feat: integrate i18n support into migration process

- Added internationalization support to the MigrationApp component, enabling dynamic language changes.
- Updated button labels and informational texts to use translation keys for better localization.
- Introduced a language selector to allow users to switch between languages during the migration process.
- Ensured that the migration process waits for i18n initialization before rendering the main application.

src/renderer/src/windows/migrationV2/MigrationApp.tsx

@@ -1,9 +1,10 @@
-import { Button } from '@cherrystudio/ui'
+import { Button, Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@cherrystudio/ui'
 import { AppLogo } from '@renderer/config/env'
 import { loggerService } from '@renderer/services/LoggerService'
 import { Progress, Space, Steps } from 'antd'
 import { AlertTriangle, CheckCircle, CheckCircle2, Database, Loader2, Rocket } from 'lucide-react'
 import React, { useMemo, useState } from 'react'
+import { useTranslation } from 'react-i18next'
 import styled from 'styled-components'
 
 import { MigratorProgressList } from './components'
@@ -14,10 +15,15 @@ import { MigrationIpcChannels } from './types'
 const logger = loggerService.withContext('MigrationApp')
 
 const MigrationApp: React.FC = () => {
+  const { t, i18n } = useTranslation()
   const { progress, lastError, confirmComplete } = useMigrationProgress()
   const actions = useMigrationActions()
   const [isLoading, setIsLoading] = useState(false)
 
+  const handleLanguageChange = (lang: string) => {
+    i18n.changeLanguage(lang)
+  }
+
   const handleStartMigration = async () => {
     setIsLoading(true)
     try {
@@ -118,19 +124,19 @@ const MigrationApp: React.FC = () => {
       case 'introduction':
         return (
           <>
-            <Button onClick={actions.cancel}>取消</Button>
+            <Button onClick={actions.cancel}>{t('migration.buttons.cancel')}</Button>
             <Spacer />
-            <Button onClick={actions.proceedToBackup}>下一步</Button>
+            <Button onClick={actions.proceedToBackup}>{t('migration.buttons.next')}</Button>
           </>
         )
       case 'backup_required':
         return (
           <>
-            <Button onClick={actions.cancel}>取消</Button>
+            <Button onClick={actions.cancel}>{t('migration.buttons.cancel')}</Button>
             <Spacer />
             <Space>
-              <Button onClick={actions.showBackupDialog}>创建备份</Button>
+              <Button onClick={actions.showBackupDialog}>{t('migration.buttons.create_backup')}</Button>
-              <Button onClick={actions.confirmBackup}>我已备份，开始迁移</Button>
+              <Button onClick={actions.confirmBackup}>{t('migration.buttons.confirm_backup')}</Button>
             </Space>
           </>
         )
@@ -139,17 +145,17 @@ const MigrationApp: React.FC = () => {
           <ButtonRow>
             <div></div>
             <Button disabled loading>
-              正在备份...
+              {t('migration.buttons.backing_up')}
             </Button>
           </ButtonRow>
         )
       case 'backup_confirmed':
         return (
           <ButtonRow>
-            <Button onClick={actions.cancel}>取消</Button>
+            <Button onClick={actions.cancel}>{t('migration.buttons.cancel')}</Button>
             <Space>
               <Button onClick={handleStartMigration} loading={isLoading}>
-                开始迁移
+                {t('migration.buttons.start_migration')}
               </Button>
             </Space>
           </ButtonRow>
@@ -158,29 +164,29 @@ const MigrationApp: React.FC = () => {
         return (
           <ButtonRow>
             <div></div>
-            <Button disabled>迁移进行中...</Button>
+            <Button disabled>{t('migration.buttons.migrating')}</Button>
           </ButtonRow>
         )
       case 'migration_completed':
         return (
           <ButtonRow>
             <div></div>
-            <Button onClick={confirmComplete}>确定</Button>
+            <Button onClick={confirmComplete}>{t('migration.buttons.confirm')}</Button>
           </ButtonRow>
         )
       case 'completed':
         return (
           <ButtonRow>
             <div></div>
-            <Button onClick={actions.restart}>重启应用</Button>
+            <Button onClick={actions.restart}>{t('migration.buttons.restart')}</Button>
           </ButtonRow>
         )
       case 'error':
         return (
           <ButtonRow>
-            <Button onClick={actions.cancel}>关闭应用</Button>
+            <Button onClick={actions.cancel}>{t('migration.buttons.close')}</Button>
             <Space>
-              <Button onClick={actions.retry}>重新尝试</Button>
+              <Button onClick={actions.retry}>{t('migration.buttons.retry')}</Button>
             </Space>
           </ButtonRow>
         )
@@ -193,7 +199,7 @@ const MigrationApp: React.FC = () => {
     <Container>
       <Header>
         <HeaderLogo src={AppLogo} />
-        <HeaderTitle>数据迁移向导</HeaderTitle>
+        <HeaderTitle>{t('migration.title')}</HeaderTitle>
       </Header>
 
