让界面语言直接驱动日文/韩文输出偏好并避免翻译链路冲突

在现有简繁联动基础上扩展 ja/ko 本地化与 outputLanguagePreference，保持不新增额外设置项。前端在语言切换时统一同步 chineseScriptPreference + outputLanguagePreference；后端在 polish/QA 链路注入输出语言偏好，但翻译链路固定以 target_language 为唯一约束，避免 UI 语言与翻译目标冲突。

Constraint: 用户要求最小修改且不新增独立输出语言开关

Rejected: 新增单独输出语言设置项 | 与既定交互约束冲突

Confidence: high

Scope-risk: moderate

Reversibility: clean

Directive: 翻译链路不要再次注入 output language 偏好，除非先定义与 target_language 的优先级规则

Tested: npm run -s build

Tested: cargo test -q (72 passed)

Not-tested: 真机端到端切换 ja/ko 后的实际模型输出体验

openless-all/app/src-tauri/src/commands.rs

@@ -13,7 +13,8 @@ use crate::persistence::{CredentialAccount, CredentialsSnapshot, CredentialsVaul
 use crate::polish::{LLMError, OpenAICompatibleConfig, OpenAICompatibleLLMProvider};
 use crate::types::{
     ChineseScriptPreference, CredentialsStatus, DictationSession, DictionaryEntry,
-    HotkeyCapability, HotkeyStatus, PolishMode, QaHotkeyBinding, UserPreferences,
+    HotkeyCapability, HotkeyStatus, OutputLanguagePreference, PolishMode, QaHotkeyBinding,
+    UserPreferences,
     VocabPresetStore, WindowsImeStatus,
 };
 
@@ -230,6 +231,7 @@ async fn validate_llm_provider() -> Result<(), String> {
             &[],
             &[],
             ChineseScriptPreference::Auto,
+            OutputLanguagePreference::Auto,
             None,
         )
         .await

