refactor: 重构弹窗组件支持自定义图标组件

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

@@ -6,6 +6,7 @@ import '../../../../data/network/api_client.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/toast/toast.dart';
 import '../../../../shared/widgets/toast/toast_type.dart';
@@ -385,7 +386,7 @@ Future<void> _showMethodTip(BuildContext context, AppLocalizations l10n) {
         title: l10n.divinationMethodTipTitle,
         message:
             '${l10n.divinationMethodTipAuto}\n\n${l10n.divinationMethodTipManual}\n\n${l10n.divinationMethodTipRecommend}',
-        icon: Icons.lightbulb_outline_rounded,
+        iconWidget: const GuaIcon(),
         actions: [
           AppModalDialogAction(
             label: l10n.divinationIAcknowledge,