重构：修复 Shop 与 ItemTooltip 跨模块事件边界问题

- 将 _tooltipLocked 状态从 ItemTooltipController 移到 ShopController 维护
- DisplayItem 只发 Shop 模块 UI 事件（Hover/Lock/Hide）
- ItemTooltipForm 取消按钮发 ItemTooltip 模块事件自关闭
- ShopController 通过 UIRouter 跨模块控制 ItemTooltipForm
- 移除 DisplayItemHideEventArgs 的 Force 字段，分离两种关闭场景

Assets/GameMain/Scripts/Runtime/UIBase/Main/Shop/ShopUseCase.cs

@@ -28,6 +28,8 @@ namespace SepCore.UI
 
     public class ShopUseCase : IUIUseCase
     {
+        private const float WeaponRecycleRate = 0.3f;
+
         private readonly Player _player;
         private readonly int _currentLevel;
         private readonly Action _onShopFinish;
@@ -404,5 +406,10 @@ namespace SepCore.UI
             Player.Coin += recyclePrice;
             return true;
         }
+
+        public int CalculateRecyclePrice(int basePrice)
+        {
+            return Mathf.FloorToInt(basePrice * WeaponRecycleRate);
+        }
     }
 }