feat(i18n): add Traditional Chinese (zh-TW) locale support

.env.example

@@ -64,7 +64,7 @@ TZ=Asia/Shanghai
 # 系统默认语言（BCP-47），用于 Prompt 中 {{language}} 占位符回退。
 # 优先级：Accept-Language 请求头 > 此变量 > 内置默认值 (en-US)。
 # WEKNORA_LANGUAGE=zh-CN
-# 前端界面默认语言（BCP-47）。可选：zh-CN | en-US | ru-RU | ko-KR | ja-JP。
+# 前端界面默认语言（BCP-47）。可选：zh-CN | zh-TW | en-US | ru-RU | ko-KR | ja-JP。
 # 优先级：用户已选语言(localStorage) > 此变量 > 内置默认 zh-CN。
 # 仅影响首次访问/未手动切换语言的用户；改完重启 frontend 容器即生效，无需重建镜像。
 # DEFAULT_LOCALE=en-US

frontend/docker-entrypoint.sh

@@ -3,7 +3,7 @@
 # Only emit whitelisted locale tags to avoid config.js injection from env values.
 RUNTIME_DEFAULT_LOCALE=""
 case "${DEFAULT_LOCALE:-}" in
-  zh-CN|en-US|ru-RU|ko-KR|ja-JP) RUNTIME_DEFAULT_LOCALE="${DEFAULT_LOCALE}" ;;
+  zh-CN|zh-TW|en-US|ru-RU|ko-KR|ja-JP) RUNTIME_DEFAULT_LOCALE="${DEFAULT_LOCALE}" ;;
 esac
 
 # 生成运行时配置文件，注入环境变量到前端

frontend/public/config.js

@@ -4,6 +4,6 @@ window.__RUNTIME_CONFIG__ = {
   MAX_SKILL_BUNDLE_SIZE_MB: 256,
   // Optional: serve embed on a dedicated origin, e.g. 'https://embed.example.com'
   EMBED_BASE_URL: '',
-  // Optional: default UI locale for first-time visitors (zh-CN | en-US | ru-RU | ko-KR | ja-JP)
+  // Optional: default UI locale for first-time visitors (zh-CN | zh-TW | en-US | ru-RU | ko-KR | ja-JP)
   DEFAULT_LOCALE: '',
 };

frontend/public/weknora-widget.js

@@ -12,7 +12,7 @@
  *   WeKnora.openWithQuery('How do I reset my password?')
  *     Opens the panel (if closed) and sends the query when the iframe is ready.
  *   WeKnora.setLocale('en-US')
- *     Switch embed UI language (zh-CN | en-US | ko-KR | ja-JP | ru-RU).
+ *     Switch embed UI language (zh-CN | zh-TW | en-US | ko-KR | ja-JP | ru-RU).
  *
  * Secure mode (recommended): instead of `token`, pass `tokenEndpoint` — a URL on
  * your own backend that returns { token: "ems_...", expiresIn: 1800 }. Your

frontend/src/App.vue

@@ -20,6 +20,7 @@ import zhCNConfig from 'tdesign-vue-next/esm/locale/zh_CN'
 import koKRConfig from 'tdesign-vue-next/esm/locale/ko_KR'
 import jaJPConfig from 'tdesign-vue-next/esm/locale/ja_JP'
 import ruRUConfig from 'tdesign-vue-next/esm/locale/ru_RU'
+import zhTWConfig from 'tdesign-vue-next/esm/locale/zh_TW'
 
 const { locale, t, tm } = useI18n()
 const { formatRole, roleIcon } = useRoleLabel()
@@ -30,6 +31,7 @@ const settingsStore = useSettingsStore()
 const tdLocaleMap: Record<string, object> = {
   'en-US': enUSConfig,
   'zh-CN': zhCNConfig,
+  'zh-TW': zhTWConfig,
   'ko-KR': koKRConfig,
   'ja-JP': jaJPConfig,
   'ru-RU': ruRUConfig,

frontend/src/api/agent/index.ts

@@ -316,7 +316,7 @@ export interface IMChannel {
   enabled: boolean;
   mode: 'webhook' | 'websocket' | 'longpoll';
   output_mode: 'stream' | 'full';
-  locale?: '' | 'zh-CN' | 'en-US' | 'ko-KR' | 'ja-JP' | 'ru-RU';
+  locale?: '' | 'zh-CN' | 'zh-TW' | 'en-US' | 'ko-KR' | 'ja-JP' | 'ru-RU';
   session_mode?: 'user' | 'thread';
   knowledge_base_id?: string;
   credentials: Record<string, any>;

frontend/src/api/embed/index.ts

@@ -47,7 +47,7 @@ export interface EmbedChannelPublicConfig {
   default_locale?: string
 }
 
-export type EmbedLocaleTag = 'zh-CN' | 'en-US' | 'ko-KR' | 'ja-JP' | 'ru-RU' | ''
+export type EmbedLocaleTag = 'zh-CN' | 'zh-TW' | 'en-US' | 'ko-KR' | 'ja-JP' | 'ru-RU' | ''
 
 export interface EmbedChannelStats {
   session_count: number

frontend/src/components/AgentEmbedChannelPanel.vue

@@ -538,6 +538,7 @@ const headerTitleModeOptions = computed(() => ([
 const defaultLocaleOptions = computed(() => ([
   { label: t('embedPublish.defaultLocaleBrowser'), value: '' },
   { label: '简体中文', value: 'zh-CN' },
+  { label: '繁體中文', value: 'zh-TW' },
   { label: 'English', value: 'en-US' },
   { label: '한국어', value: 'ko-KR' },
   { label: '日本語', value: 'ja-JP' },

frontend/src/components/IMChannelPanel.vue

@@ -684,6 +684,7 @@ const platformOptions = computed(() => ([
 const localeOptions = computed(() => ([
   { value: '' as IMLocale, label: t('agentEditor.im.replyLanguageDefault') },
   { value: 'zh-CN' as IMLocale, label: '简体中文' },
+  { value: 'zh-TW' as IMLocale, label: '繁體中文' },
   { value: 'en-US' as IMLocale, label: 'English' },
   { value: 'ja-JP' as IMLocale, label: '日本語' },
   { value: 'ko-KR' as IMLocale, label: '한국어' },