feat(client): iOS App Store 合规——授权页隐藏外部购买 UI，补中性联系客服卡

苹果 3.1.1：iOS 包不渲染在线购买卡与套餐价格链接；兑换券保留（3.1.3(b)），
新增「联系客服」卡（mailto:support@51yanmei.com，无购买引导字样）。
其余平台零改动；开关 hideExternalPurchaseUi 供设备上限弹窗等复用。

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

client/lib/core/config/store_compliance.dart

@@ -0,0 +1,20 @@
+// App Store 合规开关（苹果审核指南 3.1.1 / 3.1.3(b)）。
+//
+// iOS 包内不得出现第三方支付与任何外部购买引导（在线购买卡、套餐价格
+// 链接、升级按钮、"去官网购买"类文案）；兑换码激活与中性客服入口不受限
+// （多平台服务条款：允许使用在别处获得的授权）。
+// 其余平台（macOS/Windows/Android/Web 均不走 App Store 分发）不受影响。
+import 'dart:io' show Platform;
+
+import 'package:flutter/foundation.dart' show kIsWeb, visibleForTesting;
+
+/// 测试注入：widget/golden 测试跑在 host 上，借此模拟 iOS 形态。
+@visibleForTesting
+bool? debugForceHideExternalPurchaseUi;
+
+/// 为真时隐藏一切外部购买 UI（iOS App Store 包）。
+bool get hideExternalPurchaseUi =>
+    debugForceHideExternalPurchaseUi ?? (!kIsWeb && Platform.isIOS);
+
+/// 客服邮箱（授权管理「联系客服」卡、异常兜底提示等处使用）。
+const String supportEmail = 'support@51yanmei.com';

client/lib/screens/settings/license_panel.dart

@@ -5,8 +5,11 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:intl/intl.dart';
 
+import 'package:url_launcher/url_launcher.dart';
+
 import '../../core/auth/auth_state.dart';
 import '../../core/config/license_copy.dart';
+import '../../core/config/store_compliance.dart';
 import '../../core/utils/web_launch.dart';
 import '../../core/responsive/responsive.dart';
 import '../../core/theme/app_dims.g.dart';
@@ -98,32 +101,34 @@ class _LicensePanelState extends ConsumerState<LicensePanel> {
         ),
         const SizedBox(height: 16),
         // ── 卡2：在线购买 / 续费（后端 purchase 接口 admin only，
-        //    非管理员引导看官网价格页）──
-        if (isAdmin)
-          const SettingsCard(
-            title: '在线购买 / 续费',
-            desc: '选择套餐支付宝支付，到账后授权自动续期',
-            child: PurchaseCard(),
-          )
-        else
-          SettingsCard(
-            title: '在线购买 / 续费',
-            desc: '在线购买仅门店管理员可操作',
-            child: Row(children: [
-              Text('在线购买请联系门店管理员 · ',
-                  style: TextStyle(fontSize: AppDims.fsSm, color: t.muted)),
-              InkWell(
-                // 免登跳官网（一次性换票 SSO）：浏览器落地即已登录，可直接购买
-                onTap: () => launchAuthedWebPath(ref, '/#pricing'),
-                child: Text('查看套餐价格 →',
-                    style: TextStyle(
-                        fontSize: AppDims.fsSm,
-                        fontWeight: FontWeight.w600,
-                        color: t.primary)),
-              ),
-            ]),
-          ),
-        const SizedBox(height: 16),
+        //    非管理员引导看官网价格页）。iOS App Store 包整卡不渲染 ──
+        if (!hideExternalPurchaseUi) ...[
+          if (isAdmin)
+            const SettingsCard(
+              title: '在线购买 / 续费',
+              desc: '选择套餐支付宝支付，到账后授权自动续期',
+              child: PurchaseCard(),
+            )
+          else
+            SettingsCard(
+              title: '在线购买 / 续费',
+              desc: '在线购买仅门店管理员可操作',
+              child: Row(children: [
+                Text('在线购买请联系门店管理员 · ',
+                    style: TextStyle(fontSize: AppDims.fsSm, color: t.muted)),
+                InkWell(
+                  // 免登跳官网（一次性换票 SSO）：浏览器落地即已登录，可直接购买
+                  onTap: () => launchAuthedWebPath(ref, '/#pricing'),
+                  child: Text('查看套餐价格 →',
+                      style: TextStyle(
+                          fontSize: AppDims.fsSm,
+                          fontWeight: FontWeight.w600,
+                          color: t.primary)),
+                ),
+              ]),
+            ),
+          const SizedBox(height: 16),
+        ],
         // ── 卡3：兑换券（原型 .redeem：input + 按钮，max 520）──
         SettingsCard(
           title: '兑换券',
@@ -175,6 +180,29 @@ class _LicensePanelState extends ConsumerState<LicensePanel> {
             ],
           ),
         ),
+        // ── 卡5：联系客服（仅 iOS 形态，补位购买卡；措辞保持中性，
+        //    不得出现购买/续费引导字样——苹果 3.1.1 红线）──
+        if (hideExternalPurchaseUi) ...[
+          const SizedBox(height: 16),
+          SettingsCard(
+            title: '联系客服',
+            desc: '授权与使用问题可通过邮件联系我们',
+            child: Row(children: [
+              Text('客服邮箱 · ',
+                  style: TextStyle(fontSize: AppDims.fsSm, color: t.muted)),
+              InkWell(
+                onTap: () =>
+                    launchUrl(Uri(scheme: 'mailto', path: supportEmail)),
+                child: Text(supportEmail,
+                    style: TextStyle(
+                        fontSize: AppDims.fsSm,
+                        fontWeight: FontWeight.w600,
+                        fontFamily: AppFonts.mono,
+                        color: t.primary)),
+              ),
+            ]),
+          ),
+        ],
       ],
     );
   }

