feat(client): 在线购买改为设置页内联卡片，左侧菜单改「授权管理」

- purchase_dialog.dart → purchase_card.dart：弹窗改 PurchaseCard 内联卡片，
  三阶段（选套餐/待支付/成功）操作按钮改卡片内右对齐，新增「重新选择」回退
- 设置授权面板拆两张卡：授权管理（到期统计+兑换券+降级说明）+
  在线购买/续费（仅管理员可见，PurchaseCard 内联）
- 移除统计条与移动端的弹窗入口按钮

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JJ1g8XV1YhhmHRzhwWEW7o

client/lib/screens/settings/purchase_card.dart

@@ -1,6 +1,6 @@
-// screens/settings/purchase_dialog.dart — App 内在线购买/续费授权。
-// 流程：套餐选择（标准/高级 × 月付/年付）→ POST /license/purchase 下单 →
-// 外部浏览器打开 pay 收银台（移动端由系统拉起支付宝 App）→ 本弹窗轮询
+// screens/settings/purchase_card.dart — App 内在线购买/续费授权（内联卡片）。
+// 流程：套餐选择（标准/首月特惠/高级，非特惠可切月付/年付）→ POST /license/purchase
+// 下单 → 外部浏览器打开 pay 收银台（移动端由系统拉起支付宝 App）→ 本卡片轮询
 // GET /license/purchase/:otn，webhook 续期到账后自动刷新授权并展示新到期日。
 // 价格仅展示，实付以 pay 侧套餐表为准（下单响应回传 amount）。
 import 'dart:async';
@@ -12,35 +12,25 @@ import 'package:lucide_icons_flutter/lucide_icons.dart';
 import 'package:url_launcher/url_launcher.dart';
 
 import '../../core/config/license_plans.dart';
-import '../../core/responsive/responsive.dart';
 import '../../core/theme/app_dims.g.dart';
 import '../../core/theme/app_fonts.dart';
 import '../../core/theme/app_tokens.dart';
 import '../../core/theme/context_tokens.dart';
-import '../../core/utils/dialog_util.dart';
-import '../../models/license.dart';
 import '../../providers/license_provider.dart';
 import '../../widgets/ds/ds_atoms.dart';
 import '../../widgets/ds/ds_toast.dart';
 
-Future<void> showPurchaseDialog(BuildContext context) {
-  return showAppDialog(
-    context: context,
-    barrierDismissible: false,
-    builder: (_) => const _PurchaseDialog(),
-  );
-}
-
 enum _Phase { pick, waiting, success }
 
-class _PurchaseDialog extends ConsumerStatefulWidget {
-  const _PurchaseDialog();
+/// 在线购买/续费卡片内容（由设置页包进 _SettingsCard，仅管理员可见）。
+class PurchaseCard extends ConsumerStatefulWidget {
+  const PurchaseCard({super.key});
 
   @override
-  ConsumerState<_PurchaseDialog> createState() => _PurchaseDialogState();
+  ConsumerState<PurchaseCard> createState() => _PurchaseCardState();
 }
 
-class _PurchaseDialogState extends ConsumerState<_PurchaseDialog> {
+class _PurchaseCardState extends ConsumerState<PurchaseCard> {
   _Phase _phase = _Phase.pick;
   int _tabIdx = 0; // 0=标准版 1=首月特惠 2=高级版
   int _cycleIdx = 0; // 0=年付 1=月付
@@ -77,8 +67,9 @@ class _PurchaseDialogState extends ConsumerState<_PurchaseDialog> {
   Future<void> _submit() async {
     setState(() => _submitting = true);
     try {
-      final order =
-          await ref.read(licenseRepositoryProvider).createPurchase(_plan.bizCode);
+      final order = await ref
+          .read(licenseRepositoryProvider)
+          .createPurchase(_plan.bizCode);
       // 外部浏览器打开收银台：桌面端进网页支付，移动端由系统浏览器拉起支付宝
       await launchUrl(Uri.parse(order.payUrl),
           mode: LaunchMode.externalApplication);
@@ -88,8 +79,7 @@ class _PurchaseDialogState extends ConsumerState<_PurchaseDialog> {
         _phase = _Phase.waiting;
         _submitting = false;
       });
-      _pollTimer =
-          Timer.periodic(const Duration(seconds: 3), (_) => _poll());
+      _pollTimer = Timer.periodic(const Duration(seconds: 3), (_) => _poll());
     } catch (e) {
       if (!mounted) return;
       setState(() => _submitting = false);
@@ -102,8 +92,9 @@ class _PurchaseDialogState extends ConsumerState<_PurchaseDialog> {
     if (order == null || _checking) return;
     _checking = true;
     try {
-      final st =
-          await ref.read(licenseRepositoryProvider).purchaseStatus(order.outTradeNo);
+      final st = await ref
+          .read(licenseRepositoryProvider)
+          .purchaseStatus(order.outTradeNo);
       if (!mounted) return;
       if (st.isPaid) {
         _pollTimer?.cancel();
@@ -124,49 +115,26 @@ class _PurchaseDialogState extends ConsumerState<_PurchaseDialog> {
     }
   }
 
