fix: fix bugs

packages/sample-game/src/scenes/GameScene.ts

@@ -83,24 +83,14 @@ export class GameScene extends ReactiveScene<TicTacToeState> {
   }
 
   private setupInput(): void {
-    const scene = this;
-    const activePromptRef = {
-      get current() { return scene.activePrompt; }
-    };
-
     this.inputMapper = createInputMapper(
       this,
       this.commands,
-      activePromptRef,
+      { current: null }, // 不再需要，保留以兼容接口
       (cmd: string) => {
-        const activePrompt = this.activePrompt;
-        if (!activePrompt) return 'No active prompt';
-        const error = activePrompt.tryCommit(cmd);
-        if (error === null) {
-          this.activePrompt = null;
-          this.promptHandler.start();
-        }
-        return error;
+        // 使用 PromptHandler.submit() 而不是直接 tryCommit
+        // 这样会自动处理没有活跃 prompt 时的排队逻辑
+        return this.promptHandler.submit(cmd);
       }
     );