feat(i18n): 分流规则页静态标签接单源 + 修 mobile 设置行模式 pill 语言

路由页此前静态标签硬编码中文,EN 模式混语。全部接进 strings.json 单源:
- 新增 26 个 routing* 产品 getter(6 语):代理模式/内置规则/国内直连/我的规则/
  添加规则/从文本导入/重置默认/最终/直连·走隧道·拒绝/域名后缀/GeoSite 规则集/返回设置…
  (复用 smartRoute;seg 三项 EN 取短词 Global/Smart/Direct 适配段宽)。
- app_text.dart +26 抽象声明;重生成 6 份 strings_*.dart;alias.json desktop +24 / mobile +19。
- markup 加 data-i18n;JS pill(直连/走隧道/拒绝、FINAL)统一改从生成的 I18N 单源取(_ri),
  与静态 pill 同源。JS-owned 的模式说明 rtModeNote 保留 _t 双语(不加 data-i18n)。
- desktop LAN 行(此前未接)补接 rr.lan/rr.lanSub + 新 routingForcedPill。
- 修 mobile 设置行「Routing rules」的模式 pill:缺 data-i18n → EN 显中文,补 setSmartRoute
  (en=Smart routing,与 desktop 一致)。

验收:l10n 重生成+analyze 0 issue、原型 0 unresolved、生成器零 diff、244 测试全绿、无红线词。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A79VtQA1BwTuQN1ThpvYpo

client/lib/l10n/strings_en.dart

@@ -511,6 +511,54 @@ class StringsEn extends AppText {
   @override
   String get routingLanForced => 'Always on';
   @override
+  String get routingForcedPill => '🔒 Forced';
+  @override
+  String get routingProxyMode => 'Proxy mode';
+  @override
+  String get routingModeGlobal => 'Global';
+  @override
+  String get routingModeSmart => 'Smart';
+  @override
+  String get routingModeDirect => 'Direct';
+  @override
+  String get routingBuiltin => 'Built-in rules';
+  @override
+  String get routingCnDirect => 'China direct';
+  @override
+  String get routingMyRulesOrdered => 'My rules · ordered, first match wins';
+  @override
+  String get routingMyRulesFirst => 'My rules · first match wins';
+  @override
+  String get routingFinalLong => 'Final (no rule matched)';
+  @override
+  String get routingFinalShort => 'Final (no match)';
+  @override
+  String get routingFinalFallback => 'FINAL fallback';
+  @override
+  String get routingTypeDomainSuffix => 'Domain suffix';
+  @override
+  String get routingTypeDomainSuffixCi => 'Domain suffix · CI source';
+  @override
+  String get routingTypeDomainSuffixMirror => 'Domain suffix · Mirror';
+  @override
+  String get routingTypeGeosite => 'GeoSite rule-set';
+  @override
+  String get routingActDirect => 'Direct';
+  @override
+  String get routingActProxy => 'Tunnel';
+  @override
+  String get routingActReject => 'Reject';
+  @override
+  String get routingForcedRow => '⚠ Forced to tunnel by the system; this rule is inactive';
+  @override
+  String get routingAddRule => 'Add rule';
+  @override
+  String get routingImport => 'Import from text';
+  @override
+  String get routingReset => 'Reset defaults';
+  @override
+  String get routingBack => 'Back to settings';
+  @override
   List<String> get days7 => const ['M', 'T', 'W', 'T', 'F', 'S', 'S'];
   @override
   List<String> get featsFree => const ['1 basic node only', '10 min per day', 'Watch an ad to start', '7-day free trial on sign-up'];