openless-all/app/src-tauri/src/coordinator.rs

@@ -32,7 +32,8 @@ use crate::recorder::{Recorder, RecorderError};
 use crate::selection::{capture_selection, SelectionContext};
 use crate::types::{
     CapsulePayload, CapsuleState, ChineseScriptPreference, DictationSession, HotkeyCapability,
-    HotkeyMode, HotkeyStatus, HotkeyStatusState, InsertStatus, PolishMode,
+    HotkeyMode, HotkeyStatus, HotkeyStatusState, InsertStatus, OutputLanguagePreference,
+    PolishMode,
 };
 #[cfg(target_os = "windows")]
 use crate::windows_ime_ipc::ImeSubmitTarget;
@@ -477,6 +478,7 @@ impl Coordinator {
         let prefs = self.inner.prefs.get();
         let working_languages = prefs.working_languages;
         let chinese_script_preference = prefs.chinese_script_preference;
+        let output_language_preference = prefs.output_language_preference;
         // repolish 是历史记录里手动重新润色，不再绑定原 session 的前台 app；
         // 当下用户调起的 app 才是相关上下文（如果可拿）。
         let front_app = capture_frontmost_app();
@@ -486,6 +488,7 @@ impl Coordinator {
             &hotwords,
             &working_languages,
             chinese_script_preference,
+            output_language_preference,
             front_app.as_deref(),
         )
         .await
@@ -1645,6 +1648,7 @@ async fn end_session(inner: &Arc<Inner>) -> Result<(), String> {
     let hotword_strs = enabled_phrases(inner);
     let working_languages = prefs.working_languages.clone();
     let chinese_script_preference = prefs.chinese_script_preference;
+    let output_language_preference = prefs.output_language_preference;
     let front_app = inner.state.lock().front_app.clone();
     let translation_target = prefs.translation_target_language.trim().to_string();
     let translation_active =
@@ -1661,6 +1665,7 @@ async fn end_session(inner: &Arc<Inner>) -> Result<(), String> {
             &translation_target,
             &working_languages,
             chinese_script_preference,
+            output_language_preference,
             front_app.as_deref(),
         )
         .await
@@ -1671,6 +1676,7 @@ async fn end_session(inner: &Arc<Inner>) -> Result<(), String> {
             &hotword_strs,
             &working_languages,
             chinese_script_preference,
+            output_language_preference,
             front_app.as_deref(),
         )
         .await
@@ -2216,6 +2222,7 @@ async fn polish_or_passthrough(
     hotwords: &[String],
     working_languages: &[String],
     chinese_script_preference: ChineseScriptPreference,
+    output_language_preference: OutputLanguagePreference,
     front_app: Option<&str>,
 ) -> (String, Option<String>) {
     if mode == PolishMode::Raw {
@@ -2227,6 +2234,7 @@ async fn polish_or_passthrough(
         hotwords,
         working_languages,
         chinese_script_preference,
+        output_language_preference,
         front_app,
     )
     .await
@@ -2246,6 +2254,7 @@ async fn polish_text(
     hotwords: &[String],
     working_languages: &[String],
     chinese_script_preference: ChineseScriptPreference,
+    output_language_preference: OutputLanguagePreference,
     front_app: Option<&str>,
 ) -> anyhow::Result<String> {
     let api_key = CredentialsVault::get(CredentialAccount::ArkApiKey)?.unwrap_or_default();
@@ -2267,6 +2276,7 @@ async fn polish_text(
             hotwords,
             working_languages,
             chinese_script_preference,
+            output_language_preference,
             front_app,
         )
         .await?)
@@ -2278,6 +2288,7 @@ async fn translate_or_passthrough(
     target_language: &str,
     working_languages: &[String],
     chinese_script_preference: ChineseScriptPreference,
+    output_language_preference: OutputLanguagePreference,
     front_app: Option<&str>,
 ) -> (String, Option<String>) {
     match translate_text(
@@ -2285,6 +2296,7 @@ async fn translate_or_passthrough(
         target_language,
         working_languages,
         chinese_script_preference,
+        output_language_preference,
         front_app,
     )
     .await
@@ -2303,6 +2315,7 @@ async fn translate_text(
     target_language: &str,
     working_languages: &[String],
     chinese_script_preference: ChineseScriptPreference,
+    output_language_preference: OutputLanguagePreference,
     front_app: Option<&str>,
 ) -> anyhow::Result<String> {
     let api_key = CredentialsVault::get(CredentialAccount::ArkApiKey)?.unwrap_or_default();
@@ -2323,6 +2336,7 @@ async fn translate_text(
             target_language,
             working_languages,
             chinese_script_preference,
+            output_language_preference,
             front_app,
         )
         .await?)
@@ -2651,6 +2665,7 @@ async fn end_qa_session(inner: &Arc<Inner>) -> Result<(), String> {
     let prefs = inner.prefs.get();
     let working_languages = prefs.working_languages.clone();
     let chinese_script_preference = prefs.chinese_script_preference;
+    let output_language_preference = prefs.output_language_preference;
     let (messages_for_llm, front_app) = {
         let st = inner.qa_state.lock();
         (st.messages.clone(), st.front_app.clone())
@@ -2690,6 +2705,7 @@ async fn end_qa_session(inner: &Arc<Inner>) -> Result<(), String> {
         &messages_for_llm,
         &working_languages,
         chinese_script_preference,
+        output_language_preference,
         front_app.as_deref(),
         on_delta,
         should_cancel,
@@ -2838,6 +2854,7 @@ async fn answer_chat_dispatch<F, C>(
     messages: &[crate::types::QaChatMessage],
     working_languages: &[String],
     chinese_script_preference: ChineseScriptPreference,
+    output_language_preference: OutputLanguagePreference,
     front_app: Option<&str>,
     on_delta: F,
     should_cancel: C,
@@ -2862,6 +2879,7 @@ where
             messages,
             working_languages,
             chinese_script_preference,
+            output_language_preference,
             front_app,
             on_delta,
             should_cancel,

openless-all/app/src-tauri/src/polish.rs

@@ -10,7 +10,9 @@ use std::time::Duration;
 use serde_json::{json, Value};
 use thiserror::Error;
 
