fix(client): 联系/购买渠道卡点击外部打开(修空 onTap)+ 桌面账户子导航复现测试

- channel_launch: @→t.me / 邮箱→mailto / 域名→https,外部打开
- 联系页(桌面)/联系&兑换子页(移动)渠道卡接上 onTap
- account_desktop_nav_test: 证明桌面设置/兑换/联系/订单导航正常(231 全绿)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013nMthbVEmQquxBRKb9Fj8u

client/ios/Podfile.lock

@@ -2,20 +2,26 @@ PODS:
   - Flutter (1.0.0)
   - flutter_secure_storage (6.0.0):
     - Flutter
+  - open_filex (0.0.2):
+    - Flutter
 
 DEPENDENCIES:
   - Flutter (from `Flutter`)
   - flutter_secure_storage (from `.symlinks/plugins/flutter_secure_storage/ios`)
+  - open_filex (from `.symlinks/plugins/open_filex/ios`)
 
 EXTERNAL SOURCES:
   Flutter:
     :path: Flutter
   flutter_secure_storage:
     :path: ".symlinks/plugins/flutter_secure_storage/ios"
+  open_filex:
+    :path: ".symlinks/plugins/open_filex/ios"
 
 SPEC CHECKSUMS:
   Flutter: cabc95a1d2626b1b06e7179b784ebcf0c0cde467
   flutter_secure_storage: 1ed9476fba7e7a782b22888f956cce43e2c62f13
+  open_filex: 432f3cd11432da3e39f47fcc0df2b1603854eff1
 
 PODFILE CHECKSUM: 953f21eefd3c2835779b3cd836901e88e3270439
 

client/lib/screens/contact_page.dart

@@ -7,6 +7,7 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 import '../l10n/app_text.dart';
 import '../pangolin_theme.dart';
+import '../services/channel_launch.dart';
 import '../state/app_providers.dart';
 import '../widgets/pangolin_icons.dart';
 
@@ -50,7 +51,9 @@ class _ChannelCard extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final c = context.pangolin;
-    return Container(
+    return GestureDetector(
+      onTap: () => launchChannel(channel.sub),
+      child: Container(
       padding: const EdgeInsets.all(14),
       decoration: BoxDecoration(
         color: c.surface,
@@ -77,7 +80,7 @@ class _ChannelCard extends StatelessWidget {
         ),
         Icon(PangolinIcons.chevronRight, size: 18, color: c.fg3),
       ]),
-    );
+    ));
   }
 }
 

client/lib/services/channel_launch.dart

@@ -0,0 +1,21 @@
+// channel_launch.dart — 联系/购买渠道点击:按 handle(sub)推导 URL 并外部打开。
+//   @xxx        → https://t.me/xxx (Telegram)
+//   a@b.com     → mailto:a@b.com
+//   x.yanmei... → https://x.yanmei...
+import 'package:url_launcher/url_launcher.dart';
+
+String channelUrl(String sub) {
+  if (sub.startsWith('@')) return 'https://t.me/${sub.substring(1)}';
+  if (sub.contains('@')) return 'mailto:$sub';
+  return 'https://$sub';
+}
+
+/// 点击渠道卡:外部打开对应 URL。失败静默(不炸 UI)。
+Future<void> launchChannel(String sub) async {
+  final uri = Uri.parse(channelUrl(sub));
+  try {
+    if (await canLaunchUrl(uri)) {
+      await launchUrl(uri, mode: LaunchMode.externalApplication);
+    }
+  } catch (_) {}
+}

client/lib/widgets/account_screens.dart

@@ -10,6 +10,7 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import '../l10n/app_text.dart';
 import '../models/device.dart';
 import '../pangolin_theme.dart';
+import '../services/channel_launch.dart';
 import '../screens/settings_page.dart';
 import '../services/device_identity.dart';
 import 'adaptive_menu.dart';
@@ -429,7 +430,7 @@ class _RedeemScreenState extends ConsumerState<RedeemScreen> {
   Widget _channel(PangolinScheme c, IconData icon, String name, String sub, bool accent) {
     return InkWell(
       borderRadius: BorderRadius.circular(PangolinRadius.lg),
-      onTap: () {},
+      onTap: () => launchChannel(sub),
       child: Container(
         padding: const EdgeInsets.all(14),
         decoration: BoxDecoration(color: accent ? c.accentSubtle : c.surface, borderRadius: BorderRadius.circular(PangolinRadius.lg), border: Border.all(color: accent ? c.accentBorder : c.border), boxShadow: PangolinShadow.sm),
@@ -486,7 +487,7 @@ class ContactScreen extends StatelessWidget {
   Widget _contact(PangolinScheme c, IconData icon, String name, String sub, bool accent) {
     return InkWell(
       borderRadius: BorderRadius.circular(PangolinRadius.lg),
-      onTap: () {},
+      onTap: () => launchChannel(sub),
       child: Container(
         padding: const EdgeInsets.all(14),
         decoration: BoxDecoration(color: accent ? c.accentSubtle : c.surface, borderRadius: BorderRadius.circular(PangolinRadius.lg), border: Border.all(color: accent ? c.accentBorder : c.border), boxShadow: PangolinShadow.sm),

