refactor: 어드민 페이지 인증 로직을 useAdminAuth 훅으로 통합

- 8개 어드민 페이지에서 중복된 인증 코드 제거
- localStorage 직접 접근 → useAdminAuth 훅 사용
- authApi.hasToken()/verifyToken() 호출 제거
- 일관된 인증 상태 관리 (5분 캐시, 자동 리다이렉트)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/src/pages/pc/admin/AdminAlbumForm.jsx

@@ -8,6 +8,7 @@ import {
 import Toast from '../../../components/Toast';
 import CustomDatePicker from '../../../components/admin/CustomDatePicker';
 import AdminLayout from '../../../components/admin/AdminLayout';
+import useAdminAuth from '../../../hooks/useAdminAuth';
 import useToast from '../../../hooks/useToast';
 
 // 커스텀 드롭다운 컴포넌트
@@ -79,8 +80,8 @@ function AdminAlbumForm() {
     const { id } = useParams();
     const isEditMode = !!id;
     const coverInputRef = useRef(null);
+    const { user, isAuthenticated } = useAdminAuth();
 
-    const [user, setUser] = useState(null);
     const [loading, setLoading] = useState(false);
     const [saving, setSaving] = useState(false);
     const [coverPreview, setCoverPreview] = useState(null);
@@ -101,18 +102,10 @@ function AdminAlbumForm() {
 
     const [tracks, setTracks] = useState([]);
 
+    // 수정 모드일 때 앨범 데이터 로드
     useEffect(() => {
-        const token = localStorage.getItem('adminToken');
+        if (!isAuthenticated || !isEditMode) return;
-        const userData = localStorage.getItem('adminUser');
 
-        if (!token || !userData) {
-            navigate('/admin');
-            return;
-        }
-
-        setUser(JSON.parse(userData));
-
-        if (isEditMode) {
         setLoading(true);
         fetch(`/api/albums/${id}`)
             .then(res => res.json())
@@ -138,8 +131,7 @@ function AdminAlbumForm() {
                 console.error('앨범 로드 오류:', error);
                 setLoading(false);
             });
-        }
+    }, [id, isEditMode, isAuthenticated]);
-    }, [id, isEditMode, navigate]);
 
     const handleInputChange = (e) => {
         const { name, value } = e.target;

frontend/src/pages/pc/admin/AdminAlbumPhotos.jsx

@@ -10,8 +10,8 @@ import {
 import Toast from '../../../components/Toast';
 import AdminLayout from '../../../components/admin/AdminLayout';
 import ConfirmDialog from '../../../components/admin/ConfirmDialog';
+import useAdminAuth from '../../../hooks/useAdminAuth';
 import useToast from '../../../hooks/useToast';
-import * as authApi from '../../../api/admin/auth';
 import { getAlbum } from '../../../api/public/albums';
 import { getMembers } from '../../../api/public/members';
 import * as albumsApi from '../../../api/admin/albums';
@@ -22,11 +22,11 @@ function AdminAlbumPhotos() {
     const fileInputRef = useRef(null);
     const photoListRef = useRef(null); // 사진 목록 영역 ref
 
+    const { user, isAuthenticated } = useAdminAuth();
     const [album, setAlbum] = useState(null);
     const [photos, setPhotos] = useState([]);
     const [teasers, setTeasers] = useState([]); // 티저 이미지
     const [loading, setLoading] = useState(true);
-    const [user, setUser] = useState(null);
     const { toast, setToast } = useToast();
     const [selectedPhotos, setSelectedPhotos] = useState([]);
     const [uploading, setUploading] = useState(false);
@@ -143,15 +143,10 @@ function AdminAlbumPhotos() {
     };
 
     useEffect(() => {
-        // 로그인 확인
+        if (isAuthenticated) {
-        if (!authApi.hasToken()) {
-            navigate('/admin');
-            return;
-        }
-
-        setUser(authApi.getCurrentUser());
             fetchAlbumData();
-    }, [navigate, albumId]);
+        }
+    }, [isAuthenticated, albumId]);
 
