adminfront 상단 화면 i18n 정리

adminfront/src/features/auth/AuthPage.tsx

@@ -1,4 +1,5 @@
 import { KeyRound } from "lucide-react";
+import { t } from "../../lib/i18n";
 import PermissionChecker from "./components/PermissionChecker";
 
 function AuthPage() {
@@ -6,15 +7,15 @@ function AuthPage() {
     <div className="space-y-6">
       <div className="flex flex-wrap items-end justify-between gap-4">
         <div className="space-y-1">
-          <p className="text-xs font-semibold uppercase tracking-[0.18em] text-muted-foreground">
-            Admin auth
-          </p>
           <h2 className="flex items-center gap-2 text-2xl font-semibold tracking-tight">
             <KeyRound size={22} className="text-primary" />
-            인증가드
+            {t("ui.admin.auth_guard.title", "Auth Guard")}
           </h2>
           <p className="text-sm text-muted-foreground">
-            관리자 권한과 ReBAC 관계를 실제 정책 엔진 기준으로 확인합니다.
+            {t(
+              "ui.admin.auth_guard.subtitle",
+              "Verify admin privileges and ReBAC relationships against the policy engine.",
+            )}
           </p>
         </div>
       </div>