client/test/license_panel_ios_test.dart

@@ -0,0 +1,77 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:jiu_client/core/auth/auth_state.dart';
+import 'package:jiu_client/core/config/store_compliance.dart';
+import 'package:jiu_client/core/theme/themes.dart';
+import 'package:jiu_client/providers/license_provider.dart';
+import 'package:jiu_client/screens/settings/license_panel.dart';
+
+/// iOS App Store 合规形态（苹果 3.1.1）：授权管理页隐藏一切外部购买 UI，
+/// 补位中性「联系客服」卡；其余平台购买卡照旧、无客服卡。
+
+class _FakeAuth extends AuthNotifier {
+  _FakeAuth(String role) {
+    state = AuthState(
+      user: AuthUser(
+          accessToken: 't',
+          refreshToken: 'r',
+          id: 1,
+          username: 'wang',
+          realName: '王经理',
+          shopNo: 'S001',
+          shopId: 1,
+          role: role),
+    );
+  }
+}
+
+class _FakeLicense extends LicenseNotifier {
+  @override
+  Future<LicenseInfo?> build() async => LicenseInfo(
+        id: 1,
+        type: 'annual',
+        isActive: true,
+        maxDevices: 2,
+        phase: 'active',
+        expiresAt: DateTime.now().add(const Duration(days: 100)),
+      );
+}
+
+Widget _panel({required String role}) => ProviderScope(
+      overrides: [
+        authStateProvider.overrideWith((ref) => _FakeAuth(role)),
+        licenseProvider.overrideWith(() => _FakeLicense()),
+      ],
+      child: MaterialApp(
+        theme: buildTheme('a'),
+        home: const Scaffold(
+          body: SingleChildScrollView(child: LicensePanel()),
+        ),
+      ),
+    );
+
+void main() {
+  tearDown(() => debugForceHideExternalPurchaseUi = null);
+
+  testWidgets('iOS 形态：购买卡与价格链接消失，出现联系客服卡', (tester) async {
+    debugForceHideExternalPurchaseUi = true;
+    await tester.pumpWidget(_panel(role: 'operator'));
+    await tester.pumpAndSettle();
+
+    expect(find.text('在线购买 / 续费'), findsNothing);
+    expect(find.textContaining('查看套餐价格'), findsNothing);
+    expect(find.text('联系客服'), findsOneWidget);
+    expect(find.text(supportEmail), findsOneWidget);
+  });
+
+  testWidgets('非 iOS：购买卡照旧，无联系客服卡', (tester) async {
+    debugForceHideExternalPurchaseUi = false;
+    await tester.pumpWidget(_panel(role: 'operator'));
+    await tester.pumpAndSettle();
+
+    expect(find.text('在线购买 / 续费'), findsOneWidget);
+    expect(find.textContaining('查看套餐价格'), findsOneWidget);
+    expect(find.text('联系客服'), findsNothing);
+  });
+}