refactor(client): 删除死代码 PlansScreen + NavView.plans + choosePlan l10n(Renew→Purchase 直达后无调用者)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

client/lib/l10n/app_text.dart

@@ -473,7 +473,6 @@ abstract class AppText {
   String get updateCheckFailed; // 检查失败(网络异常)
 
   // ── 套餐选择 ──
-  String get choosePlan;
   String get freePlan;
   String get proPlan;
   String get teamPlan;

client/lib/l10n/strings_en.dart

@@ -250,8 +250,6 @@ class StringsEn extends AppText {
   @override
   String get updateCheckFailed => 'Update check failed, try again later';
 
-  @override
-  String get choosePlan => 'Choose plan';
   @override
   String get freePlan => 'Free';
   @override

client/lib/l10n/strings_es.dart

@@ -250,8 +250,6 @@ class StringsEs extends AppText {
   @override
   String get updateCheckFailed => 'Falló la búsqueda de actualizaciones, inténtalo más tarde';
 
-  @override
-  String get choosePlan => 'Elegir plan';
   @override
   String get freePlan => 'Gratis';
   @override

client/lib/l10n/strings_ja.dart

@@ -250,8 +250,6 @@ class StringsJa extends AppText {
   @override
   String get updateCheckFailed => 'アップデートの確認に失敗しました。後でもう一度お試しください';
 
-  @override
-  String get choosePlan => 'プランを選択';
   @override
   String get freePlan => '無料';
   @override

client/lib/l10n/strings_ko.dart

@@ -250,8 +250,6 @@ class StringsKo extends AppText {
   @override
   String get updateCheckFailed => '업데이트 확인에 실패했습니다. 잠시 후 다시 시도하세요';
 
-  @override
-  String get choosePlan => '요금제 선택';
   @override
   String get freePlan => '무료';
   @override

client/lib/l10n/strings_ru.dart

@@ -250,8 +250,6 @@ class StringsRu extends AppText {
   @override
   String get updateCheckFailed => 'Не удалось проверить обновления, попробуйте позже';
 
-  @override
-  String get choosePlan => 'Выбор тарифа';
   @override
   String get freePlan => 'Бесплатный';
   @override

client/lib/l10n/strings_zh.dart

@@ -249,8 +249,6 @@ class StringsZh extends AppText {
   @override
   String get updateCheckFailed => '检查更新失败,请稍后重试';
 
-  @override
-  String get choosePlan => '选择套餐';
   @override
   String get freePlan => '免费版';
   @override

client/lib/shell/desktop_shell.dart

@@ -49,7 +49,6 @@ class DesktopShell extends ConsumerWidget {
       NavView.account: t.tabMe,
       NavView.contact: t.contactTitle,
       NavView.settings: t.settingsTitle,
-      NavView.plans: t.choosePlan,
       NavView.redeem: t.redeemTitle,
       NavView.devices: t.myDevices,
       NavView.purchase: t.purchaseTitle,
@@ -76,9 +75,6 @@ class DesktopShell extends ConsumerWidget {
         case NavView.settings:
           return const SettingsPage();
         // 账户下钻子页（内容区，顶栏带返回）
-        case NavView.plans:
-          // 只有 pro 走 pay v2 购买通道;team 等仍走既有兑换/联系人工流程。
-          return PlansScreen(t: t, embedded: true, onChoose: (code) => go(code == 'pro' ? NavView.purchase : NavView.redeem));
         case NavView.redeem:
           return RedeemScreen(t: t, embedded: true);
         case NavView.devices:

client/lib/state/navigation_provider.dart

@@ -3,11 +3,11 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 /// 一级视图 + 账户子页。
 /// desktop 侧栏暴露 6 个一级项（connect..settings）；mobile/tablet 取前 4 项，
-/// contact/settings 在 mobile 走账户子页。plans/redeem 是 account 的下钻页。
-enum NavView { connect, servers, stats, account, contact, settings, plans, redeem, devices, purchase, payment, orders, invite, notifications }
+/// contact/settings 在 mobile 走账户子页。redeem 是 account 的下钻页。
+enum NavView { connect, servers, stats, account, contact, settings, redeem, devices, purchase, payment, orders, invite, notifications }
 
 /// 账户下钻子页（desktop 在内容区切换、顶栏带返回；mobile/tablet 走全屏 push）。
-const Set<NavView> kAccountSubViews = {NavView.plans, NavView.redeem, NavView.devices, NavView.purchase, NavView.payment, NavView.orders, NavView.invite};
+const Set<NavView> kAccountSubViews = {NavView.redeem, NavView.devices, NavView.purchase, NavView.payment, NavView.orders, NavView.invite};
 