-use crate::types::{ChineseScriptPreference, PolishMode, QaChatMessage};
+use crate::types::{
+    ChineseScriptPreference, OutputLanguagePreference, PolishMode, QaChatMessage,
+};
 
 const DEFAULT_TEMPERATURE: f32 = 0.3;
 const DEFAULT_REQUEST_TIMEOUT_SECS: u64 = 30;
@@ -91,11 +93,17 @@ impl OpenAICompatibleLLMProvider {
         hotwords: &[String],
         working_languages: &[String],
         chinese_script_preference: ChineseScriptPreference,
+        output_language_preference: OutputLanguagePreference,
         front_app: Option<&str>,
     ) -> Result<String, LLMError> {
         let mut system_prompt = compose_system_prompt(mode, hotwords);
         if let Some(premise) =
-            context_premise(working_languages, chinese_script_preference, front_app)
+            context_premise(
+                working_languages,
+                chinese_script_preference,
+                output_language_preference,
+                front_app,
+            )
         {
             system_prompt = format!("{}\n\n{}", premise, system_prompt);
         }
@@ -112,6 +120,7 @@ impl OpenAICompatibleLLMProvider {
         messages: &[QaChatMessage],
         working_languages: &[String],
         chinese_script_preference: ChineseScriptPreference,
+        output_language_preference: OutputLanguagePreference,
         front_app: Option<&str>,
         on_delta: F,
         should_cancel: C,
@@ -122,7 +131,12 @@ impl OpenAICompatibleLLMProvider {
     {
         let mut system_prompt = prompts::qa_system_prompt();
         if let Some(premise) =
-            context_premise(working_languages, chinese_script_preference, front_app)
+            context_premise(
+                working_languages,
+                chinese_script_preference,
+                output_language_preference,
+                front_app,
+            )
         {
             system_prompt = format!("{}\n\n{}", premise, system_prompt);
         }
@@ -138,11 +152,19 @@ impl OpenAICompatibleLLMProvider {
         target_language: &str,
         working_languages: &[String],
         chinese_script_preference: ChineseScriptPreference,
+        _output_language_preference: OutputLanguagePreference,
         front_app: Option<&str>,
     ) -> Result<String, LLMError> {
         let mut system_prompt = prompts::translate_system_prompt(target_language);
+        // 翻译模式必须以 target_language 为唯一输出语言约束，避免和 UI 驱动的
+        // output_language_preference 发生冲突（例如 UI=ja, target=en）。
         if let Some(premise) =
-            context_premise(working_languages, chinese_script_preference, front_app)
+            context_premise(
+                working_languages,
+                chinese_script_preference,
+                OutputLanguagePreference::Auto,
+                front_app,
+            )
         {
             system_prompt = format!("{}\n\n{}", premise, system_prompt);
         }
@@ -390,6 +412,7 @@ fn chat_completions_url(base_url: &str) -> String {
 fn context_premise(
     working_languages: &[String],
     chinese_script_preference: ChineseScriptPreference,
+    output_language_preference: OutputLanguagePreference,
     front_app: Option<&str>,
 ) -> Option<String> {
     let langs: Vec<&str> = working_languages
@@ -411,7 +434,27 @@ fn context_premise(
         ChineseScriptPreference::Auto => None,
     };
 
-    if langs.is_empty() && app.is_none() && script_line.is_none() {
+    let output_language_line = match output_language_preference {
+        OutputLanguagePreference::ZhCn => {
+            Some("最终输出语言偏好：简体中文。若回答可用中文表达，请优先使用简体中文。".to_string())
+        }
+        OutputLanguagePreference::ZhTw => {
+            Some("最終輸出語言偏好：繁體中文。若回答可用中文表達，請優先使用繁體中文。".to_string())
+        }
+        OutputLanguagePreference::En => {
+            Some("Output language preference: English. Prefer English when producing the final answer.".to_string())
+        }
+        OutputLanguagePreference::Ja => {
+            Some("出力言語の優先設定：日本語。最終回答は可能な限り日本語で出力してください。".to_string())
+        }
+        OutputLanguagePreference::Ko => {
+            Some("출력 언어 선호: 한국어. 최종 답변은 가능하면 한국어로 작성해 주세요.".to_string())
+        }
+        OutputLanguagePreference::Auto => None,
+    };
+
+    if langs.is_empty() && app.is_none() && script_line.is_none() && output_language_line.is_none()
+    {
         return None;
     }
 
