseCase.cs

@@ -7,14 +7,16 @@ namespace GeometryTD.UI
     {
         public RepoFormRawData CreateInitialModel()
         {
-            BackpackInventoryData sample = BuildSampleInventory();
+            BackpackInventoryData sample = GameEntry.PlayerInventory != null
+                ? GameEntry.PlayerInventory.GetInventorySnapshot()
+                : SampleInventory();
             return new RepoFormRawData
             {
                 Inventory = sample
             };
         }
 
-        private static BackpackInventoryData BuildSampleInventory()
+        public static BackpackInventoryData SampleInventory()
         {
             BackpackInventoryData inventory = new BackpackInventoryData
             {
@@ -75,11 +77,11 @@ namespace GeometryTD.UI
                 BaseComponentInstanceId = baseComp.InstanceId,
                 Stats = new DefenseTowerStatsData
                 {
-                    AttackDamage = 30,
-                    DamageRandomRate = 0.05f,
-                    RotateSpeed = 12f,
-                    AttackRange = 2f,
-                    AttackSpeed = 1.5f,
+                    AttackDamage = new[] { 200, 220, 240, 260, 300 },
+                    DamageRandomRate = new[] { 0f, 0f, 0f, 0f, 0f },
+                    RotateSpeed = new[] { 200f, 210f, 220f, 230f, 240f },
+                    AttackRange = new[] { 4.5f, 4.7f, 4.9f, 5.1f, 5.3f },
+                    AttackSpeed = new[] { 1.5f, 1.2f, 1.1f, 1.0f, 0.8f },
                     AttackMethodType = AttackMethodType.NormalBullet,
                     AttackPropertyType = AttackPropertyType.Fire,
                     Tags = new[] { TagType.Fire, TagType.BurnSpread }
@@ -98,11 +100,11 @@ namespace GeometryTD.UI
                 BaseComponentInstanceId = 0,
                 Stats = new DefenseTowerStatsData
                 {
-                    AttackDamage = 50,
-                    DamageRandomRate = 0.03f,
-                    RotateSpeed = 20f,
-                    AttackRange = 4f,
-                    AttackSpeed = 1f,
+                    AttackDamage = new[] { 200, 220, 240, 260, 300 },
+                    DamageRandomRate = new[] { 0f, 0f, 0f, 0f, 0f },
+                    RotateSpeed = new[] { 200f, 210f, 220f, 230f, 240f },
+                    AttackRange = new[] { 4.5f, 4.7f, 4.9f, 5.1f, 5.3f },
+                    AttackSpeed = new[] { 1.5f, 1.2f, 1.1f, 1.0f, 0.8f },
                     AttackMethodType = AttackMethodType.NormalBullet,
                     AttackPropertyType = AttackPropertyType.Physics,
                     Tags = new[] { TagType.Pierce }