fix: 修复语言设置为简体中文而非繁体翻译

apps/lib/features/settings/data/models/profile_settings.dart

@@ -5,7 +5,9 @@ import '../../../../l10n/app_localizations.dart';
 String displayLanguageLabel(AppLocalizations l10n, String languageTag) {
   return switch (languageTag) {
     'en-US' => l10n.english,
-    _ => l10n.chinese,
+    'zh-Hant' => '繁體中文',
+    'zh-CN' => '简体中文',
+    _ => '简体中文',
   };
 }
 
@@ -113,6 +115,10 @@ String languageTagFromLocale(Locale locale) {
     case 'en':
       return 'en-US';
     case 'zh':
+      if (locale.scriptCode == 'Hant') {
+        return 'zh-Hant';
+      }
+      return 'zh-CN';
     default:
       return 'zh-CN';
   }
@@ -122,5 +128,8 @@ Locale localeFromLanguageTag(String tag) {
   if (tag.toLowerCase().startsWith('en')) {
     return const Locale('en');
   }
+  if (tag == 'zh-Hant') {
+    return const Locale.fromSubtags(languageCode: 'zh', scriptCode: 'Hant');
+  }
   return const Locale('zh');
 }