+  /// 回到套餐选择（仅停止本地轮询，不影响已支付订单到账）。
+  void _backToPick() {
+    _pollTimer?.cancel();
+    setState(() {
+      _order = null;
+      _newExpiresAt = null;
+      _phase = _Phase.pick;
+    });
+  }
+
   @override
   Widget build(BuildContext context) {
     final t = context.tokens;
-    return AlertDialog(
-      title: Text(switch (_phase) {
-        _Phase.pick => '在线购买 / 续费',
-        _Phase.waiting => '等待支付',
-        _Phase.success => '支付成功',
-      }),
-      content: SizedBox(
-        width: context.dialogWidth(460),
-        child: switch (_phase) {
-          _Phase.pick => _buildPick(t),
-          _Phase.waiting => _buildWaiting(t),
-          _Phase.success => _buildSuccess(t),
-        },
-      ),
-      actions: switch (_phase) {
-        _Phase.pick => [
-            DsButton('取消',
-                onPressed:
-                    _submitting ? null : () => Navigator.of(context).pop()),
-            DsButton(
-                _submitting
-                    ? '正在创建订单…'
-                    : _isPromo && _promoUsed
-                        ? '本店已享受过'
-                        : '提交订单 · ¥${_fmt(_plan.price)}',
-                variant: DsBtnVariant.primary,
-                onPressed:
-                    _submitting || (_isPromo && _promoUsed) ? null : _submit),
-          ],
-        _Phase.waiting => [
-            DsButton('稍后再说', onPressed: () => Navigator.of(context).pop()),
-            DsButton('我已完成支付',
-                variant: DsBtnVariant.primary,
-                onPressed: () => _poll(manual: true)),
-          ],
-        _Phase.success => [
-            DsButton('完成',
-                variant: DsBtnVariant.primary,
-                onPressed: () => Navigator.of(context).pop()),
-          ],
+    // 与授权卡兑换区一致收窄内容宽度，避免宽屏卡片内元素拉伸过长
+    return ConstrainedBox(
+      constraints: const BoxConstraints(maxWidth: 560),
+      child: switch (_phase) {
+        _Phase.pick => _buildPick(t),
+        _Phase.waiting => _buildWaiting(t),
+        _Phase.success => _buildSuccess(t),
       },
     );
   }
@@ -291,6 +259,19 @@ class _PurchaseDialogState extends ConsumerState<_PurchaseDialog> {
         const SizedBox(height: 6),
         Text('到期时间自动叠加，未到期续费不吃亏 · 支付宝支付',
             style: TextStyle(fontSize: AppDims.fsXs, color: t.faint)),
+        const SizedBox(height: 12),
+        Align(
+          alignment: Alignment.centerRight,
+          child: DsButton(
+              _submitting
+                  ? '正在创建订单…'
+                  : _isPromo && _promoUsed
+                      ? '本店已享受过'
+                      : '提交订单 · ¥${_fmt(_plan.price)}',
+              variant: DsBtnVariant.primary,
+              onPressed:
+                  _submitting || (_isPromo && _promoUsed) ? null : _submit),
+        ),
       ],
     );
   }
@@ -308,7 +289,7 @@ class _PurchaseDialogState extends ConsumerState<_PurchaseDialog> {
           ),
           const SizedBox(width: 12),
           Expanded(
-            child: Text('已在浏览器打开支付宝收银台，完成支付后本窗口会自动确认到账。',
+            child: Text('已在浏览器打开支付宝收银台，完成支付后本卡片会自动确认到账。',
                 style: TextStyle(fontSize: AppDims.fsSm, color: t.text)),
           ),
         ]),
@@ -324,7 +305,8 @@ class _PurchaseDialogState extends ConsumerState<_PurchaseDialog> {
           child: Column(
             crossAxisAlignment: CrossAxisAlignment.start,
             children: [
-              Text('订单号', style: TextStyle(fontSize: AppDims.fsXs, color: t.muted)),
+              Text('订单号',
+                  style: TextStyle(fontSize: AppDims.fsXs, color: t.muted)),
               const SizedBox(height: 4),
               Text(_order?.outTradeNo ?? '—',
                   style: const TextStyle(
@@ -338,8 +320,19 @@ class _PurchaseDialogState extends ConsumerState<_PurchaseDialog> {
           ),
         ),
         const SizedBox(height: 10),
-        Text('关闭本窗口不影响到账：支付成功后授权自动续期，可稍后回本页刷新查看。',
+        Text('离开本页不影响到账：支付成功后授权自动续期，可稍后回本页刷新查看。',
             style: TextStyle(fontSize: AppDims.fsXs, color: t.faint)),
+        const SizedBox(height: 12),
+        Row(
+          mainAxisAlignment: MainAxisAlignment.end,
+          children: [
+            DsButton('重新选择', onPressed: _backToPick),
+            const SizedBox(width: 10),
+            DsButton('我已完成支付',
+                variant: DsBtnVariant.primary,
+                onPressed: () => _poll(manual: true)),
+          ],
+        ),
       ],
     );
   }
@@ -364,8 +357,7 @@ class _PurchaseDialogState extends ConsumerState<_PurchaseDialog> {
           ),
           const SizedBox(width: 12),
           Expanded(
-            child: Text(
-                expires != null ? '门店授权已续期至 $expires。' : '门店授权已续期。',
+            child: Text(expires != null ? '门店授权已续期至 $expires。' : '门店授权已续期。',
                 style: TextStyle(
                     fontSize: AppDims.fsTitle,
                     fontWeight: FontWeight.w600,
@@ -375,10 +367,16 @@ class _PurchaseDialogState extends ConsumerState<_PurchaseDialog> {
         const SizedBox(height: 10),
         Text('订单号 ${_order?.outTradeNo ?? '—'}',
             style: TextStyle(fontSize: AppDims.fsXs, color: t.muted)),
+        const SizedBox(height: 12),
+        Align(
+          alignment: Alignment.centerRight,
+          child: DsButton('完成', onPressed: _backToPick),
+        ),
       ],
     );
   }
 
