feat(game): 优化FPS显示功能的线程管理

- 添加fpsThread成员变量用于管理FPS监控线程
- 将FPS获取逻辑从IO调度器改为独立线程执行
- 在while循环中添加线程中断检查防止内存泄漏
- 设置线程名称为"FCL FPS Thread"便于调试
- 正确启动和中断FPS线程确保资源释放
- 添加空指针检查避免异常情况

Author: ShirosakiMio

FCL/src/main/java/com/tungsten/fcl/control/GameMenu.java

@@ -139,6 +139,7 @@ public class GameMenu implements MenuCallback, View.OnClickListener {
     private TouchController touchController;
 
     private boolean gamepadDisabled = false;
+    private Thread fpsThread;
 
     public void setMenuView(MenuView menuView) {
         this.menuView = menuView;
@@ -441,17 +442,23 @@ private void initRightMenu() {
                 return;
             }
             if (isChecked) {
-                Schedulers.io().execute(() -> {
+                fpsThread = new Thread(() -> {
                     FCLBridge.getFps();
-                    while (showFps.isChecked()) {
+                    while (showFps.isChecked() && !Thread.currentThread().isInterrupted()) {
                         Schedulers.androidUIThread().execute(() -> fpsText.setText("FPS:" + FCLBridge.getFps()));
                         try {
                             Thread.sleep(1000);
                         } catch (InterruptedException ignored) {
                         }
                     }
                 });
+                fpsThread.setName("FCL FPS Thread");
+                fpsThread.start();
             } else {
+                if (fpsThread != null) {
+                    fpsThread.interrupt();
+                    fpsThread = null;
+                }
                 fpsText.setText("");
             }
         });