refactor(i18n): U34 System & User 模块 i18n 清理 — ProfilePage + ResetPasswordDialog + SystemRolesTab + LdapManagementSection 4 文件 UI 硬编码中文清零

- ProfilePage.tsx: 从零接入 useTranslation，基本信息/安全设置/密码修改/用户名邮箱手机/账号来源 15 处中文→t()
- ResetPasswordDialog.tsx: 从零接入 useTranslation，重置密码标题/描述/LDAP提示/新密码确认密码/确认重置 11 处中文→t()
- SystemRolesTab.tsx: 权限分组标签(云资源/自动化/审批/审计)+toast 校验+confirm description+角色计数+空状态+权限列表计数+编码标签+尾部文案 12 处中文→t()/i18n.t()
- LdapManagementSection.tsx: 验证按钮+根OU标签+创建按钮×2+导入按钮+编辑用户描述 8 处中文→t()
- 新增 user.profile.* 14键 + user.resetPwd.* 11键 + system.* 16键 共 41 翻译键
- zh/en 7524→7565 +41 对齐
- tsc -b=0, npm build✓ (16.05s), ESLint errors=0/any=0/unused=0, go build=0
- 17/17 集成回归测试通过

frontend/src/components/system/LdapManagementSection.tsx

@@ -204,7 +204,7 @@ export function LdapManagementSection(props: LdapManagementSectionProps) {
                     disabled={ldapUserTesting || !ldapTestUser}
                   >
                     {ldapUserTesting ? <Loader2 className="h-4 w-4 mr-1.5 animate-spin" /> : null}
-                    验证
+                    {t('system.testConnection')}
                   </Button>
                 </div>
               </DialogContent>
@@ -221,7 +221,7 @@ export function LdapManagementSection(props: LdapManagementSectionProps) {
                 <SelectValue placeholder={t('system.selectOu')} />
               </SelectTrigger>
               <SelectContent className="dg-input">
-                <SelectItem value={ldapConfig.base_dn}>根 ({ldapConfig.base_dn})</SelectItem>
+                <SelectItem value={ldapConfig.base_dn}>{t('system.rootOu', { dn: ldapConfig.base_dn })}</SelectItem>
                 {ldapOUs.map((ou: JsonData) => (
                   <SelectItem key={ou.dn} value={ou.dn}>
                     {ou.description ? `${ou.name} (${ou.description})` : ou.name}
@@ -258,7 +258,7 @@ export function LdapManagementSection(props: LdapManagementSectionProps) {
                   </div>
                   <Button className="w-full bg-blue-600 hover:bg-blue-700 text-white" onClick={handleCreateOU} disabled={!ouForm.ou_name || ldapSaving}>
                     {ldapSaving ? <Loader2 className="h-4 w-4 mr-1.5 animate-spin" /> : null}
-                    创建
+                    {t('common.create')}
                   </Button>
                 </div>
               </DialogContent>
@@ -300,7 +300,7 @@ export function LdapManagementSection(props: LdapManagementSectionProps) {
                   </div>
                   <Button className="w-full bg-blue-600 hover:bg-blue-700 text-white" onClick={handleCreateLDAPUser} disabled={!newUser.username || !newUser.password || ldapSaving}>
                     {ldapSaving ? <Loader2 className="h-4 w-4 mr-1.5 animate-spin" /> : null}
-                    创建
+                    {t('common.create')}
                   </Button>
                 </div>
               </DialogContent>
@@ -315,7 +315,7 @@ export function LdapManagementSection(props: LdapManagementSectionProps) {
               disabled={ldapUsers.length === 0 || importing}
             >
               {importing ? <Loader2 className="h-3.5 w-3.5 mr-1 animate-spin" /> : <Download className="h-3.5 w-3.5 mr-1" />}
-              {selectedLDAPUsers.length > 0 ? `导入 (${selectedLDAPUsers.length})` : `导入全部 (${ldapUsers.length})`}
+              {selectedLDAPUsers.length > 0 ? t('system.importSelected', { count: selectedLDAPUsers.length }) : t('system.importAll', { count: ldapUsers.length })}
             </Button>
           </div>
 
@@ -427,7 +427,7 @@ export function LdapManagementSection(props: LdapManagementSectionProps) {
               {t('system.editLdapUser')}
             </DialogTitle>
             <DialogDescription className="dg-text-muted">
-              修改 {editLdapUser?.uid} 的属性
+              {t('system.editLdapUserDesc', { uid: editLdapUser?.uid })}
             </DialogDescription>
           </DialogHeader>
           {editLdapUser && (

frontend/src/components/system/ResetPasswordDialog.tsx

@@ -1,5 +1,6 @@
 // 管理员重置用户密码弹窗 // Logan.Li
 import { useState } from 'react';
+import { useTranslation } from 'react-i18next';
 import { Button } from '@/components/ui/button';
 import { Input } from '@/components/ui/input';
 import { Label } from '@/components/ui/label';
@@ -17,6 +18,7 @@ interface ResetPasswordDialogProps {
 }
 
