chore: 删除无用的项目配置和资源文件修改android key,修正godot4.3无法构建的问题

- 移除 .gitattributes 和 .gitignore 文件
- 删除 Asserts 目录下的棋盘和棋子基础资源文件

Main.cs

@@ -1,62 +0,0 @@
-using Godot;
-using System;
-
-public partial class Main : Node2D
-{
-
-	// public void ResizeChessboardToFitScreen()
-	// {
-	// 	var viewportSize = GetViewportRect().Size;
-	// 	var designSize = new Vector2(800, 800); // 设计时棋盘的尺寸，这里假设为正方形
-	// 	var screenAspectRatio = viewportSize.X / viewportSize.Y;
-	// 	var boardAspectRatio = designSize.X / designSize.Y;
-
-	// 	// 计算保持棋盘比例的缩放因子
-	// 	float scaleFactor;
-	// 	if (screenAspectRatio > boardAspectRatio) 
-	// 	{ 
-	// 		// 屏幕更宽，按高度缩放
-	// 		scaleFactor = viewportSize.Y / designSize.Y;
-	// 	} 
-	// 	else 
-	// 	{ 
-	// 		// 屏幕更高或相等，按宽度缩放
-	// 		scaleFactor = viewportSize.X / designSize.X;
-	// 	}
-
-	// 	// 应用缩放
-	// 	GetNode<Node2D>("Chessboard").Scale = new Vector2(scaleFactor, scaleFactor);
-	// }
-
-	// Called when the node enters the scene tree for the first time.
-	Global global = null;
-	public override void _Ready() {
-		// GetTree().Connect("screen_resized", ResizeChessboardToFitScreen);
-		// Button undo = GetNode<Button>("Undo");
-		// undo.Connect("pressed", (event) => {
-		// });
-
-		// ChessBoard board = GetNodeAndResource("res://res/ChessBoard.tscn");
-		// ChessBoard board1 = GetChild<ChessBoard>(0);
-		// board.Visible = false;
-		// board.Can
-		global = GetNode<Global>("/root/Global");
-	}
-
-    // Called every frame. 'delta' is the elapsed time since the previous frame.
-    public override void _Process(double delta) {
-	}
-
-	private void GoToSignlePlayer() {
-		// global.GotoScene("res://Scenes/SinglePlayer.tscn");
-		global.GotoScene("res://Scenes/ChessGame.tscn");
-	}
-
-	private void GoToMultiPlayer() {
-		// global.GotoScene("res://Scenes/MultiPlayer.tscn");
-    	global.GotoScene("res://Scenes/Menu.tscn");
-	}
-
-	private void goToMenu() {
-	}
-}