     const fetchAlbumData = async () => {
         try {

frontend/src/pages/pc/admin/AdminAlbums.jsx

@@ -1,40 +1,32 @@
 import { useState, useEffect } from 'react';
 import { useNavigate, Link } from 'react-router-dom';
-import { motion, AnimatePresence } from 'framer-motion';
+import { motion } from 'framer-motion';
-import { 
+import { Plus, Search, Edit2, Trash2, Image, Music, Home, ChevronRight, Calendar } from 'lucide-react';
-    Plus, Search, Edit2, Trash2, Image, Music,
-    Home, ChevronRight, Calendar, X
-} from 'lucide-react';
 import Toast from '../../../components/Toast';
 import Tooltip from '../../../components/Tooltip';
 import AdminLayout from '../../../components/admin/AdminLayout';
 import ConfirmDialog from '../../../components/admin/ConfirmDialog';
+import useAdminAuth from '../../../hooks/useAdminAuth';
 import useToast from '../../../hooks/useToast';
-import * as authApi from '../../../api/admin/auth';
 import { getAlbums } from '../../../api/public/albums';
 import * as albumsApi from '../../../api/admin/albums';
 
-
 function AdminAlbums() {
     const navigate = useNavigate();
+    const { user, isAuthenticated } = useAdminAuth();
+    const { toast, setToast } = useToast();
+
     const [albums, setAlbums] = useState([]);
     const [loading, setLoading] = useState(true);
     const [searchQuery, setSearchQuery] = useState('');
-    const [user, setUser] = useState(null);
-    const { toast, setToast } = useToast();
     const [deleteDialog, setDeleteDialog] = useState({ show: false, album: null });
     const [deleting, setDeleting] = useState(false);
 
     useEffect(() => {
-        // 로그인 확인
+        if (isAuthenticated) {
-        if (!authApi.hasToken()) {
-            navigate('/admin');
-            return;
-        }
-
-        setUser(authApi.getCurrentUser());
             fetchAlbums();
-    }, [navigate]);
+        }
+    }, [isAuthenticated]);
 
     const fetchAlbums = async () => {
         try {

frontend/src/pages/pc/admin/AdminDashboard.jsx

@@ -1,12 +1,9 @@
 import { useState, useEffect } from 'react';
-import { useNavigate, Link } from 'react-router-dom';
+import { Link } from 'react-router-dom';
 import { motion } from 'framer-motion';
-import { 
+import { Disc3, Calendar, Users, Home, ChevronRight } from 'lucide-react';
-    Disc3, Calendar, Users, 
-    Home, ChevronRight
-} from 'lucide-react';
 import AdminLayout from '../../../components/admin/AdminLayout';
-import * as authApi from '../../../api/admin/auth';
+import useAdminAuth from '../../../hooks/useAdminAuth';
 import { getMembers } from '../../../api/public/members';
 import { getAlbums, getAlbum } from '../../../api/public/albums';
 import { getSchedules } from '../../../api/public/schedules';
@@ -43,8 +40,7 @@ function AnimatedNumber({ value }) {
 }
 
 function AdminDashboard() {
-    const navigate = useNavigate();
+    const { user, isAuthenticated } = useAdminAuth();
-    const [user, setUser] = useState(null);
     const [stats, setStats] = useState({
         albums: 0,
         photos: 0,
@@ -53,24 +49,10 @@ function AdminDashboard() {
     });
 
     useEffect(() => {
-        // 로그인 상태 확인
+        if (isAuthenticated) {
-        if (!authApi.hasToken()) {
-            navigate('/admin');
-            return;
-        }
-
-        setUser(authApi.getCurrentUser());
-
-        // 토큰 유효성 검증
-        authApi.verifyToken()
-            .catch(() => {
-                authApi.logout();
-                navigate('/admin');
-            });
-
-        // 통계 데이터 가져오기
             fetchStats();
-    }, [navigate]);
+        }
+    }, [isAuthenticated]);
 
     const fetchStats = async () => {
         // 각 통계를 개별적으로 가져와서 하나가 실패해도 다른 것은 표시

frontend/src/pages/pc/admin/AdminSchedule.jsx

@@ -14,6 +14,7 @@ import Tooltip from '../../../components/Tooltip';
 import AdminLayout from '../../../components/admin/AdminLayout';
 import ConfirmDialog from '../../../components/admin/ConfirmDialog';
 import useScheduleStore from '../../../stores/useScheduleStore';
+import useAdminAuth from '../../../hooks/useAdminAuth';
 import useToast from '../../../hooks/useToast';
 import { getTodayKST, formatDate } from '../../../utils/date';
 import * as schedulesApi from '../../../api/admin/schedules';
@@ -151,9 +152,10 @@ function AdminSchedule() {
         scrollPosition, setScrollPosition,
     } = useScheduleStore();
     