       <MainContent>
@@ -204,9 +210,25 @@ const MigrationApp: React.FC = () => {
               current={currentStep}
               status={stepStatus}
               size="small"
-              items={[{ title: '介绍' }, { title: '备份' }, { title: '迁移' }, { title: '完成' }]}
+              items={[
+                { title: t('migration.stages.introduction') },
+                { title: t('migration.stages.backup') },
+                { title: t('migration.stages.migration') },
+                { title: t('migration.stages.completed') }
+              ]}
             />
           </StepsContainer>
+          <LanguageSelectorContainer>
+            <Select value={i18n.language} onValueChange={handleLanguageChange}>
+              <SelectTrigger size="sm">
+                <SelectValue />
+              </SelectTrigger>
+              <SelectContent>
+                <SelectItem value="zh-CN">中文</SelectItem>
+                <SelectItem value="en-US">English</SelectItem>
+              </SelectContent>
+            </Select>
+          </LanguageSelectorContainer>
         </LeftSidebar>
 
         <RightContent>
@@ -215,46 +237,44 @@ const MigrationApp: React.FC = () => {
 
             {progress.stage === 'introduction' && (
               <InfoCard>
-                <InfoTitle>将数据迁移到新的架构中</InfoTitle>
+                <InfoTitle>{t('migration.introduction.title')}</InfoTitle>
                 <InfoDescription>
-                  Cherry Studio对数据的存储和使用方式进行了重大重构，在新的架构下，效率和安全性将会得到极大提升。
+                  {t('migration.introduction.description_1')}
                   <br />
                   <br />
-                  数据必须进行迁移，才能在新版本中使用。
+                  {t('migration.introduction.description_2')}
                   <br />
                   <br />
-                  我们会指导你完成迁移，迁移过程不会损坏原来的数据，你随时可以取消迁移，并继续使用旧版本。
+                  {t('migration.introduction.description_3')}
                 </InfoDescription>
               </InfoCard>
             )}
 
             {progress.stage === 'backup_required' && (
               <InfoCard variant="warning">
-                <InfoTitle>创建数据备份</InfoTitle>
+                <InfoTitle>{t('migration.backup_required.title')}</InfoTitle>
-                <InfoDescription>
+                <InfoDescription>{t('migration.backup_required.description')}</InfoDescription>
-                  迁移前必须创建数据备份以确保数据安全。请选择备份位置或确认已有最新备份。
-                </InfoDescription>
               </InfoCard>
             )}
 
             {progress.stage === 'backup_progress' && (
               <InfoCard variant="warning">
-                <InfoTitle>准备数据备份</InfoTitle>
+                <InfoTitle>{t('migration.backup_progress.title')}</InfoTitle>
-                <InfoDescription>请选择备份位置，保存后等待备份完成。</InfoDescription>
+                <InfoDescription>{t('migration.backup_progress.description')}</InfoDescription>
               </InfoCard>
             )}
 
