refactor: 重构弹窗组件支持自定义图标组件

apps/lib/features/divination/presentation/screens/auto_divination_screen.dart

@@ -10,6 +10,7 @@ import 'package:vibration/vibration.dart';
 import '../../../../l10n/app_localizations.dart';
 import '../../../../shared/theme/design_tokens.dart';
 import '../../../../shared/widgets/app_modal_dialog.dart';
+import '../../../../shared/widgets/gua_icon.dart';
 import '../../../../shared/widgets/divination/divination_shared_widgets.dart';
 import '../../../../shared/widgets/divination/divination_terms.dart';
 import '../../../../shared/widgets/divination/yao_legend.dart';
@@ -253,7 +254,7 @@ class _AutoDivinationScreenState extends State<AutoDivinationScreen>
             points.runCost,
             points.availableBalance,
           ),
-          icon: Icons.auto_awesome_rounded,
+          iconWidget: const GuaIcon(),
           actions: [
             AppModalDialogAction(
               label: l10n.cancel,
@@ -290,12 +291,11 @@ class _AutoDivinationScreenState extends State<AutoDivinationScreen>
         ),
       );
     } finally {
-      if (!mounted) {
-        return;
+      if (mounted) {
+        setState(() {
+          _submitting = false;
+        });
       }
-      setState(() {
-        _submitting = false;
-      });
     }
   }