@@ -430,6 +473,9 @@ fn context_premise(
     if let Some(line) = script_line {
         lines.push(line);
     }
+    if let Some(line) = output_language_line {
+        lines.push(line);
+    }
     Some(lines.join("\n"))
 }
 
@@ -1016,6 +1062,7 @@ mod tests {
                 &[],
                 &[],
                 ChineseScriptPreference::Auto,
+                OutputLanguagePreference::Auto,
                 None,
             )
             .await

openless-all/app/src-tauri/src/types.rs

@@ -33,6 +33,18 @@ pub enum ChineseScriptPreference {
     Traditional,
 }
 
+#[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq, Default)]
+#[serde(rename_all = "camelCase")]
+pub enum OutputLanguagePreference {
+    #[default]
+    Auto,
+    ZhCn,
+    ZhTw,
+    En,
+    Ja,
+    Ko,
+}
+
 #[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq)]
 #[serde(rename_all = "camelCase")]
 pub enum InsertStatus {
@@ -131,6 +143,10 @@ pub struct UserPreferences {
     /// 由前端「界面语言」选择同步驱动（简体/繁体），详见 issue #259。
     #[serde(default)]
     pub chinese_script_preference: ChineseScriptPreference,
+    /// 最终输出语言偏好（不额外暴露为 UI 开关）：
+    /// 由前端「界面语言」选择同步驱动：zh-CN/zh-TW/en/ja/ko，其他为 Auto。
+    #[serde(default)]
+    pub output_language_preference: OutputLanguagePreference,
     /// 划词语音问答（QA）的全局快捷键。`None` = 关闭功能；`Some(...)` 时
     /// coordinator 用 global-hotkey crate 注册组合键（modifier + 主键）。
     /// 默认 Cmd+Shift+; (macOS) / Ctrl+Shift+; (Windows)。详见 issue #118。
@@ -194,6 +210,7 @@ impl Default for UserPreferences {
             working_languages: default_working_languages(),
             translation_target_language: String::new(),
             chinese_script_preference: ChineseScriptPreference::Auto,
+            output_language_preference: OutputLanguagePreference::Auto,
             qa_hotkey: default_qa_hotkey(),
             qa_save_history: false,
             local_asr_active_model: default_local_asr_model(),

openless-all/app/src/components/SettingsModal.tsx

@@ -14,6 +14,7 @@ import { openExternal } from '../lib/ipc';
 import {
   FOLLOW_SYSTEM,
   getLocalePreference,
+  outputPrefsForLocale,
   setLocalePreference,
   type SupportedLocale,
 } from '../i18n';
@@ -318,11 +319,15 @@ function LanguagePicker() {
   const apply = async (next: SupportedLocale | typeof FOLLOW_SYSTEM) => {
     setPref(next);
     const resolved = await setLocalePreference(next);
-    const chineseScriptPreference =
-      resolved === 'zh-CN' ? 'simplified' : resolved === 'zh-TW' ? 'traditional' : 'auto';
+    const localePrefs = outputPrefsForLocale(resolved);
     await updatePrefs(current => {
-      if (current.chineseScriptPreference === chineseScriptPreference) return current;
-      return { ...current, chineseScriptPreference };
+      if (
+        current.chineseScriptPreference === localePrefs.chineseScriptPreference &&
+        current.outputLanguagePreference === localePrefs.outputLanguagePreference
+      ) {
+        return current;
+      }
+      return { ...current, ...localePrefs };
     });
   };
 