             {progress.stage === 'backup_confirmed' && (
               <InfoCard variant="success">
-                <InfoTitle>备份完成</InfoTitle>
+                <InfoTitle>{t('migration.backup_confirmed.title')}</InfoTitle>
-                <InfoDescription>数据备份已完成，现在可以安全地开始迁移。</InfoDescription>
+                <InfoDescription>{t('migration.backup_confirmed.description')}</InfoDescription>
               </InfoCard>
             )}
 
             {progress.stage === 'migration' && (
               <div style={{ width: '100%', maxWidth: '600px', margin: '0 auto' }}>
                 <InfoCard>
-                  <InfoTitle>正在迁移数据...</InfoTitle>
+                  <InfoTitle>{t('migration.migration.title')}</InfoTitle>
                   <InfoDescription>{progress.currentMessage}</InfoDescription>
                 </InfoCard>
                 <ProgressContainer>
@@ -273,8 +293,8 @@ const MigrationApp: React.FC = () => {
             {progress.stage === 'migration_completed' && (
               <div style={{ width: '100%', maxWidth: '600px', margin: '0 auto' }}>
                 <InfoCard variant="success">
-                  <InfoTitle>数据迁移完成！</InfoTitle>
+                  <InfoTitle>{t('migration.migration_completed.title')}</InfoTitle>
-                  <InfoDescription>所有数据已成功迁移到新架构，请点击确定继续。</InfoDescription>
+                  <InfoDescription>{t('migration.migration_completed.description')}</InfoDescription>
                 </InfoCard>
                 <ProgressContainer>
                   <Progress percent={100} strokeColor={getProgressColor()} trailColor="#f0f0f0" />
@@ -287,19 +307,20 @@ const MigrationApp: React.FC = () => {
 
             {progress.stage === 'completed' && (
               <InfoCard variant="success">
-                <InfoTitle>迁移完成</InfoTitle>
+                <InfoTitle>{t('migration.completed.title')}</InfoTitle>
-                <InfoDescription>数据已成功迁移，重启应用后即可正常使用。</InfoDescription>
+                <InfoDescription>{t('migration.completed.description')}</InfoDescription>
               </InfoCard>
             )}
 
             {progress.stage === 'error' && (
               <InfoCard variant="error">
-                <InfoTitle>迁移失败</InfoTitle>
+                <InfoTitle>{t('migration.error.title')}</InfoTitle>
                 <InfoDescription>
-                  迁移过程遇到错误，您可以重新尝试或继续使用之前版本（原始数据完好保存）。
+                  {t('migration.error.description')}
                   <br />
                   <br />
-                  错误信息：{lastError || progress.error || '发生未知错误'}
+                  {t('migration.error.error_prefix')}
+                  {lastError || progress.error || 'Unknown error'}
                 </InfoDescription>
               </InfoCard>
             )}
@@ -385,6 +406,11 @@ const StepsContainer = styled.div`
   }
 `
 
+const LanguageSelectorContainer = styled.div`
+  padding: 16px 24px 24px 24px;
+  border-top: 1px solid #f0f0f0;
+`
+
 const RightContent = styled.div`
   flex: 1;
   display: flex;

src/renderer/src/windows/migrationV2/components/MigratorProgress.tsx

@@ -5,6 +5,7 @@
 
 import { CheckCircle2, Circle, Loader2, XCircle } from 'lucide-react'
 import React from 'react'
+import { useTranslation } from 'react-i18next'
 import styled, { keyframes } from 'styled-components'
 
 import type { MigratorProgress as MigratorProgressType, MigratorStatus } from '../types'
@@ -41,14 +42,13 @@ const SpinningIcon = styled.div`
   animation: ${spin} 1s linear infinite;
 `
 
