优化：AI翻译里面的翻译语言列表优先显示为当前用户的语言，其次系统的语言，默认英语兜底

frontend/src/core/features/block_editor/ai/ai-protocol.ts

@@ -12,6 +12,8 @@
 
 // ── 事件名（统一管理，避免散落各处）────────────────────────────────────────────
 
+import { getCurrentLocale } from '@/shared/i18n'
+
 /** Block Editor 推送上下文到 AI 侧栏 */
 export const BE_AI_CONTEXT = 'blockeditor:ai-context'
 /** Block Editor 请求 AI 执行动作 */
@@ -69,23 +71,23 @@ export const TONE_OPTIONS: AIActionOption[] = [
 /** 默认翻译语言列表 */
 export const LANG_OPTIONS: AIActionOption[] = [
   { value: 'English',              label: 'English' },
-  { value: 'Simplified Chinese',   label: '简体中文' },
-  { value: 'Traditional Chinese',  label: '繁體中文' },
-  { value: 'Japanese',             label: '日本語' },
-  { value: 'Korean',               label: '한국어' },
-  { value: 'French',               label: 'Français' },
-  { value: 'German',               label: 'Deutsch' },
-  { value: 'Spanish',              label: 'Español' },
-  { value: 'Portuguese',           label: 'Português' },
-  { value: 'Italian',              label: 'Italiano' },
-  { value: 'Russian',              label: 'Русский' },
-  { value: 'Arabic',               label: 'العربية' },
-  { value: 'Hindi',                label: 'हिन्दी' },
-  { value: 'Dutch',                label: 'Nederlands' },
-  { value: 'Polish',               label: 'Polski' },
-  { value: 'Turkish',              label: 'Türkçe' },
-  { value: 'Vietnamese',           label: 'Tiếng Việt' },
-  { value: 'Thai',                 label: 'ภาษาไทย' },
+  { value: 'Simplified Chinese',   label: 'Simplified Chinese' },
+  { value: 'Traditional Chinese',  label: 'Traditional Chinese' },
+  { value: 'Japanese',             label: 'Japanese' },
+  { value: 'Korean',               label: 'Korean' },
+  { value: 'French',               label: 'French' },
+  { value: 'German',               label: 'German' },
+  { value: 'Spanish',              label: 'Spanish' },
+  { value: 'Portuguese',           label: 'Portuguese' },
+  { value: 'Italian',              label: 'Italian' },
+  { value: 'Russian',              label: 'Russian' },
+  { value: 'Arabic',               label: 'Arabic' },
+  { value: 'Hindi',                label: 'Hindi' },
+  { value: 'Dutch',                label: 'Dutch' },
+  { value: 'Polish',               label: 'Polish' },
+  { value: 'Turkish',              label: 'Turkish' },
+  { value: 'Vietnamese',           label: 'Vietnamese' },
+  { value: 'Thai',                 label: 'Thai' },
 ]
 
 /** 内置 AI 动作注册表 */
@@ -144,6 +146,48 @@ export interface BEInsertDetail {
 
 // ── 工具函数 ───────────────────────────────────────────────────────────────────
 
+/**
+ * 根据当前用户语言获取默认翻译目标语言。
+ * 优先级：用户语言 → 系统语言 → English 兜底
+ */
+export function getDefaultTargetLang(): string {
+  try {
+    const locale = getCurrentLocale()
+    if (!locale) return 'English'
+    const code = locale.toLowerCase()
+    // 直接匹配完整 locale
+    const direct = LANG_OPTIONS.find(o =>
+      o.value.toLowerCase().replace(/\s+/g, '') === code.replace(/[^a-z]/g, ''))
+    if (direct) return direct.value
+    // 匹配语言前缀
+    const langMap: Record<string, string> = {
+      zh: 'Simplified Chinese',
+      ja: 'Japanese',
+      ko: 'Korean',
+      fr: 'French',
+      de: 'German',
+      es: 'Spanish',
+      pt: 'Portuguese',
+      it: 'Italian',
+      ru: 'Russian',
+      ar: 'Arabic',
+      hi: 'Hindi',
+      nl: 'Dutch',
+      pl: 'Polish',
+      tr: 'Turkish',
+      vi: 'Vietnamese',
+      th: 'Thai',
+    }
+    const prefix = code.split(/[-_]/)[0]
+    // 特殊处理：zh-TW → Traditional Chinese
+    if (prefix === 'zh' && (code.includes('tw') || code.includes('hk') || code.includes('mo'))) {
+      return 'Traditional Chinese'
+    }
+    if (langMap[prefix]) return langMap[prefix]
+  } catch { /* ignore */ }
+  return 'English'
+}
+
 /** 安全地 dispatch CustomEvent（避免未捕获异常） */
 export function dispatchAIEvent<T>(eventName: string, detail: T): void {
   try {

frontend/src/core/features/block_editor/blocks/ai-command/index.ts

@@ -11,6 +11,7 @@
 
 import type { BlockModule } from '../../registry/types'
 import { t } from '@/shared/i18n'
+import { getDefaultTargetLang } from '../../ai/ai-protocol'
 
 const AICommandBlock: BlockModule = {
   name: 'aiCommand',
@@ -127,7 +128,7 @@ const AICommandBlock: BlockModule = {
         editor.chain().focus().deleteRange(range).run()
         window.dispatchEvent(
           new CustomEvent('blockeditor:ai-action', {
-            detail: { editor, action: 'translate', params: { target_lang: 'Simplified Chinese' }, selectedText },
+            detail: { editor, action: 'translate', params: { target_lang: getDefaultTargetLang() }, selectedText },
           }),
         )
       },

jingrow/locale/zh.po

@@ -22709,3 +22709,57 @@ msgstr "已全部拒绝"
 
 msgid "Restore Review"
 msgstr "恢复审阅"
+
+msgid "English"
+msgstr "英语"
+
+msgid "Simplified Chinese"
+msgstr "简体中文"
+
+msgid "Traditional Chinese"
+msgstr "繁体中文"
+
+msgid "Japanese"
+msgstr "日语"
+
+msgid "Korean"
+msgstr "韩语"
+
+msgid "French"
+msgstr "法语"
+
+msgid "German"
+msgstr "德语"
+
+msgid "Spanish"
+msgstr "西班牙语"
+
+msgid "Portuguese"
+msgstr "葡萄牙语"
+
+msgid "Italian"
+msgstr "意大利语"
+
+msgid "Russian"
+msgstr "俄语"
+
+msgid "Arabic"
+msgstr "阿拉伯语"
+
+msgid "Hindi"
+msgstr "印地语"
+
+msgid "Dutch"
+msgstr "荷兰语"
+
+msgid "Polish"
+msgstr "波兰语"
+
+msgid "Turkish"
+msgstr "土耳其语"
+
+msgid "Vietnamese"
+msgstr "越南语"
+
+msgid "Thai"
+msgstr "泰语"