build(project): 更新项目配置和代码结构

- 升级 Godot.NET.Sdk 版本至 4.4.0
- 更新场景文件中的资源引用方式
- 调整部分代码逻辑和数据结构
- 更新项目配置文件

Scripts/Src/ChineseChess/CCPiece.cs

@@ -75,11 +75,11 @@ public class CCPiece : AbstractPiece {
         return board.IsPosOutOfRange(Local2Global(pos));
     }
 
-    protected CCPiece? GetRecursivePieceLocal(Vector2I origin, Vector2I pos) {
+    protected (CCPiece?, Vector2I) GetRecursivePieceLocal(Vector2I origin, Vector2I pos) {
         Vector2I with = origin + pos;
         while (!IsPosOutOfRangeLocal(with) && GetCCPieceLocal(with) == null) {
             with += pos;
         }
-        return GetCCPieceLocal(with);
+        return (GetCCPieceLocal(with), with);
     }
 }