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)/proxy-routes/detail/components/auth-section.tsx

@@ -25,37 +25,17 @@ import {
 } from '@/components/ui/select';
 import type { ProxyRouteItem } from '@/lib/services/openflare';
 
+import { useTranslations } from 'next-intl';
+
 import { proxyRouteFormIds } from '../helpers';
 import { useRouteSectionSave } from '../hooks/use-route-section-save';
 import { SectionShell } from './section-shell';
 
-const authSchema = z
-  .object({
-    auth_mode: z.enum(['none', 'basic']),
-    basic_auth_username: z.string(),
-    basic_auth_password: z.string(),
-  })
-  .superRefine((value, context) => {
-    if (value.auth_mode !== 'basic') {
-      return;
-    }
-    if (!value.basic_auth_username.trim()) {
-      context.addIssue({
-        code: z.ZodIssueCode.custom,
-        path: ['basic_auth_username'],
-        message: '请输入账号',
-      });
-    }
-    if (!value.basic_auth_password.trim()) {
-      context.addIssue({
-        code: z.ZodIssueCode.custom,
-        path: ['basic_auth_password'],
-        message: '请输入密码',
-      });
-    }
-  });
-
-type AuthValues = z.infer<typeof authSchema>;
+type AuthValues = {
+  auth_mode: 'none' | 'basic';
+  basic_auth_username: string;
+  basic_auth_password: string;
+};
 
 function resolveAuthMode(route: ProxyRouteItem): AuthValues['auth_mode'] {
   return route.basic_auth_enabled ? 'basic' : 'none';
@@ -72,6 +52,32 @@ export function AuthSection({
   onRouteUpdate,
   onSavingChange,
 }: AuthSectionProps) {
+  const t = useTranslations('proxyRoutes');
+  const authSchema = z
+    .object({
+      auth_mode: z.enum(['none', 'basic']),
+      basic_auth_username: z.string(),
+      basic_auth_password: z.string(),
+    })
+    .superRefine((value, context) => {
+      if (value.auth_mode !== 'basic') {
+        return;
+      }
+      if (!value.basic_auth_username.trim()) {
+        context.addIssue({
+          code: z.ZodIssueCode.custom,
+          path: ['basic_auth_username'],
+          message: t('validation.enterUsername'),
+        });
+      }
+      if (!value.basic_auth_password.trim()) {
+        context.addIssue({
+          code: z.ZodIssueCode.custom,
+          path: ['basic_auth_password'],
+          message: t('validation.enterPassword'),
+        });
+      }
+    });
   const { saving, save } = useRouteSectionSave(
     route,
     onRouteUpdate,
@@ -99,8 +105,8 @@ export function AuthSection({
 
   return (
     <SectionShell
-      title='认证配置'
-      description='配置 Basic Auth 限制未授权访问。PoW 防护请在 WAF 规则组中配置。'
+      title={t('auth')}
+      description={t('authDesc')}
       formId={proxyRouteFormIds.auth}
       saving={saving}
     >
@@ -122,11 +128,11 @@ export function AuthSection({
                       ? values.basic_auth_password.trim()
                       : '',
                 },
-                '认证配置已保存',
+                t('authSaved'),
               );
             },
             () => {
-              toast.error('请检查认证配置表单');
+              toast.error(t('authFormInvalid'));
             },
           )}
         >
@@ -135,7 +141,7 @@ export function AuthSection({
             name='auth_mode'
             render={({ field }) => (
               <FormItem>
-                <FormLabel>认证模式</FormLabel>
+                <FormLabel>{t('authMode')}</FormLabel>
                 <Select
                   value={field.value}
                   onValueChange={(mode) => {
@@ -152,12 +158,12 @@ export function AuthSection({
                     </SelectTrigger>
                   </FormControl>
                   <SelectContent>
-                    <SelectItem value='none'>无认证</SelectItem>
+                    <SelectItem value='none'>{t('authNone')}</SelectItem>
                     <SelectItem value='basic'>Basic Auth</SelectItem>
                   </SelectContent>
                 </Select>
                 <FormDescription>
-                  PoW 防护仅支持在 WAF 规则组中启用并绑定站点。
+                  {t('powHint')}
                 </FormDescription>
                 <FormMessage />
               </FormItem>
@@ -171,7 +177,7 @@ export function AuthSection({
                 name='basic_auth_username'
                 render={({ field }) => (
                   <FormItem>
-                    <FormLabel>账号</FormLabel>
+                    <FormLabel>{t('username')}</FormLabel>
                     <FormControl>
                       <Input placeholder='admin' {...field} />
                     </FormControl>
@@ -185,7 +191,7 @@ export function AuthSection({
                 name='basic_auth_password'
                 render={({ field }) => (
                   <FormItem>
-                    <FormLabel>密码</FormLabel>
+                    <FormLabel>{t('password')}</FormLabel>
                     <FormControl>
                       <Input type='text' placeholder='secret123' {...field} />
                     </FormControl>