@@ -343,6 +348,8 @@ function LanguagePicker() {
       <option value="zh-CN">{t('settings.language.zh')}</option>
       <option value="zh-TW">{t('settings.language.zhTW')}</option>
       <option value="en">{t('settings.language.en')}</option>
+      <option value="ja">{t('settings.language.ja')}</option>
+      <option value="ko">{t('settings.language.ko')}</option>
     </select>
   );
 }

openless-all/app/src/i18n/en.ts

@@ -403,6 +403,8 @@ export const en: typeof zhCN = {
       zh: '简体中文',
       zhTW: '繁體中文',
       en: 'English',
+      ja: '日本語',
+      ko: '한국어',
       restartHint: 'Some native menus (system tray, etc.) may require an app restart to fully switch.',
     },
     about: {

openless-all/app/src/i18n/index.ts

@@ -11,10 +11,13 @@
 import i18n from 'i18next';
 import { initReactI18next } from 'react-i18next';
 import { en } from './en';
+import { ja } from './ja';
+import { ko } from './ko';
 import { zhCN } from './zh-CN';
 import { zhTW } from './zh-TW';
+import type { UserPreferences } from '../lib/types';
 
-export const SUPPORTED_LOCALES = ['zh-CN', 'zh-TW', 'en'] as const;
+export const SUPPORTED_LOCALES = ['zh-CN', 'zh-TW', 'en', 'ja', 'ko'] as const;
 export type SupportedLocale = (typeof SUPPORTED_LOCALES)[number];
 
 export const LOCALE_STORAGE_KEY = 'ol.locale';
@@ -27,6 +30,8 @@ function detectSystemLocale(): SupportedLocale {
     if (nav.includes('hant') || nav.includes('tw') || nav.includes('hk') || nav.includes('mo')) return 'zh-TW';
     return 'zh-CN';
   }
+  if (nav.startsWith('ja')) return 'ja';
+  if (nav.startsWith('ko')) return 'ko';
   return 'en';
 }
 
@@ -38,7 +43,7 @@ function resolveLocalePreference(pref: SupportedLocale | typeof FOLLOW_SYSTEM_VA
 function getStoredLocale(): SupportedLocale | null {
   if (typeof window === 'undefined') return null;
   const raw = window.localStorage.getItem(LOCALE_STORAGE_KEY);
-  return raw === 'zh-CN' || raw === 'zh-TW' || raw === 'en' ? raw : null;
+  return raw === 'zh-CN' || raw === 'zh-TW' || raw === 'en' || raw === 'ja' || raw === 'ko' ? raw : null;
 }
 
 const initialLng: SupportedLocale = getStoredLocale() ?? detectSystemLocale();
@@ -48,6 +53,8 @@ void i18n.use(initReactI18next).init({
     'zh-CN': { translation: zhCN },
     'zh-TW': { translation: zhTW },
     en: { translation: en },
+    ja: { translation: ja },
+    ko: { translation: ko },
   },
   lng: initialLng,
   fallbackLng: 'zh-CN',
@@ -85,3 +92,42 @@ export async function setLocalePreference(
 }
 
 export const FOLLOW_SYSTEM = FOLLOW_SYSTEM_VALUE;
+
+export function outputPrefsForLocale(
+  resolved: SupportedLocale,
+): Pick<UserPreferences, 'chineseScriptPreference' | 'outputLanguagePreference'> {
+  if (resolved === 'zh-CN') {
+    return {
+      chineseScriptPreference: 'simplified',
+      outputLanguagePreference: 'zhCn',
+    };
+  }
+  if (resolved === 'zh-TW') {
+    return {
+      chineseScriptPreference: 'traditional',
+      outputLanguagePreference: 'zhTw',
+    };
+  }
+  if (resolved === 'en') {
+    return {
+      chineseScriptPreference: 'auto',
+      outputLanguagePreference: 'en',
+    };
+  }
+  if (resolved === 'ja') {
+    return {
+      chineseScriptPreference: 'auto',
+      outputLanguagePreference: 'ja',
+    };
+  }
+  if (resolved === 'ko') {
+    return {
+      chineseScriptPreference: 'auto',
+      outputLanguagePreference: 'ko',
+    };
+  }
+  return {
+    chineseScriptPreference: 'auto',
+    outputLanguagePreference: 'auto',
+  };
+}

