feat: 重构棋盘逻辑和游戏流程,将引擎版本提升至4.3

- 重构了 VirtualBoard 类，优化了棋盘操作和事件处理
- 重写了 ChessPiece 类，增加了事件处理和虚拟棋子逻辑
- 更新了 ChessGame 控制器，增加了结束回合功能和对话框
- 调整了场景布局和资源引用
- 清理了冗余代码和注释

Scripts/Utilities/MoveRecords.cs

@@ -1,23 +1,25 @@
+// using System.Numerics;
+using Godot;
+
 using System.Collections.Generic;
 using System;
-using Godot;
-using System.Linq;
 
-public class MoveRecords {
+public class MoveRecords<T> {
     private readonly LinkedList<MoveRecord> records = new LinkedList<MoveRecord>(); // 使用队列替换栈
     private readonly int maxRecords; // 记录上限
-    private Action<Node, Node, Vector2, Vector2> onAddRecordCallback; // 添加记录时的回调
-    private Action<Node, Node, Vector2, Vector2> onUndoRecordCallback; // 撤销记录时的回调
+    private Action<T, T, Vector2, Vector2> onAddRecordCallback; // 添加记录时的回调
+    private Action<T, T, Vector2, Vector2> onUndoRecordCallback; // 撤销记录时的回调
+    
     public MoveRecords(
-    Action<Node, Node, Vector2, Vector2> onAddRecordCallback = null,
-    Action<Node, Node, Vector2, Vector2> onUndoRecordCallback = null,
+    Action<T, T, Vector2, Vector2> onAddRecordCallback = null,
+    Action<T, T, Vector2, Vector2> onUndoRecordCallback = null,
     int maxRecords = 32) {
         this.maxRecords = maxRecords;
         this.onAddRecordCallback = onAddRecordCallback;
         this.onUndoRecordCallback = onUndoRecordCallback;
     }
 
-    public void AddRecord(Node newNode, Node oldNode, Vector2 newPos, Vector2 oldPos) {
+    public void AddRecord(T newNode, T oldNode, Vector2 newPos, Vector2 oldPos) {
         // 达到记录上限时，移除最远的记录（队首元素）
         if (records.Count >= maxRecords) {
             records.RemoveFirst();
@@ -42,16 +44,16 @@ public class MoveRecords {
     }
 
     private class MoveRecord {
-        public Node NewNode { get; }
-        public Node OldNode { get; }
+        public T NewNode { get; }
+        public T OldNode { get; }
         public Vector2 NewPos { get; }
         public Vector2 OldPos { get; }
 
-        public MoveRecord(Node newNode, Node oldNode, Vector2 newPos, Vector2 oldPos) {
-            this.NewNode = newNode;
-            this.OldNode = oldNode;
-            this.OldPos = oldPos;
-            this.NewPos = newPos;
+        public MoveRecord(T newNode, T oldNode, Vector2 newPos, Vector2 oldPos) {
+            NewNode = newNode;
+            OldNode = oldNode;
+            OldPos = oldPos;
+            NewPos = newPos;
         }
     }
 }