-  static String _fmt(int n) =>
-      n.toString().replaceAllMapped(RegExp(r'(\d)(?=(\d{3})+$)'), (m) => '${m[1]},');
+  static String _fmt(int n) => n
+      .toString()
+      .replaceAllMapped(RegExp(r'(\d)(?=(\d{3})+$)'), (m) => '${m[1]},');
 }

client/lib/screens/settings/settings_screen.dart

@@ -1,6 +1,6 @@
 // screens/settings/settings_screen.dart — 系统设置（照原型 settings.html 重建）。
 // 布局：.head + .settings grid(左 .subnav 200px + 右面板卡)。子导航 5 项 =
-// 原型 4（门店信息/用户管理/授权兑换券/偏好设置）+ 保留真实功能「编号规则」。
+// 原型 4（门店信息/用户管理/授权管理/偏好设置）+ 保留真实功能「编号规则」。
 // 用户管理面板 = 预览表 + 「管理全部用户」→ /settings/users 独立页（原型 users.html）。
 // 原「系统参数」假设置（本地 state 不落后端）已按用户口径删除。
 import 'package:file_picker/file_picker.dart';
@@ -32,7 +32,7 @@ import '../../widgets/ds/ds_atoms.dart';
 import '../../widgets/ds/ds_menu.dart';
 import '../../widgets/ds/ds_table.dart';
 import '../../widgets/write_guard.dart';
-import 'purchase_dialog.dart';
+import 'purchase_card.dart';
 import 'users_screen.dart' show userRoleBadge, userStatusBadge;
 import '../../core/theme/app_fonts.dart';
 import '../../widgets/ds/ds_toast.dart';
@@ -53,7 +53,7 @@ class _SettingsScreenState extends ConsumerState<SettingsScreen> {
     (LucideIcons.house, '门店信息'),
     (LucideIcons.userPlus, '用户管理'),
     (LucideIcons.hash, '编号规则'),
-    (LucideIcons.trendingUp, '授权兑换券'),
+    (LucideIcons.trendingUp, '授权管理'),
     (LucideIcons.contrast, '偏好设置'),
   ];
   late int _panel = widget.initialTab.clamp(0, _navs.length - 1);
@@ -641,7 +641,7 @@ class _StoreInfoPanelState extends ConsumerState<_StoreInfoPanel> {
   }
 }
 