 /// 当前视图。
 final navViewProvider = StateProvider<NavView>((ref) => NavView.connect);

client/lib/widgets/account_screens.dart

@@ -20,7 +20,6 @@ import '../services/auth_api.dart';
 import '../state/account_providers.dart';
 import 'pangolin_button.dart';
 import 'pangolin_icons.dart';
-import 'plan_card.dart';
 
 /// 通用:带返回箭头的子页骨架。embedded=true 时只返回内容（desktop 内容区下钻，
 /// 返回/标题由外层 shell 顶栏提供），否则整页 Scaffold（mobile/tablet 全屏 push）。
@@ -67,66 +66,6 @@ class SettingsScreen extends StatelessWidget {
   }
 }
 
-/// ── 套餐选择 ── (价格/额度来自 GET /v1/plans;当前档由 me.plan 判定;
-/// 功能清单仍取 l10n,后端无此字段)
-class PlansScreen extends ConsumerWidget {
-  const PlansScreen({super.key, required this.t, this.onChoose, this.onBack, this.embedded = false});
-  final AppText t;
-  final ValueChanged<String>? onChoose;
-  final VoidCallback? onBack;
-  final bool embedded;
-
-  List<String> _feats(String code) => switch (code) {
-        'free' => t.featsFree,
-        'pro' => t.featsPro,
-        'team' => t.featsTeam,
-        _ => const [],
-      };
-
-  // 套餐名是 UI 文案(后端 plans 表无名称列),按 code 取 l10n。
-  String _name(String code) => switch (code) {
-        'free' => t.freePlan,
-        'pro' => t.proPlan,
-        'team' => t.teamPlan,
-        _ => code,
-      };
-
-  @override
-  Widget build(BuildContext context, WidgetRef ref) {
-    final c = context.pangolin;
-    final plansAsync = ref.watch(plansProvider);
-    final myPlan = ref.watch(meProvider).valueOrNull?.plan ?? 'free';
-
-    Widget body() => plansAsync.when(
-          loading: () => const Center(child: Padding(padding: EdgeInsets.all(40), child: CircularProgressIndicator())),
-          error: (_, __) => Center(
-              child: Padding(padding: const EdgeInsets.all(40), child: Text(t.lang.loadFailedRetry, style: PangolinText.body.copyWith(color: c.fg3)))),
-          data: (plans) => ListView(
-            padding: const EdgeInsets.fromLTRB(20, 14, 20, 24),
-            children: [
-              for (final p in plans)
-                Padding(
-                  padding: EdgeInsets.only(bottom: 14, top: p.code == 'pro' ? 12 : 0),
-                  child: PlanCard(
-                    name: _name(p.code),
-                    price: p.priceLabel(),
-                    period: t.perMonth,
-                    features: _feats(p.code),
-                    ctaLabel: p.code == myPlan ? t.current : (p.code == 'team' ? t.choose : t.upgrade),
-                    featured: p.code == 'pro',
-                    isCurrent: p.code == myPlan,
-                    popularLabel: p.code == 'pro' ? t.mostPopular : null,
-                    onPressed: () => onChoose?.call(p.code),
-                  ),
-                ),
-            ],
-          ),
-        );
-
-    return _SubScaffold(title: t.choosePlan, onBack: onBack, embedded: embedded, child: body());
-  }
-}
-
 /// ── 设备管理 ── (真实 GET /v1/me/devices;移除 = DELETE。本机高亮待 P6 设备 id)
 class DevicesScreen extends ConsumerWidget {
   const DevicesScreen({super.key, required this.t, this.onBack, this.embedded = false});

client/test/golden/desktop_pages_golden_test.dart

@@ -70,7 +70,6 @@ void main() {
   testWidgets('desktop 联系页', (t) => _shoot(t, NavView.contact, 'desktop_contact'));
   testWidgets('desktop 设置页', (t) => _shoot(t, NavView.settings, 'desktop_settings'));
   // 账户下钻子页（内容区 + 顶栏返回）
-  testWidgets('desktop 套餐选择', (t) => _shoot(t, NavView.plans, 'desktop_plans'));
   testWidgets('desktop 兑换购买', (t) => _shoot(t, NavView.redeem, 'desktop_redeem'));
   testWidgets('desktop 设备管理', (t) => _shoot(t, NavView.devices, 'desktop_devices'));
 }