fix(i18n): add missing zh-TW frontend components and configs (#117)

* fix(i18n): add zh-TW to language options in settings menu

* fix(i18n): add zh-TW to language options in splash layer

* fix(i18n): add zh-TW support to setLocale function

* feat(i18n): add zh-TW game config files (names)

* feat(i18n): add zh-TW AI prompt templates

* docs：修正 glossary 繁中欄位

* docs：解決 glossary 衝突

* fix(i18n)：補齊 zh-TW world info 標題

web/src/components/SplashLayer.vue

@@ -41,6 +41,7 @@ onMounted(() => {
 
 const languageOptions = [
   { label: '简体中文', value: 'zh-CN' },
+  { label: '繁體中文', value: 'zh-TW' },
   { label: 'English', value: 'en-US' }
 ]
 

web/src/components/SystemMenu.vue

@@ -30,6 +30,7 @@ const activeTab = ref<'save' | 'load' | 'create' | 'delete' | 'llm' | 'start' |
 
 const languageOptions = [
   { label: '简体中文', value: 'zh-CN' },
+  { label: '繁體中文', value: 'zh-TW' },
   { label: 'English', value: 'en-US' }
 ]
 

web/src/stores/setting.ts

@@ -6,7 +6,7 @@ import { systemApi } from '../api/modules/system';
 export const useSettingStore = defineStore('setting', () => {
   const locale = ref(localStorage.getItem('app_locale') || 'zh-CN');
 
-  async function setLocale(lang: 'zh-CN' | 'en-US') {
+  async function setLocale(lang: 'zh-CN' | 'zh-TW' | 'en-US') {
     // 1. Optimistic UI update
     locale.value = lang;
     localStorage.setItem('app_locale', lang);
@@ -16,7 +16,12 @@ export const useSettingStore = defineStore('setting', () => {
         (i18n.global.locale as any).value = lang;
     }
     // Update HTML lang attribute for accessibility
-    document.documentElement.lang = lang === 'zh-CN' ? 'zh-CN' : 'en';
+    const langMap: Record<string, string> = {
+      'zh-CN': 'zh-CN',
+      'zh-TW': 'zh-TW',
+      'en-US': 'en'
+    };
+    document.documentElement.lang = langMap[lang] || 'en';
 
     // 2. Sync with backend
     await syncBackend();