-const statusTextMap: Record<MigratorStatus, string> = {
-  pending: '等待中',
-  running: '进行中',
-  completed: '完成',
-  failed: '失败'
-}
-
 export const MigratorProgressList: React.FC<Props> = ({ migrators }) => {
+  const { t } = useTranslation()
+
+  const getStatusText = (status: MigratorStatus): string => {
+    return t(`migration.status.${status}`)
+  }
+
   return (
     <Container>
       <List>
@@ -58,7 +58,7 @@ export const MigratorProgressList: React.FC<Props> = ({ migrators }) => {
               <StatusIcon status={migrator.status} />
               <ItemName>{migrator.name}</ItemName>
             </ItemLeft>
-            <ItemStatus status={migrator.status}>{migrator.error || statusTextMap[migrator.status]}</ItemStatus>
+            <ItemStatus status={migrator.status}>{migrator.error || getStatusText(migrator.status)}</ItemStatus>
           </ListItem>
         ))}
       </List>

src/renderer/src/windows/migrationV2/entryPoint.tsx

@@ -9,6 +9,7 @@ import '@ant-design/v5-patch-for-react-19'
 import { loggerService } from '@logger'
 import { createRoot } from 'react-dom/client'
 
+import { initI18n } from './i18n'
 import MigrationApp from './MigrationApp'
 
 // Initialize logger for this window
@@ -16,4 +17,7 @@ loggerService.initWindowSource('MigrationV2')
 
 const root = createRoot(document.getElementById('root') as HTMLElement)
 
-root.render(<MigrationApp />)
+// Wait for i18n to be fully initialized before rendering
+initI18n().then(() => {
+  root.render(<MigrationApp />)
+})

src/renderer/src/windows/migrationV2/i18n/index.ts

@@ -0,0 +1,43 @@
+/**
+ * i18n initialization for migration window
+ * Detects system language independently without relying on preferenceService
+ */
+
+import i18n from 'i18next'
+import { initReactI18next } from 'react-i18next'
+
+import { enUS, zhCN } from './locales'
+
+/**
+ * Detect system language independently
+ * Rule: If system language contains 'zh', use Chinese, otherwise use English
+ */
+function detectLanguage(): 'zh-CN' | 'en-US' {
+  const browserLang = navigator.language || navigator.languages?.[0] || 'en-US'
+
+  // If contains 'zh' (zh, zh-CN, zh-TW, zh-HK, etc.), use Chinese
+  return browserLang.toLowerCase().includes('zh') ? 'zh-CN' : 'en-US'
+}
+
+const language = detectLanguage()
+
+/**
+ * Initialize i18n asynchronously
+ * Must be called and awaited before rendering components
+ */
+const initI18n = async () => {
+  await i18n.use(initReactI18next).init({
+    resources: {
+      'zh-CN': { translation: zhCN },
+      'en-US': { translation: enUS }
+    },
+    lng: language,
+    fallbackLng: 'en-US',
+    interpolation: {
+      escapeValue: false
+    }
+  })
+}
+
+export default i18n
+export { initI18n }