-// ── 面板 4：授权兑换券 ───────────────────────────────────────
+// ── 面板 4：授权管理 ───────────────────────────────────────
 class _LicensePanel extends ConsumerStatefulWidget {
   const _LicensePanel();
 
@@ -696,132 +696,131 @@ class _LicensePanelState extends ConsumerState<_LicensePanel> {
         ? lic!.expiresAt!.difference(appNow()).inDays.clamp(0, 99999)
         : null;
 
-    return _SettingsCard(
-      title: '授权管理',
-      desc: '在线购买或使用兑换券续期，时长在现有到期时间上叠加',
-      child: Column(
-        crossAxisAlignment: CrossAxisAlignment.start,
-        children: [
-          // 原型 .lic 统计条：bg 底 / border / r-md / pad 18 20
-          // 主 CTA「在线购买 / 续费」宽屏并排在统计条内，窄屏换行到统计条下方通栏
-          Container(
-            padding: const EdgeInsets.fromLTRB(20, 18, 20, 18),
-            decoration: BoxDecoration(
-              color: t.bg,
-              border: Border.all(color: t.border),
-              borderRadius: BorderRadius.circular(AppDims.rMd),
-            ),
-            child: Row(children: [
-              _stat(t, '授权到期日', expires),
-              const SizedBox(width: 24),
-              _stat(t, '剩余天数', days != null ? '剩余 $days 天' : '—', warn: true),
-              const Spacer(),
-              if (isAdmin && !context.isMobile) ...[
-                DsButton('在线购买 / 续费',
-                    variant: DsBtnVariant.primary,
-                    onPressed: () => showPurchaseDialog(context)),
-                const SizedBox(width: 14),
-              ],
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.stretch,
+      children: [
+        _SettingsCard(
+          title: '授权管理',
+          desc: '使用兑换券续期，时长在现有到期时间上叠加',
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              // 原型 .lic 统计条：bg 底 / border / r-md / pad 18 20
               Container(
-                width: 46,
-                height: 46,
+                padding: const EdgeInsets.fromLTRB(20, 18, 20, 18),
                 decoration: BoxDecoration(
-                  color: t.okSoft,
+                  color: t.bg,
+                  border: Border.all(color: t.border),
                   borderRadius: BorderRadius.circular(AppDims.rMd),
                 ),
-                child:
-                    Icon(LucideIcons.shieldCheck, size: 22, color: t.success),
+                child: Row(children: [
+                  _stat(t, '授权到期日', expires),
+                  const SizedBox(width: 24),
+                  _stat(t, '剩余天数', days != null ? '剩余 $days 天' : '—',
+                      warn: true),
+                  const Spacer(),
+                  Container(
+                    width: 46,
+                    height: 46,
+                    decoration: BoxDecoration(
+                      color: t.okSoft,
+                      borderRadius: BorderRadius.circular(AppDims.rMd),
+                    ),
+                    child: Icon(LucideIcons.shieldCheck,
+                        size: 22, color: t.success),
+                  ),
+                ]),
               ),
-            ]),
-          ),
-          if (isAdmin && context.isMobile) ...[
-            const SizedBox(height: 12),
-            SizedBox(
-              width: double.infinity,
-              child: DsButton('在线购买 / 续费',
-                  variant: DsBtnVariant.primary,
-                  onPressed: () => showPurchaseDialog(context)),
-            ),
-          ],
-          const SizedBox(height: 16),
-          // 兑换（原型 .redeem：input + 按钮，max 520）
-          ConstrainedBox(
-            constraints: const BoxConstraints(maxWidth: 520),
-            child: Row(
-              crossAxisAlignment: CrossAxisAlignment.end,
-              children: [
-                Expanded(
-                  child: Column(
-                    crossAxisAlignment: CrossAxisAlignment.start,
-                    children: [
-                      Text('兑换券短码',
-                          style: TextStyle(
-                              fontSize: AppDims.fsSm, color: t.muted)),
-                      const SizedBox(height: 6),
-                      DsInput(
-                        controller: _voucherCtrl,
-                        hintText: '输入兑换券短码',
+              const SizedBox(height: 16),
+              // 兑换（原型 .redeem：input + 按钮，max 520）
+              ConstrainedBox(
+                constraints: const BoxConstraints(maxWidth: 520),
+                child: Row(
+                  crossAxisAlignment: CrossAxisAlignment.end,
+                  children: [
+                    Expanded(
+                      child: Column(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          Text('兑换券短码',
+                              style: TextStyle(
+                                  fontSize: AppDims.fsSm, color: t.muted)),
+                          const SizedBox(height: 6),
+                          DsInput(
+                            controller: _voucherCtrl,