client/test/widget/account_desktop_nav_test.dart

@@ -0,0 +1,106 @@
+// account_desktop_nav_test.dart — 复现 Windows/桌面账户页子导航点击是否切 navView。
+//
+// 用 debugDefaultTargetPlatformOverride=windows + 宽 surface 让 context.formFactor==desktop，
+// 渲染 DesktopShell 账户页，点每个 _NavRow，断言 navViewProvider 切到对应子视图。
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pangolin_vpn/bridge/vpn_bridge_mock.dart';
+import 'package:pangolin_vpn/bridge/vpn_bridge_provider.dart';
+import 'package:pangolin_vpn/l10n/app_text.dart';
+import 'package:pangolin_vpn/l10n/strings_zh.dart';
+import 'package:pangolin_vpn/pangolin_theme.dart';
+import 'package:pangolin_vpn/screens/account_page.dart';
+import 'package:pangolin_vpn/services/token_store.dart';
+import 'package:pangolin_vpn/shell/desktop_shell.dart';
+import 'package:pangolin_vpn/shell/home_shell.dart';
+import 'package:pangolin_vpn/state/app_providers.dart';
+import 'package:pangolin_vpn/state/auth_provider.dart';
+import 'package:pangolin_vpn/state/navigation_provider.dart';
+
+import '../helpers/harness.dart';
+
+final AppText t = StringsZh();
+
+class _NullTokenStore implements TokenStore {
+  const _NullTokenStore();
+  @override
+  Future<void> saveTokens({required String access, required String refresh}) async {}
+  @override
+  Future<String?> loadAccessToken() async => null;
+  @override
+  Future<String?> loadRefreshToken() async => null;
+  @override
+  Future<void> clear() async {}
+  @override
+  Future<void> markOnboarded() async {}
+  @override
+  Future<bool> isOnboarded() async => true;
+  @override
+  Future<void> saveLastEmail(String email) async {}
+  @override
+  Future<String?> loadLastEmail() async => null;
+}
+
+/// 在桌面态渲染 DesktopShell（起始 account 视图），点账户卡里 [label] 那一行，
+/// 返回点击后的 navViewProvider 值。
+Future<NavView> _tapRow(WidgetTester tester, String label) async {
+  debugDefaultTargetPlatformOverride = TargetPlatform.windows;
+  tester.view.physicalSize = const Size(920, 1400);
+  tester.view.devicePixelRatio = 1.0;
+  addTearDown(tester.view.resetPhysicalSize);
+  addTearDown(tester.view.resetDevicePixelRatio);
+  try {
+    await tester.pumpWidget(ProviderScope(
+      overrides: [
+        tokenStoreProvider.overrideWithValue(const _NullTokenStore()),
+        vpnBridgeProvider.overrideWithValue(VpnBridgeMock()),
+        appTextProvider.overrideWithValue(t),
+        navViewProvider.overrideWith((ref) => NavView.account),
+      ],
+      child: MaterialApp(
+        debugShowCheckedModeBanner: false,
+        theme: PangolinTheme.light,
+        home: const HomeShell(),
+      ),
+    ));
+    await tester.pumpAndSettle();
+
+    expect(find.byType(DesktopShell), findsOneWidget);
+    expect(find.byType(AccountPage), findsOneWidget);
+
+    // 侧栏与账户卡可能共享同一文案（设置/联系我们），故限定在 AccountPage 内。
+    final row = find.descendant(of: find.byType(AccountPage), matching: find.text(label));
+    expect(row, findsOneWidget, reason: '账户卡里应有且仅有一行「$label」');
+
+    final container = ProviderScope.containerOf(tester.element(find.byType(HomeShell)));
+    expect(container.read(navViewProvider), NavView.account);
+
+    await tester.tap(row);
+    await tester.pump();
+    return container.read(navViewProvider);
+  } finally {
+    debugDefaultTargetPlatformOverride = null;
+  }
+}
+
+void main() {
+  setUpAll(disableGoogleFontsFetching);
+
+  testWidgets('desktop account -> settings', (tester) async {
+    expect(await _tapRow(tester, t.settingsTitle), NavView.settings);
+  });
+  testWidgets('desktop account -> redeem', (tester) async {
+    expect(await _tapRow(tester, t.redeemEntry), NavView.redeem);
+  });
+  testWidgets('desktop account -> contact', (tester) async {
+    expect(await _tapRow(tester, t.contactEntry), NavView.contact);
+  });
+  testWidgets('desktop account -> orders', (tester) async {
+    expect(await _tapRow(tester, t.ordersTitle), NavView.orders);
+  });
+  testWidgets('desktop account -> devices', (tester) async {
+    expect(await _tapRow(tester, t.myDevices), NavView.devices);
+  });
+}