为随机角色卡补 hover 反向链路

新增 SelectRoleClearEventArgs：hover 随机卡时清空选中状态，让上方属性区回到 _randomRoleCard。

- SelectRoleForm.OnRandomHoverEnter 上报事件
- SelectRoleUseCase.ClearSelection 重置 SelectedRoleId 并重建 RawData
- SelectRoleController 订阅事件并刷新 Context
- SelectRoleForm.prefab 随机卡 _onPointerEnterAction 绑定新方法

Assets/GameMain/Scripts/Base/Event/SelectRoleForm/SelectRoleClearEventArgs.cs

@@ -0,0 +1,21 @@
+using GameFramework;
+using GameFramework.Event;
+
+namespace SepCore.Event
+{
+    public class SelectRoleClearEventArgs : GameEventArgs
+    {
+        public static readonly int EventId = typeof(SelectRoleClearEventArgs).GetHashCode();
+
+        public override int Id => EventId;
+
+        public static SelectRoleClearEventArgs Create()
+        {
+            return ReferencePool.Acquire<SelectRoleClearEventArgs>();
+        }
+
+        public override void Clear()
+        {
+        }
+    }
+}

Assets/GameMain/Scripts/Base/Event/SelectRoleForm/SelectRoleClearEventArgs.cs.meta

@@ -0,0 +1,11 @@
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+guid: af5e47498caf28f4bad0b19945197767
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/GameMain/Scripts/Presentation/Menu/SelectRole/SelectRoleController.cs

@@ -23,6 +23,7 @@ namespace SepCore.UI
         {
             GameEntry.Event.Subscribe(SelectRoleReturnEventArgs.EventId, OnSelectRoleReturn);
             GameEntry.Event.Subscribe(SelectRoleHoverEventArgs.EventId, OnSelectRoleHover);
+            GameEntry.Event.Subscribe(SelectRoleClearEventArgs.EventId, OnSelectRoleClear);
             GameEntry.Event.Subscribe(SelectRoleConfirmEventArgs.EventId, OnSelectRoleConfirm);
         }
 
@@ -30,6 +31,7 @@ namespace SepCore.UI
         {
             GameEntry.Event.Unsubscribe(SelectRoleReturnEventArgs.EventId, OnSelectRoleReturn);
             GameEntry.Event.Unsubscribe(SelectRoleHoverEventArgs.EventId, OnSelectRoleHover);
+            GameEntry.Event.Unsubscribe(SelectRoleClearEventArgs.EventId, OnSelectRoleClear);
             GameEntry.Event.Unsubscribe(SelectRoleConfirmEventArgs.EventId, OnSelectRoleConfirm);
         }
 
@@ -170,6 +172,33 @@ namespace SepCore.UI
             await OpenUIAsync(rawData);
         }
 
+        private void OnSelectRoleClear(object sender, GameEventArgs e)
+        {
+            if (e is not SelectRoleClearEventArgs)
+            {
+                return;
+            }
+
+            if (!IsCurrentFormEventSender(sender))
+            {
+                return;
+            }
+
+            OnSelectRoleClearAsync().Forget();
+        }
+
+        private async UniTaskVoid OnSelectRoleClearAsync()
+        {
+            if (_useCase == null)
+            {
+                Log.Error("SelectRoleController.OnSelectRoleClearAsync() useCase is null.");
+                return;
+            }
+
+            SelectRoleRawData rawData = _useCase.ClearSelection();
+            await OpenUIAsync(rawData);
+        }
+
         private void OnSelectRoleConfirm(object sender, GameEventArgs e)
         {
             if (e is not SelectRoleConfirmEventArgs)

Assets/GameMain/Scripts/Presentation/Menu/SelectRole/SelectRoleForm.cs

@@ -98,5 +98,10 @@ namespace SepCore.UI
         {
             GameEntry.Event.Fire(this, SelectRoleConfirmEventArgs.Create());
         }
+
+        public void OnRandomHoverEnter()
+        {
+            GameEntry.Event.Fire(this, SelectRoleClearEventArgs.Create());
+        }
     }
 }

Assets/GameMain/Scripts/Runtime/UIBase/Menu/SelectRoleForm/SelectRoleUseCase.cs

@@ -30,6 +30,12 @@ namespace SepCore.UI
             return BuildModel(roleId);
         }
 
+        public SelectRoleRawData ClearSelection()
+        {
+            SelectedRoleId = 0;
+            return BuildModel(0);
+        }
+
         public bool ConfirmSelectedRole()
         {
             DRRole[] roles = _roleDataTable != null ? _roleDataTable.GetAllDataRows() : null;