refactor(新手引导): 使用服务状态替代本地存储检查

将新手引导完成状态的检查从本地存储改为直接使用NoviceGuideService中的状态变量，提高代码一致性和可维护性

lib/data/services/novice_guide_service.dart

@@ -14,7 +14,7 @@ class NoviceGuideService extends GetxService {
   final BleService _bleService = BleService();
   StreamSubscription<dynamic>? _statusSubscription;
 
-  bool isHomeGuide = false;
+  bool isHomeGuide = false; //false代表未完成新手引导,true代表已经完成
   bool isAIGuide = false;
 
   RxBool isWakeup = false.obs;

lib/modules/home/controllers/home_controller.dart

@@ -177,7 +177,7 @@ class HomeController extends GetxController {
       bool wasConnected = _isFullyConnected.value;
       bool isNowConnected = hasClassicBluetooth && hasBleConnection;
 
-      bool isGuideCompleted = _storage.read('home_guide') ?? false;
+      //bool isGuideCompleted = _storage.read('home_guide') ?? false;
 
       if (isNowConnected && currentDevice == null) {
         isNowConnected = false;
@@ -197,7 +197,7 @@ class HomeController extends GetxController {
           // 移除了连接成功后的电池信息刷新
 
           // 连接成功后检查OTA升级
-          if (isGuideCompleted) {
+          if (noviceGuideService.isHomeGuide) {
             Future.delayed(const Duration(seconds: 2), () {
               _checkOtaUpgrade();
             });