 export function ResetPasswordDialog({ user, onClose }: ResetPasswordDialogProps) {
+  const { t } = useTranslation();
   const { toast } = useToast();
   const [password, setPassword] = useState('');
   const [confirm, setConfirm] = useState('');
@@ -30,12 +32,12 @@ export function ResetPasswordDialog({ user, onClose }: ResetPasswordDialogProps)
     setSaving(true);
     try {
       await userApi.resetUserPassword(user.id, password);
-      toast({ title: '密码已重置', description: `用户 ${user.nickname || user.username} 的新密码已生效` });
+      toast({ title: t('user.resetPwd.success'), description: t('user.resetPwd.successDesc', { name: user.nickname || user.username }) });
       setPassword('');
       setConfirm('');
       onClose();
     } catch (e: unknown) {
-      toast({ title: '重置失败', description: getErrorMessage(e), variant: 'destructive' });
+      toast({ title: t('user.resetPwd.failed'), description: getErrorMessage(e), variant: 'destructive' });
     } finally {
       setSaving(false);
     }
@@ -47,34 +49,34 @@ export function ResetPasswordDialog({ user, onClose }: ResetPasswordDialogProps)
         <DialogHeader>
           <DialogTitle className="text-[var(--dg-text-primary)] flex items-center gap-2">
             <Key className="h-5 w-5 text-[var(--dg-blue)]" />
-            重置密码
+            {t('user.resetPwd.title')}
           </DialogTitle>
           <DialogDescription className="text-[var(--dg-text-muted)]">
-            {user ? `为「${user.nickname || user.username}」设置新密码` : ''}
+            {user ? t('user.resetPwd.desc', { name: user.nickname || user.username }) : ''}
           </DialogDescription>
         </DialogHeader>
 
         {isLdap ? (
-          <p className="text-sm dg-text-yellow/90 py-2">LDAP 用户请在 LDAP 目录中管理密码，不支持本地重置。</p>
+          <p className="text-sm dg-text-yellow/90 py-2">{t('user.resetPwd.ldapHint')}</p>
         ) : (
           <div className="space-y-3 py-1">
             <div>
-              <Label className="text-xs text-[var(--dg-text-muted)]">新密码</Label>
+              <Label className="text-xs text-[var(--dg-text-muted)]">{t('user.resetPwd.newPwd')}</Label>
               <Input
                 type="password"
                 value={password}
                 onChange={e => setPassword(e.target.value)}
-                placeholder="至少 6 位"
+                placeholder={t('user.resetPwd.newPwdPlaceholder')}
                 className="mt-1 h-9 bg-[var(--dg-bg-tertiary)] border-[var(--dg-border)]"
               />
             </div>
             <div>
-              <Label className="text-xs text-[var(--dg-text-muted)]">确认密码</Label>
+              <Label className="text-xs text-[var(--dg-text-muted)]">{t('user.resetPwd.confirmPwd')}</Label>
               <Input
                 type="password"
                 value={confirm}
                 onChange={e => setConfirm(e.target.value)}
-                placeholder="再次输入新密码"
+                placeholder={t('user.resetPwd.confirmPlaceholder')}
                 className="mt-1 h-9 bg-[var(--dg-bg-tertiary)] border-[var(--dg-border)]"
               />
             </div>
@@ -82,11 +84,11 @@ export function ResetPasswordDialog({ user, onClose }: ResetPasswordDialogProps)
         )}
 
         <DialogFooter>
-          <Button variant="outline" className="border-[var(--dg-border)]" onClick={onClose}>取消</Button>
+          <Button variant="outline" className="border-[var(--dg-border)]" onClick={onClose}>{t('common.cancel')}</Button>
           {!isLdap && (
             <Button onClick={handleReset} disabled={!canSubmit || saving} className="bg-[var(--dg-blue)] hover:opacity-90">
               {saving ? <Loader2 className="h-4 w-4 animate-spin mr-1" /> : null}
-              确认重置
+              {t('user.resetPwd.confirm')}
             </Button>
           )}
         </DialogFooter>

frontend/src/components/system/SystemRolesTab.tsx

@@ -35,14 +35,14 @@ const ROLE_ICONS: Record<string, string> = {
 const PERM_MODULE_GROUPS: { label: string; prefixes: string[] }[] = [
   { label: i18n.t('menu.dashboard'), prefixes: ['dashboard:'] },
   { label: i18n.t('menu.assets'), prefixes: ['server:'] },
-  { label: '云资源', prefixes: ['cloud:'] },
+  { label: i18n.t('system.permCloudResource'), prefixes: ['cloud:'] },
   { label: 'K8s', prefixes: ['k8s:'] },
   { label: i18n.t('common.publish'), prefixes: ['deploy:'] },
   { label: i18n.t('monitor.hostDashboard.monitor'), prefixes: ['monitor:', 'agent:'] },
-  { label: '自动化', prefixes: ['auto:'] },
+  { label: i18n.t('system.permAutomation'), prefixes: ['auto:'] },
   { label: 'AI', prefixes: ['aiops:'] },
-  { label: '审批', prefixes: ['approval:'] },
-  { label: '审计', prefixes: ['audit:'] },
+  { label: i18n.t('system.permApproval'), prefixes: ['approval:'] },
+  { label: i18n.t('system.permAudit'), prefixes: ['audit:'] },
   { label: i18n.t('common.system3'), prefixes: ['system:'] },
 ];
 
