chore: 完成多模块迭代优化与依赖更新

本次提交包含多项更新：
1. 更新file_picker依赖到11.0.0-ohos.1版本
2. 清理SecureStorage、Catcher2配置冗余代码
3. 优化鸿蒙系统下HomeWidget调用方式
4. 重构编辑器导航栏图标与页面路由引用
5. 修复边框样式、简化空值判断逻辑
6. 移除冗余系统UI样式配置
7. 新增共享组件导出与自适应返回按钮
8. 批量替换路由引用为app_routes
9. 标记过时通知服务并补充注释
10. 新增引导页扫一扫功能卡片
11. 完善沉浸式状态栏配置逻辑
12. 为大量页面添加统一自适应返回按钮

lib/features/file_transfer/collaboration/screen_share/pages/screen_share_page.dart

@@ -1,4 +1,4 @@
-// ============================================================
+// ============================================================
 // 闲言APP — 屏幕共享观看页面
 // 创建时间: 2026-05-14
 // 更新时间: 2026-05-20
@@ -18,6 +18,7 @@ import 'package:xianyan/core/theme/app_typography.dart';
 import 'package:xianyan/features/file_transfer/collaboration/screen_share/models/input_action.dart';
 import 'package:xianyan/features/file_transfer/collaboration/screen_share/providers/screen_share_provider.dart';
 import 'package:xianyan/features/file_transfer/collaboration/screen_share/services/in_app_screen_capture_service.dart';
+import '../../../../../shared/widgets/adaptive_back_button.dart';
 
 class ScreenSharePage extends ConsumerStatefulWidget {
   const ScreenSharePage({
@@ -63,6 +64,7 @@ class _ScreenSharePageState extends ConsumerState<ScreenSharePage> {
     return CupertinoPageScaffold(
       backgroundColor: ext.bgPrimary,
       navigationBar: CupertinoNavigationBar(
+        leading: const AdaptiveBackButton(),
         backgroundColor: ext.bgPrimary.withValues(alpha: 0.85),
         border: null,
         middle: Row(

lib/features/file_transfer/presentation/pages/device_pairing_page.dart

@@ -23,6 +23,7 @@ import 'package:xianyan/features/file_transfer/presentation/pages/pairing_code_t
 import 'package:xianyan/features/file_transfer/presentation/pages/qr_code_tab.dart';
 import 'package:xianyan/features/file_transfer/presentation/pages/radar_scan_tab.dart';
 import 'package:xianyan/features/file_transfer/services/degradation_manager.dart';
+import '../../../../shared/widgets/adaptive_back_button.dart';
 
 class DevicePairingPage extends ConsumerStatefulWidget {
   const DevicePairingPage({super.key});
@@ -59,6 +60,7 @@ class _DevicePairingPageState extends ConsumerState<DevicePairingPage>
     return CupertinoPageScaffold(
       backgroundColor: ext.bgPrimary,
       navigationBar: CupertinoNavigationBar(
+        leading: const AdaptiveBackButton(),
         backgroundColor: ext.bgPrimary.withValues(alpha: 0.85),
         border: null,
         middle: Row(

lib/features/file_transfer/presentation/pages/file_transfer_page.dart

@@ -23,6 +23,7 @@ import 'package:xianyan/features/file_transfer/presentation/pages/file_transfer_
 import 'package:xianyan/features/file_transfer/presentation/pages/file_transfer_my_devices_tab.dart';
 import 'package:xianyan/features/file_transfer/presentation/pages/file_transfer_records_tab.dart';
 import 'package:xianyan/features/file_transfer/presentation/pages/file_transfer_debug_panel.dart';
+import '../../../../shared/widgets/adaptive_back_button.dart';
 
 class FileTransferPage extends ConsumerStatefulWidget {
   final int initialTab;
@@ -73,6 +74,7 @@ class _FileTransferPageState extends ConsumerState<FileTransferPage>
     return CupertinoPageScaffold(
       backgroundColor: ext.bgPrimary,
       navigationBar: CupertinoNavigationBar(
+        leading: const AdaptiveBackButton(),
         backgroundColor: ext.bgPrimary.withValues(alpha: 0.85),
         border: null,
         middle: Row(