openless-all/app/src/i18n/ja.ts

@@ -0,0 +1,35 @@
+import type { zhCN } from './zh-CN';
+import { en } from './en';
+
+// Japanese locale scaffold (incremental translation over English baseline).
+export const ja: typeof zhCN = {
+  ...en,
+  app: {
+    ...en.app,
+    tagline: '自然に話し、きれいに書く',
+  },
+  settings: {
+    ...en.settings,
+    language: {
+      ...en.settings.language,
+      title: '表示言語',
+      desc: 'UI の表示言語を切り替えます。現在のセッションに即時反映され、次回起動時も維持されます。',
+      label: '言語',
+      labelDesc: '「システムに従う」を選ぶと OS の言語に合わせます。',
+      followSystem: 'システムに従う',
+      zh: '简体中文',
+      zhTW: '繁體中文',
+      en: 'English',
+      ja: '日本語',
+      ko: '한국어',
+      restartHint: '一部のネイティブメニュー（トレイ等）は再起動後に反映されます。',
+    },
+  },
+  modal: {
+    ...en.modal,
+    personalize: {
+      ...en.modal.personalize,
+      language: '表示言語',
+    },
+  },
+};

openless-all/app/src/i18n/ko.ts

@@ -0,0 +1,35 @@
+import type { zhCN } from './zh-CN';
+import { en } from './en';
+
+// Korean locale scaffold (incremental translation over English baseline).
+export const ko: typeof zhCN = {
+  ...en,
+  app: {
+    ...en.app,
+    tagline: '자연스럽게 말하고, 정확하게 작성하세요',
+  },
+  settings: {
+    ...en.settings,
+    language: {
+      ...en.settings.language,
+      title: '인터페이스 언어',
+      desc: 'UI 표시 언어를 전환합니다. 현재 세션에 즉시 반영되며 다음 실행에도 유지됩니다.',
+      label: '언어',
+      labelDesc: '"시스템 따라가기"를 선택하면 OS 언어를 따릅니다.',
+      followSystem: '시스템 따라가기',
+      zh: '简体中文',
+      zhTW: '繁體中文',
+      en: 'English',
+      ja: '日本語',
+      ko: '한국어',
+      restartHint: '일부 네이티브 메뉴(트레이 등)는 앱 재시작 후 반영될 수 있습니다.',
+    },
+  },
+  modal: {
+    ...en.modal,
+    personalize: {
+      ...en.modal.personalize,
+      language: '인터페이스 언어',
+    },
+  },
+};

openless-all/app/src/i18n/zh-CN.ts

@@ -401,6 +401,8 @@ export const zhCN = {
       zh: '简体中文',
       zhTW: '繁體中文',
       en: 'English',
+      ja: '日本語',
+      ko: '한국어',
       restartHint: '部分原生菜单（系统托盘等）可能需要重启 App 才会切换。',
     },
     about: {

openless-all/app/src/i18n/zh-TW.ts

@@ -403,6 +403,8 @@ export const zhTW: typeof zhCN = {
       zh: '簡體中文',
       zhTW: '繁體中文',
       en: 'English',
+      ja: '日本語',
+      ko: '한국어',
       restartHint: '部分原生菜單（系統托盤等）可能需要重啓 App 纔會切換。',
     },
     about: {

openless-all/app/src/lib/ipc.ts

@@ -52,6 +52,7 @@ const mockSettings: UserPreferences = {
   workingLanguages: ['简体中文'],
   translationTargetLanguage: '',
   chineseScriptPreference: 'auto',
+  outputLanguagePreference: 'auto',
   qaHotkey: { primary: ';', modifiers: ['cmd', 'shift'] },
   qaSaveHistory: false,
   localAsrActiveModel: 'qwen3-asr-0.6b',

openless-all/app/src/lib/types.ts

@@ -122,6 +122,8 @@ export interface UserPreferences {
   translationTargetLanguage: string;
   /** 中文输出字形偏好：由界面语言（简/繁）自动同步，不单独暴露设置项。 */
   chineseScriptPreference: 'auto' | 'simplified' | 'traditional';
+  /** 最终输出语言偏好：由界面语言自动同步，不单独暴露设置项。 */
+  outputLanguagePreference: 'auto' | 'zhCn' | 'zhTw' | 'en' | 'ja' | 'ko';
   /** 划词语音问答快捷键。null = 未启用。详见 issue #118。 */
   qaHotkey: QaHotkeyBinding | null;
   /** 是否把 Q&A 历史写到本地存档。详见 issue #118。 */