@@ -138,8 +138,8 @@ export function SystemRolesTab({ selectedRole, setSelectedRole }: SystemRolesTab
   };
 
   const handleSubmit = async () => {
-    if (!form.name.trim()) { toast.error('请输入角色名称'); return; }
-    if (!form.code.trim()) { toast.error('请输入角色编码'); return; }
+    if (!form.name.trim()) { toast.error(t('system.roleNameRequired')); return; }
+    if (!form.code.trim()) { toast.error(t('system.roleCodeRequired')); return; }
     setSaving(true);
     try {
       const payload = {
@@ -171,7 +171,7 @@ export function SystemRolesTab({ selectedRole, setSelectedRole }: SystemRolesTab
     }
     const ok = await confirm({
       title: t('system.deleteRole'),
-      description: `确认删除角色「${role.name}」吗？该操作不可恢复。`,
+      description: t('system.confirmDeleteRoleDesc', { name: role.name }),
       confirmText: t('common.delete'),
       variant: 'destructive',
     });
@@ -192,12 +192,12 @@ export function SystemRolesTab({ selectedRole, setSelectedRole }: SystemRolesTab
         <ShieldCheck className="h-5 w-5 dg-text-blue shrink-0 mt-0.5" />
         <div className="text-sm text-[var(--dg-text-secondary)] space-y-1">
           <p className="font-medium text-[var(--dg-text-primary)]">{t('system.permHowEffect')}</p>
-          <p>{t('system.permEffectDesc')}<strong className="text-[var(--dg-text-primary)]">{t('system.permBackendAuth')}</strong>{t('monitor.logCenterArch.connector')}<strong className="text-[var(--dg-text-primary)]">{t('system.permEffectFrontend')}</strong>，修改后用户需重新登录生效。</p>
+          <p>{t('system.permEffectDesc')}<strong className="text-[var(--dg-text-primary)]">{t('system.permBackendAuth')}</strong>{t('monitor.logCenterArch.connector')}<strong className="text-[var(--dg-text-primary)]">{t('system.permEffectFrontend')}</strong>{t('system.permEffectTrailing')}</p>
         </div>
       </div>
 
       <div className="flex items-center justify-end gap-2">
-        <span className="text-xs text-[var(--dg-text-muted)]">{roles.length} 个角色</span>
+        <span className="text-xs text-[var(--dg-text-muted)]">{t('system.roleCount', { count: roles.length })}</span>
         <Button className="bg-blue-600 hover:bg-blue-700 text-white" onClick={openCreate}>
           <Plus className="h-4 w-4 mr-2" />{t('pipeline.newRole')}
         </Button>
@@ -210,7 +210,7 @@ export function SystemRolesTab({ selectedRole, setSelectedRole }: SystemRolesTab
       ) : roles.length === 0 ? (
         <div className="flex flex-col items-center justify-center py-16 text-[var(--dg-text-muted)]">
           <Shield className="h-10 w-10 mb-3 opacity-40" />
-          <p className="text-sm">暂无角色数据</p>
+          <p className="text-sm">{t('system.noRoleData')}</p>
         </div>
       ) : (
         <div className="grid grid-cols-1 lg:grid-cols-2 gap-4">
@@ -321,7 +321,7 @@ function RoleDetailDialog({
               </Badge>
             )}
           </DialogTitle>
-          <DialogDescription className="text-[var(--dg-text-muted)]">编码：{role?.code}</DialogDescription>
+          <DialogDescription className="text-[var(--dg-text-muted)]">{t('system.roleCodeLabel', { code: role?.code })}</DialogDescription>
         </DialogHeader>
         <div className="space-y-4">
           <div className="rounded-lg bg-[var(--dg-bg-tertiary)] p-4">
@@ -330,7 +330,7 @@ function RoleDetailDialog({
           </div>
           <div>
             <h4 className="text-sm font-medium text-[var(--dg-text-primary)] mb-2">
-              权限列表 ({role?.permissions?.length || 0} 项)
+              {t('system.permListCount', { count: role?.permissions?.length || 0 })}
             </h4>
             {role && (role.permissions as string[]).length > 0 ? (
               <div className="flex flex-wrap gap-2 max-h-60 overflow-y-auto">