src/renderer/src/windows/migrationV2/i18n/locales.ts

@@ -0,0 +1,139 @@
+/**
+ * Migration window translations
+ * Supports Chinese (zh-CN) and English (en-US)
+ */
+
+export const zhCN = {
+  migration: {
+    title: '数据迁移向导',
+    stages: {
+      introduction: '介绍',
+      backup: '备份',
+      migration: '迁移',
+      completed: '完成'
+    },
+    buttons: {
+      cancel: '取消',
+      next: '下一步',
+      create_backup: '创建备份',
+      confirm_backup: '我已备份，开始迁移',
+      start_migration: '开始迁移',
+      confirm: '确定',
+      restart: '重启应用',
+      retry: '重新尝试',
+      close: '关闭应用',
+      backing_up: '正在备份...',
+      migrating: '迁移进行中...'
+    },
+    status: {
+      pending: '等待中',
+      running: '进行中',
+      completed: '完成',
+      failed: '失败'
+    },
+    introduction: {
+      title: '将数据迁移到新的架构中',
+      description_1:
+        'Cherry Studio对数据的存储和使用方式进行了重大重构，在新的架构下，效率和安全性将会得到极大提升。',
+      description_2: '数据必须进行迁移，才能在新版本中使用。',
+      description_3: '我们会指导你完成迁移，迁移过程不会损坏原来的数据，你随时可以取消迁移，并继续使用旧版本。'
+    },
+    backup_required: {
+      title: '创建数据备份',
+      description: '迁移前必须创建数据备份以确保数据安全。请选择备份位置或确认已有最新备份。'
+    },
+    backup_progress: {
+      title: '准备数据备份',
+      description: '请选择备份位置，保存后等待备份完成。'
+    },
+    backup_confirmed: {
+      title: '备份完成',
+      description: '数据备份已完成，现在可以安全地开始迁移。'
+    },
+    migration: {
+      title: '正在迁移数据...'
+    },
+    migration_completed: {
+      title: '数据迁移完成！',
+      description: '所有数据已成功迁移到新架构，请点击确定继续。'
+    },
+    completed: {
+      title: '迁移完成',
+      description: '数据已成功迁移，重启应用后即可正常使用。'
+    },
+    error: {
+      title: '迁移失败',
+      description: '迁移过程遇到错误，您可以重新尝试或继续使用之前版本（原始数据完好保存）。',
+      error_prefix: '错误信息：'
+    }
+  }
+}
+
+export const enUS = {
+  migration: {
+    title: 'Data Migration Wizard',
+    stages: {
+      introduction: 'Introduction',
+      backup: 'Backup',
+      migration: 'Migration',
+      completed: 'Completed'
+    },
+    buttons: {
+      cancel: 'Cancel',
+      next: 'Next',
+      create_backup: 'Create Backup',
+      confirm_backup: 'I Have Backup, Start Migration',
+      start_migration: 'Start Migration',
+      confirm: 'OK',
+      restart: 'Restart App',
+      retry: 'Retry',
+      close: 'Close App',
+      backing_up: 'Backing up...',
+      migrating: 'Migrating...'
+    },
+    status: {
+      pending: 'Pending',
+      running: 'Running',
+      completed: 'Completed',
+      failed: 'Failed'
+    },
+    introduction: {
+      title: 'Migrate Data to New Architecture',
+      description_1:
+        'Cherry Studio has undergone a major refactoring of data storage and usage. The new architecture will greatly improve efficiency and security.',
+      description_2: 'Data migration is required to use the new version.',
+      description_3:
+        'We will guide you through the migration process. The migration will not damage your original data, and you can cancel at any time and continue using the old version.'
+    },
+    backup_required: {
+      title: 'Create Data Backup',
+      description:
+        'A data backup must be created before migration to ensure data safety. Please select a backup location or confirm you have a recent backup.'
+    },
+    backup_progress: {
+      title: 'Preparing Data Backup',
+      description: 'Please select a backup location, save, and wait for the backup to complete.'
+    },
+    backup_confirmed: {
+      title: 'Backup Completed',
+      description: 'Data backup has been completed. You can now safely start the migration.'
+    },
+    migration: {
+      title: 'Migrating Data...'
+    },
+    migration_completed: {
+      title: 'Data Migration Completed!',
+      description: 'All data has been successfully migrated to the new architecture. Please click OK to continue.'
+    },
+    completed: {
+      title: 'Migration Completed',
+      description: 'Data has been successfully migrated. The application will work normally after restart.'
+    },
+    error: {
+      title: 'Migration Failed',
+      description:
+        'An error occurred during migration. You can retry or continue using the previous version (original data is intact).',
+      error_prefix: 'Error: '
+    }
+  }
+}