feat(frontend): 控制台 next-intl 中英双语

接入无 URL 前缀的 zh-CN/en，顶栏与外观设置可切换语言；选择写入 cookie 后刷新生效。

frontend/app/(main)/config-versions/components/diff-dialog.tsx

@@ -1,6 +1,7 @@
 'use client';
 
 import { Loader2 } from 'lucide-react';
+import { useTranslations } from 'next-intl';
 
 import { Badge } from '@/components/ui/badge';
 import {
@@ -29,12 +30,13 @@ interface DiffDialogProps {
 }
 
 function DiffChipList({ title, items }: { title: string; items: string[] }) {
+  const t = useTranslations('configVersions');
   return (
     <div className='space-y-2'>
       <div className='flex items-center justify-between gap-2'>
         <p className='text-xs font-semibold'>{title}</p>
         <Badge variant='outline' className='text-[10px] rounded-full'>
-          {items.length} 项
+          {t('itemCount', { count: items.length })}
         </Badge>
       </div>
       {items.length > 0 ? (
@@ -50,16 +52,12 @@ function DiffChipList({ title, items }: { title: string; items: string[] }) {
           ))}
         </div>
       ) : (
-        <p className='text-xs text-muted-foreground'>无变更</p>
+        <p className='text-xs text-muted-foreground'>{t('noChange')}</p>
       )}
     </div>
   );
 }
 
-function renderOptionValue(value: string) {
-  return value === '' ? '空' : value;
-}
-
 export function DiffDialog({
   open,
   onOpenChange,
@@ -67,20 +65,19 @@ export function DiffDialog({
   loading,
   error,
 }: DiffDialogProps) {
+  const t = useTranslations('configVersions');
   return (
     <Dialog open={open} onOpenChange={onOpenChange}>
       <DialogContent className='sm:max-w-3xl max-h-[85vh] overflow-y-auto'>
         <DialogHeader>
-          <DialogTitle>配置差异</DialogTitle>
-          <DialogDescription>
-            对比当前待发布配置与已激活版本之间的差异。
-          </DialogDescription>
+          <DialogTitle>{t('diffTitle')}</DialogTitle>
+          <DialogDescription>{t('diffDesc')}</DialogDescription>
         </DialogHeader>
 
         {loading ? (
           <div className='flex items-center justify-center gap-2 py-12 text-sm text-muted-foreground'>
             <Loader2 className='size-4 animate-spin' />
-            正在加载差异数据...
+            {t('loadingDiff')}
           </div>
         ) : error ? (
           <p className='text-sm text-destructive'>{error}</p>
@@ -89,15 +86,15 @@ export function DiffDialog({
             <div className='grid gap-3 sm:grid-cols-2 lg:grid-cols-4'>
               <div className='rounded-lg border border-dashed p-3'>
                 <p className='text-[10px] uppercase tracking-wider text-muted-foreground'>
-                  激活版本
+                  {t('activeVersion')}
                 </p>
                 <p className='mt-1 text-sm font-medium'>
-                  {diff.active_version || '无'}
+                  {diff.active_version || t('none')}
                 </p>
               </div>
               <div className='rounded-lg border border-dashed p-3'>
                 <p className='text-[10px] uppercase tracking-wider text-muted-foreground'>
-                  新增域名
+                  {t('addedDomains')}
                 </p>
                 <p className='mt-1 text-lg font-semibold text-emerald-600'>
                   {diff.added_domains.length}
@@ -105,7 +102,7 @@ export function DiffDialog({
               </div>
               <div className='rounded-lg border border-dashed p-3'>
                 <p className='text-[10px] uppercase tracking-wider text-muted-foreground'>
-                  删除域名
+                  {t('removedDomains')}
                 </p>
                 <p className='mt-1 text-lg font-semibold text-amber-600'>
                   {diff.removed_domains.length}
@@ -113,7 +110,7 @@ export function DiffDialog({
               </div>
               <div className='rounded-lg border border-dashed p-3'>
                 <p className='text-[10px] uppercase tracking-wider text-muted-foreground'>
-                  修改域名
+                  {t('modifiedDomains')}
                 </p>
                 <p className='mt-1 text-lg font-semibold text-blue-600'>
                   {diff.modified_domains.length}
@@ -122,25 +119,38 @@ export function DiffDialog({
             </div>
 
             <div className='grid gap-4 md:grid-cols-3'>
-              <DiffChipList title='新增域名' items={diff.added_domains} />
-              <DiffChipList title='删除域名' items={diff.removed_domains} />
-              <DiffChipList title='修改域名' items={diff.modified_domains} />
+              <DiffChipList
+                title={t('addedDomains')}
+                items={diff.added_domains}
+              />
+              <DiffChipList
+                title={t('removedDomains')}
+                items={diff.removed_domains}
+              />
+              <DiffChipList
+                title={t('modifiedDomains')}
+                items={diff.modified_domains}
+              />
             </div>
 
             <div className='flex flex-wrap gap-2'>
               <Badge
                 variant={diff.main_config_changed ? 'destructive' : 'outline'}
               >
-                主配置 {diff.main_config_changed ? '已变化' : '无变化'}
+                {diff.main_config_changed
+                  ? t('mainChanged')
+                  : t('mainUnchanged')}
               </Badge>
               <Badge
                 variant={diff.waf_config_changed ? 'destructive' : 'outline'}
               >
-                WAF {diff.waf_config_changed ? '已变化' : '无变化'}
+                {diff.waf_config_changed ? t('wafChanged') : t('wafUnchanged')}
               </Badge>
               <Badge variant='outline'>
-                网站数 {diff.active_website_count} →{' '}
-                {diff.current_website_count}
+                {t('websiteDelta', {
+                  from: diff.active_website_count,
+                  to: diff.current_website_count,
+                })}
               </Badge>
             </div>
 
@@ -150,13 +160,13 @@ export function DiffDialog({
                   <TableHeader className='bg-muted/40'>
                     <TableRow className='border-dashed hover:bg-transparent'>
                       <TableHead className='text-xs font-semibold'>
-                        参数
+                        {t('optionKey')}
                       </TableHead>
                       <TableHead className='text-xs font-semibold'>
-                        激活值
+                        {t('activeValue')}
                       </TableHead>
                       <TableHead className='text-xs font-semibold'>
-                        待发布值
+                        {t('pendingValue')}
                       </TableHead>
                     </TableRow>
                   </TableHeader>
@@ -167,10 +177,14 @@ export function DiffDialog({
                           {item.key}
                         </TableCell>
                         <TableCell className='text-xs font-mono text-muted-foreground'>
-                          {renderOptionValue(item.previous_value)}
+                          {item.previous_value === ''
+                            ? t('emptyValue')
+                            : item.previous_value}
                         </TableCell>
                         <TableCell className='text-xs font-mono text-muted-foreground'>
-                          {renderOptionValue(item.current_value)}
+                          {item.current_value === ''
+                            ? t('emptyValue')
+                            : item.current_value}
                         </TableCell>
                       </TableRow>
                     ))}
@@ -179,7 +193,7 @@ export function DiffDialog({
               </div>
             ) : (
               <p className='text-xs text-muted-foreground'>
-                当前无 OpenResty 参数变化。
+                {t('noOptionChanges')}
               </p>
             )}
           </div>