lib/features/file_transfer/presentation/pages/transfer_chat_page.dart

@@ -1,4 +1,4 @@
-// ============================================================
+// ============================================================
 // 闲言APP — 传输聊天页面
 // 创建时间: 2026-05-09
 // 更新时间: 2026-05-20
@@ -28,6 +28,7 @@ import 'package:xianyan/core/theme/app_typography.dart';
 import 'package:xianyan/core/utils/logger.dart';
 import 'package:xianyan/core/utils/platform_helper.dart';
 import 'package:xianyan/core/services/device/haptic_service.dart';
+import 'package:xianyan/shared/widgets/adaptive_back_button.dart';
 import 'package:xianyan/shared/widgets/app_toast.dart';
 import 'package:xianyan/features/file_transfer/models/models.dart';
 import 'package:xianyan/features/file_transfer/providers/providers.dart';
@@ -364,6 +365,7 @@ class _TransferChatPageState extends ConsumerState<TransferChatPage> {
     return CupertinoPageScaffold(
       backgroundColor: ext.bgPrimary,
       navigationBar: CupertinoNavigationBar(
+        leading: const AdaptiveBackButton(),
         backgroundColor: ext.bgPrimary.withValues(alpha: 0.85),
         border: null,
         middle: Row(

lib/features/file_transfer/presentation/pages/transfer_settings_page.dart

@@ -19,6 +19,7 @@ import 'package:xianyan/features/file_transfer/models/models.dart';
 import 'package:xianyan/features/file_transfer/presentation/pages/transfer_stats_page.dart';
 import 'package:xianyan/features/file_transfer/presentation/pages/file_transfer_page.dart';
 import 'package:xianyan/features/file_transfer/presentation/pages/file_transfer_debug_panel.dart';
+import '../../../../shared/widgets/adaptive_back_button.dart';
 
 class TransferSettingsPage extends ConsumerStatefulWidget {
   const TransferSettingsPage({super.key});
@@ -38,6 +39,7 @@ class _TransferSettingsPageState extends ConsumerState<TransferSettingsPage> {
     return CupertinoPageScaffold(
       backgroundColor: ext.bgPrimary,
       navigationBar: CupertinoNavigationBar(
+        leading: const AdaptiveBackButton(),
         backgroundColor: ext.bgPrimary.withValues(alpha: 0.85),
         border: null,
         middle: Text(
@@ -155,17 +157,25 @@ class _TransferSettingsPageState extends ConsumerState<TransferSettingsPage> {
                 ),
                 child: Row(
                   children: [
-                    Icon(CupertinoIcons.number, size: 20, color: ext.iconSecondary),
+                    Icon(
+                      CupertinoIcons.number,
+                      size: 20,
+                      color: ext.iconSecondary,
+                    ),
                     const SizedBox(width: AppSpacing.sm),
                     Expanded(
                       child: Text(
                         '加密算法',
-                        style: AppTypography.subhead.copyWith(color: ext.textPrimary),
+                        style: AppTypography.subhead.copyWith(
+                          color: ext.textPrimary,
+                        ),
                       ),
                     ),
                     Text(
                       settings.encryptionAlgorithm,
-                      style: AppTypography.caption1.copyWith(color: ext.textHint),
+                      style: AppTypography.caption1.copyWith(
+                        color: ext.textHint,
+                      ),
                     ),
                   ],
                 ),
@@ -242,7 +252,8 @@ class _TransferSettingsPageState extends ConsumerState<TransferSettingsPage> {
                 ext,
                 icon: CupertinoIcons.globe,
                 title: '信令服务器',
-                value: ref
+                value:
+                    ref
                         .read(transferProvider.notifier)
                         .pairingService
                         .signalingService
@@ -985,6 +996,7 @@ class _DebugPanelPageState extends ConsumerState<_DebugPanelPage>
     return CupertinoPageScaffold(
       backgroundColor: ext.bgPrimary,
       navigationBar: CupertinoNavigationBar(
+        leading: const AdaptiveBackButton(),
         backgroundColor: ext.bgPrimary.withValues(alpha: 0.85),
         border: null,
         middle: Text(

lib/features/file_transfer/presentation/pages/transfer_stats_page.dart

@@ -17,6 +17,7 @@ import 'package:xianyan/core/theme/app_typography.dart';
 import 'package:xianyan/core/theme/app_radius.dart';
 import 'package:xianyan/features/file_transfer/providers/transfer_stats_provider.dart';
 import 'package:xianyan/features/file_transfer/services/transfer_stats_service.dart';
+import '../../../../shared/widgets/adaptive_back_button.dart';
 
 class TransferStatsPage extends ConsumerStatefulWidget {
   const TransferStatsPage({super.key});
@@ -44,6 +45,7 @@ class _TransferStatsPageState extends ConsumerState<TransferStatsPage> {
     return CupertinoPageScaffold(
       backgroundColor: ext.bgPrimary,
       navigationBar: CupertinoNavigationBar(
+        leading: const AdaptiveBackButton(),
         backgroundColor: ext.bgPrimary.withValues(alpha: 0.85),
         border: null,
         middle: Text(