+                            hintText: '输入兑换券短码',
+                          ),
+                        ],
                       ),
-                    ],
-                  ),
+                    ),
+                    const SizedBox(width: 10),
+                    WriteGuard(
+                      child: DsButton(_redeeming ? '兑换中…' : '兑换续期',
+                          variant: DsBtnVariant.primary,
+                          onPressed: _redeeming ? null : _redeem),
+                    ),
+                  ],
                 ),
-                const SizedBox(width: 10),
-                WriteGuard(
-                  child: DsButton(_redeeming ? '兑换中…' : '兑换续期',
-                      variant: DsBtnVariant.primary,
-                      onPressed: _redeeming ? null : _redeem),
-                ),
-              ],
-            ),
-          ),
-          // 在线购买仅管理员（后端 purchase 接口 admin only，主 CTA 已上移到统计条）；
-          // 其他角色引导看官网价格页
-          if (!isAdmin) ...[
-            const SizedBox(height: 14),
-            Row(children: [
-              Text('在线购买请联系门店管理员 · ',
-                  style: TextStyle(fontSize: AppDims.fsSm, color: t.muted)),
-              InkWell(
-                onTap: () =>
-                    launchUrl(Uri.parse('${AppInfo.website}/#pricing')),
-                child: Text('查看套餐价格 →',
-                    style: TextStyle(
-                        fontSize: AppDims.fsSm,
-                        fontWeight: FontWeight.w600,
-                        color: t.primary)),
               ),
-            ]),
-          ],
-          const SizedBox(height: 16),
-          // 过期降级说明（现有能力保留）
-          Container(
-            padding: const EdgeInsets.all(14),
-            decoration: BoxDecoration(
-              color: t.bg,
-              border: Border.all(color: t.borderSubtle),
-              borderRadius: BorderRadius.circular(AppDims.rMd),
-            ),
-            child: Column(
-              crossAxisAlignment: CrossAxisAlignment.start,
-              children: [
-                Text('到期后的降级规则',
-                    style: TextStyle(
-                        fontSize: AppDims.fsSm,
-                        fontWeight: FontWeight.w600,
-                        color: t.heading)),
-                const SizedBox(height: 6),
-                for (final note in LicenseCopy.degradationNotes())
-                  Padding(
-                    padding: const EdgeInsets.only(top: 3),
-                    child: Text('· $note',
-                        style:
-                            TextStyle(fontSize: AppDims.fsSm, color: t.muted)),
+              // 在线购买仅管理员（后端 purchase 接口 admin only，主 CTA 已上移到统计条）；
+              // 其他角色引导看官网价格页
+              if (!isAdmin) ...[
+                const SizedBox(height: 14),
+                Row(children: [
+                  Text('在线购买请联系门店管理员 · ',
+                      style: TextStyle(fontSize: AppDims.fsSm, color: t.muted)),
+                  InkWell(
+                    onTap: () =>
+                        launchUrl(Uri.parse('${AppInfo.website}/#pricing')),
+                    child: Text('查看套餐价格 →',
+                        style: TextStyle(
+                            fontSize: AppDims.fsSm,
+                            fontWeight: FontWeight.w600,
+                            color: t.primary)),
                   ),
+                ]),
               ],
-            ),
+              const SizedBox(height: 16),
+              // 过期降级说明（现有能力保留）
+              Container(
+                padding: const EdgeInsets.all(14),
+                decoration: BoxDecoration(
+                  color: t.bg,
+                  border: Border.all(color: t.borderSubtle),
+                  borderRadius: BorderRadius.circular(AppDims.rMd),
+                ),
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Text('到期后的降级规则',
+                        style: TextStyle(
+                            fontSize: AppDims.fsSm,
+                            fontWeight: FontWeight.w600,
+                            color: t.heading)),
+                    const SizedBox(height: 6),
+                    for (final note in LicenseCopy.degradationNotes())
+                      Padding(
+                        padding: const EdgeInsets.only(top: 3),
+                        child: Text('· $note',
+                            style: TextStyle(
+                                fontSize: AppDims.fsSm, color: t.muted)),
+                      ),
+                  ],
+                ),
+              ),
+            ],
+          ),
+        ),
+        // 在线购买仅管理员（后端 purchase 接口 admin only），单独一张卡内联展示
+        if (isAdmin) ...[
+          const SizedBox(height: 16),
+          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(),
           ),
         ],
-      ),
+      ],
     );
   }