feat: 新增语音唤醒

唤醒的逻辑跟长按的逻辑不一样，不能像之前那样长按图标来录音，结束长按来结束录音

lib/widgets/chat_popup.dart

@@ -1,4 +1,6 @@
+import 'dart:async';
 import 'dart:ui';
+import 'package:ai_chat_assistant/manager.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../pages/full_screen.dart';
@@ -30,6 +32,7 @@ class _ChatPopupState extends State<ChatPopup> with SingleTickerProviderStateMix
   final double _iconSizeDefault = 80.0;
   bool _isShowingPopup = false;
   late AnimationController _partScreenAnimationController;
+  StreamSubscription? _wakeWordSubscription;
 
   @override
   void initState() {
@@ -38,11 +41,21 @@ class _ChatPopupState extends State<ChatPopup> with SingleTickerProviderStateMix
       duration: const Duration(milliseconds: 250),
       vsync: this,
     );
+
+    // 订阅唤醒词事件
+    _wakeWordSubscription = AIChatAssistantManager.instance.onWakeWordDetected.listen((_) async {
+      // 在这里处理唤醒事件，例如显示聊天窗口
+      debugPrint("唤醒词被检测到，执行UI操作！");
+      final messageService = MessageService.instance;
+      _insertOverlay();
+      await messageService.startVoiceInput();
+    });
   }
 
   @override
   void dispose() {
     _partScreenAnimationController.dispose();
+    _wakeWordSubscription?.cancel();
     super.dispose();
   }