openless-all/app/src/pages/Settings.tsx

@@ -38,6 +38,7 @@ import { useHotkeySettings } from '../state/HotkeySettingsContext';
 import i18n, {
   FOLLOW_SYSTEM,
   getLocalePreference,
+  outputPrefsForLocale,
   setLocalePreference,
   type SupportedLocale,
 } from '../i18n';
@@ -1098,11 +1099,15 @@ function LanguageSection() {
   const apply = async (next: SupportedLocale | typeof FOLLOW_SYSTEM) => {
     setPref(next);
     const resolved = await setLocalePreference(next);
-    const chineseScriptPreference =
-      resolved === 'zh-CN' ? 'simplified' : resolved === 'zh-TW' ? 'traditional' : 'auto';
+    const localePrefs = outputPrefsForLocale(resolved);
     await updatePrefs(current => {
-      if (current.chineseScriptPreference === chineseScriptPreference) return current;
-      return { ...current, chineseScriptPreference };
+      if (
+        current.chineseScriptPreference === localePrefs.chineseScriptPreference &&
+        current.outputLanguagePreference === localePrefs.outputLanguagePreference
+      ) {
+        return current;
+      }
+      return { ...current, ...localePrefs };
     });
   };
 
@@ -1120,6 +1125,8 @@ function LanguageSection() {
           <option value="zh-CN">{t('settings.language.zh')}</option>
           <option value="zh-TW">{t('settings.language.zhTW')}</option>
           <option value="en">{t('settings.language.en')}</option>
+          <option value="ja">{t('settings.language.ja')}</option>
+          <option value="ko">{t('settings.language.ko')}</option>
         </select>
       </SettingRow>
       <div style={{ fontSize: 11, color: 'var(--ol-ink-4)', marginTop: 8, lineHeight: 1.6 }}>

openless-all/app/src/state/HotkeySettingsContext.tsx

@@ -10,7 +10,7 @@ import {
 } from 'react';
 import { getHotkeyCapability, getSettings, setSettings } from '../lib/ipc';
 import type { HotkeyBinding, HotkeyCapability, UserPreferences } from '../lib/types';
-import i18n from '../i18n';
+import i18n, { outputPrefsForLocale, type SupportedLocale } from '../i18n';
 
 interface HotkeySettingsContextValue {
   prefs: UserPreferences | null;
@@ -64,19 +64,29 @@ export function HotkeySettingsProvider({ children }: { children: ReactNode }) {
     const currentPrefs = latestPrefsRef.current;
     if (!currentPrefs) return;
     const lang = (i18n.resolvedLanguage || i18n.language || '').toLowerCase();
-    const nextScript: UserPreferences['chineseScriptPreference'] =
+    const resolvedLocale: SupportedLocale =
       lang.startsWith('zh-tw') || lang.includes('hant')
-        ? 'traditional'
+        ? 'zh-TW'
         : lang.startsWith('zh-cn') || lang.startsWith('zh')
-          ? 'simplified'
-          : 'auto';
-    if (currentPrefs.chineseScriptPreference === nextScript) return;
-    const merged = { ...currentPrefs, chineseScriptPreference: nextScript };
+          ? 'zh-CN'
+          : lang.startsWith('ja')
+            ? 'ja'
+            : lang.startsWith('ko')
+              ? 'ko'
+              : 'en';
+    const nextLocalePrefs = outputPrefsForLocale(resolvedLocale);
+    if (
+      currentPrefs.chineseScriptPreference === nextLocalePrefs.chineseScriptPreference &&
+      currentPrefs.outputLanguagePreference === nextLocalePrefs.outputLanguagePreference
+    ) {
+      return;
+    }
+    const merged = { ...currentPrefs, ...nextLocalePrefs };
     latestPrefsRef.current = merged;
     setPrefs(merged);
-    void queueSetSettings(current => ({ ...current, chineseScriptPreference: nextScript })).catch(
+    void queueSetSettings(current => ({ ...current, ...nextLocalePrefs })).catch(
       error => {
-        console.warn('[settings] sync chineseScriptPreference failed', error);
+        console.warn('[settings] sync locale output preferences failed', error);
       },
     );
   }, [prefs, queueSetSettings]);