refactor(contact): 渠道抽单源常量 + RedeemScreen 删去哪买引流卡(仅留兑换码)

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

client/lib/screens/contact_page.dart

@@ -8,6 +8,7 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import '../l10n/app_text.dart';
 import '../pangolin_theme.dart';
 import '../services/channel_launch.dart';
+import '../services/contact_channels.dart';
 import '../state/app_providers.dart';
 import '../widgets/pangolin_icons.dart';
 
@@ -19,11 +20,19 @@ class ContactPage extends ConsumerWidget {
     final c = context.pangolin;
     final t = ref.watch(appTextProvider);
 
-    final channels = <({IconData icon, String name, String sub, bool accent})>[
-      (icon: PangolinIcons.send, name: 'Telegram', sub: '@pangolin_app', accent: true),
-      (icon: PangolinIcons.mail, name: t.contactEmail, sub: 'support@yanmeiai.com', accent: false),
-      (icon: PangolinIcons.globe, name: t.contactWebsite, sub: 'pangolin.yanmeiai.com', accent: false),
-    ];
+    final channels = kContactChannels
+        .map((ch) => (
+              icon: ch.icon,
+              name: switch (ch.nameKey) {
+                'telegram' => 'Telegram',
+                'email' => t.contactEmail,
+                'website' => t.contactWebsite,
+                _ => ch.nameKey,
+              },
+              sub: ch.sub,
+              accent: ch.accent,
+            ))
+        .toList();
 
     return SingleChildScrollView(
       padding: const EdgeInsets.fromLTRB(32, 16, 32, 24),

client/lib/services/contact_channels.dart

@@ -0,0 +1,23 @@
+// contact_channels.dart — 联系渠道单源常量(Telegram/邮箱/官网)
+//
+// 三处引用点：screens/contact_page.dart(桌面联系页)、
+// widgets/account_screens.dart 的 ContactScreen / RedeemScreen。
+// name 用 nameKey 占位，页面侧按 t 映射(telegram→字面量，email/website→AppText)，
+// 避免把 AppText 塞进常量。点击行为仍由 services/channel_launch.dart::launchChannel 处理。
+import 'package:flutter/widgets.dart';
+import '../widgets/pangolin_icons.dart';
+
+class ContactChannel {
+  const ContactChannel({required this.icon, required this.name, required this.sub, this.accent = false});
+  final IconData icon;
+  final String name; // 展示名(Telegram 用字面量；邮箱/官网用 l10n，在页面侧传入)
+  final String sub; // handle：@x / a@b / domain（launchChannel 据此推导 URL）
+  final bool accent;
+}
+
+// name 用 key 占位，页面按 t 映射；Telegram 固定字面量
+const List<({IconData icon, String nameKey, String sub, bool accent})> kContactChannels = [
+  (icon: PangolinIcons.send, nameKey: 'telegram', sub: '@pangolin_app', accent: true),
+  (icon: PangolinIcons.mail, nameKey: 'email', sub: 'support@yanmeiai.com', accent: false),
+  (icon: PangolinIcons.globe, nameKey: 'website', sub: 'pangolin.yanmeiai.com', accent: false),
+];

client/lib/widgets/account_screens.dart

@@ -11,6 +11,7 @@ import '../l10n/app_text.dart';
 import '../models/device.dart';
 import '../pangolin_theme.dart';
 import '../services/channel_launch.dart';
+import '../services/contact_channels.dart';
 import '../screens/settings_page.dart';
 import '../services/device_identity.dart';
 import 'adaptive_menu.dart';
@@ -374,11 +375,6 @@ class _RedeemScreenState extends ConsumerState<RedeemScreen> {
   Widget build(BuildContext context) {
     final c = context.pangolin;
     final t = widget.t;
-    final channels = [
-      (icon: PangolinIcons.send, name: 'Telegram', sub: '@pangolin_app', accent: true),
-      (icon: PangolinIcons.mail, name: t.chEmail, sub: 'support@yanmeiai.com', accent: false),
-      (icon: PangolinIcons.globe, name: t.contactWebsite, sub: 'pangolin.yanmeiai.com', accent: false),
-    ];
     return _SubScaffold(
       title: t.redeemTitle,
       onBack: widget.onBack,
@@ -417,36 +413,9 @@ class _RedeemScreenState extends ConsumerState<RedeemScreen> {
             ],
           ]),
         ),
-        const SizedBox(height: 22),
-        Text(t.buyTitle, style: PangolinText.sm.copyWith(color: c.fg1, fontWeight: FontWeight.w700, fontSize: 14.5)),
-        const SizedBox(height: 6),
-        Text(t.buySub, style: PangolinText.caption.copyWith(color: c.fg3, fontWeight: FontWeight.w400, height: 1.5)),
-        const SizedBox(height: 14),
-        for (final ch in channels) Padding(padding: const EdgeInsets.only(bottom: 10), child: _channel(c, ch.icon, ch.name, ch.sub, ch.accent)),
       ]),
     );
   }
-
-  Widget _channel(PangolinScheme c, IconData icon, String name, String sub, bool accent) {
-    return InkWell(
-      borderRadius: BorderRadius.circular(PangolinRadius.lg),
-      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),
-        child: Row(children: [
-          Container(width: 40, height: 40, decoration: BoxDecoration(color: accent ? c.accent : c.bgSubtle, borderRadius: BorderRadius.circular(PangolinRadius.md)),
-              child: Icon(icon, size: 20, color: accent ? PangolinColors.white : c.accent)),
-          const SizedBox(width: 13),
-          Expanded(child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
-            Text(name, style: PangolinText.body.copyWith(color: c.fg1, fontWeight: FontWeight.w600)),
-            Text(sub, style: PangolinText.caption.copyWith(color: c.fg3, fontWeight: FontWeight.w400)),
-          ])),
-          Icon(PangolinIcons.externalLink, size: 16, color: c.fg3),
-        ]),
-      ),
-    );
-  }
 }
 
 /// ── 联系我们 ──
@@ -458,11 +427,19 @@ class ContactScreen extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final c = context.pangolin;
-    final channels = [
-      (icon: PangolinIcons.send, name: 'Telegram', sub: '@pangolin_app', accent: true),
-      (icon: PangolinIcons.mail, name: t.contactEmail, sub: 'support@yanmeiai.com', accent: false),
-      (icon: PangolinIcons.globe, name: t.contactWebsite, sub: 'pangolin.yanmeiai.com', accent: false),
-    ];
+    final channels = kContactChannels
+        .map((ch) => (
+              icon: ch.icon,
+              name: switch (ch.nameKey) {
+                'telegram' => 'Telegram',
+                'email' => t.contactEmail,
+                'website' => t.contactWebsite,
+                _ => ch.nameKey,
+              },
+              sub: ch.sub,
+              accent: ch.accent,
+            ))
+        .toList();
     return _SubScaffold(
       title: t.contactTitle,
       onBack: onBack,