fix: 更新诸多bug

lib/app/modules/kr_order_status/controllers/kr_order_status_controller.dart

@@ -11,10 +11,10 @@ import '../../../utils/kr_common_util.dart';
 import '../../../localization/app_translations.dart';
 import '../../../utils/kr_log_util.dart';
 import 'package:flutter/foundation.dart';
-import '';
+import 'package:flutter/widgets.dart';
 
 /// 订单状态控制器（参考 Tauri 项目实现）
-class KROrderStatusController extends GetxController {
+class KROrderStatusController extends GetxController with WidgetsBindingObserver {
   /// API服务
   final KRSubscribeApi kr_subscribeApi = KRSubscribeApi();
   final KRSubscribeService kr_subscribeService = KRSubscribeService();
@@ -99,6 +99,9 @@ class KROrderStatusController extends GetxController {
     kr_checkPaymentStatus();
     // 启动轮询和倒计时
     kr_startCheckingPaymentStatus();
+    
+    // 添加生命周期监听
+    WidgetsBinding.instance.addObserver(this);
   }
 
   @override
@@ -114,9 +117,25 @@ class KROrderStatusController extends GetxController {
     }
     kr_timer?.cancel();
     kr_countdownTimer?.cancel();
+    // 移除生命周期监听
+    WidgetsBinding.instance.removeObserver(this);
     super.onClose();
   }
 
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    super.didChangeAppLifecycleState(state);
+    if (state == AppLifecycleState.resumed) {
+      if (kDebugMode) {
+        print('📱 App 恢复前台，立即更新倒计时和订单状态');
+      }
+      // 立即触发一次倒计时更新
+      kr_updateCountdown();
+      // 立即检查一次订单状态
+      kr_checkPaymentStatus();
+    }
+  }
+
   /// 开始检查支付状态（参考 Tauri 项目：5秒轮询一次）
   void kr_startCheckingPaymentStatus() {
     if (kDebugMode) {