+    const { user, isAuthenticated } = useAdminAuth();
+
     // 로컬 상태 (페이지 이동 시 유지할 필요 없는 것들)
     const [loading, setLoading] = useState(false);
-    const [user, setUser] = useState(null);
     const { toast, setToast } = useToast();
     const scrollContainerRef = useRef(null);
     const searchContainerRef = useRef(null); // 검색 컨테이너 (외부 클릭 감지용)
@@ -363,15 +365,7 @@ function AdminSchedule() {
     };
 
     useEffect(() => {
-        const token = localStorage.getItem('adminToken');
+        if (!isAuthenticated) return;
-        const userData = localStorage.getItem('adminUser');
-
-        if (!token || !userData) {
-            navigate('/admin');
-            return;
-        }
-
-        setUser(JSON.parse(userData));
 
         // 카테고리 로드
         fetchCategories();
@@ -382,7 +376,7 @@ function AdminSchedule() {
             setToast(JSON.parse(savedToast));
             sessionStorage.removeItem('scheduleToast');
         }
-    }, [navigate]);
+    }, [isAuthenticated]);
 
     
     // 월이 변경될 때마다 일정 로드

frontend/src/pages/pc/admin/AdminScheduleBots.jsx

@@ -8,6 +8,7 @@ import {
 import Toast from '../../../components/Toast';
 import Tooltip from '../../../components/Tooltip';
 import AdminLayout from '../../../components/admin/AdminLayout';
+import useAdminAuth from '../../../hooks/useAdminAuth';
 import useToast from '../../../hooks/useToast';
 import * as botsApi from '../../../api/admin/bots';
 
@@ -43,7 +44,7 @@ const MeilisearchIcon = ({ size = 20 }) => (
 
 function AdminScheduleBots() {
     const navigate = useNavigate();
-    const [user, setUser] = useState(null);
+    const { user, isAuthenticated } = useAdminAuth();
     const { toast, setToast } = useToast();
     const [bots, setBots] = useState([]);
     const [loading, setLoading] = useState(true);
@@ -52,18 +53,11 @@ function AdminScheduleBots() {
     const [quotaWarning, setQuotaWarning] = useState(null); // 할당량 경고 상태
 
     useEffect(() => {
-        const token = localStorage.getItem('adminToken');
+        if (isAuthenticated) {
-        const userData = localStorage.getItem('adminUser');
-
-        if (!token || !userData) {
-            navigate('/admin');
-            return;
-        }
-
-        setUser(JSON.parse(userData));
             fetchBots();
             fetchQuotaWarning();
-    }, [navigate]);
+        }
+    }, [isAuthenticated]);
 
     // 봇 목록 조회
     const fetchBots = async () => {

frontend/src/pages/pc/admin/AdminScheduleCategory.jsx

@@ -6,8 +6,8 @@ import { HexColorPicker } from 'react-colorful';
 import Toast from '../../../components/Toast';
 import AdminLayout from '../../../components/admin/AdminLayout';
 import ConfirmDialog from '../../../components/admin/ConfirmDialog';
+import useAdminAuth from '../../../hooks/useAdminAuth';
 import useToast from '../../../hooks/useToast';
-import * as authApi from '../../../api/admin/auth';
 import * as categoriesApi from '../../../api/admin/categories';
 
 // 기본 색상 (8개)
@@ -38,7 +38,7 @@ const getColorStyle = (colorValue) => {
 
 function AdminScheduleCategory() {
     const navigate = useNavigate();
-    const [user, setUser] = useState(null);
+    const { user, isAuthenticated } = useAdminAuth();
     const [categories, setCategories] = useState([]);
     const [loading, setLoading] = useState(true);
     const { toast, setToast, showSuccess, showError } = useToast();
@@ -55,24 +55,12 @@ function AdminScheduleCategory() {
     // 카스텀 컴러 피커 팝업
     const [colorPickerOpen, setColorPickerOpen] = useState(false);
 
-    // 사용자 인증 확인
+    // 카테고리 로드
     useEffect(() => {
-        if (!authApi.hasToken()) {
+        if (isAuthenticated) {
-            navigate('/admin');
-            return;
-        }
-        
-        authApi.verifyToken()
-            .then(data => {
-                if (data.valid) {
-                    setUser(data.user);
             fetchCategories();
-                } else {
-                    navigate('/admin');
         }
-            })
+    }, [isAuthenticated]);
-            .catch(() => navigate('/admin'));
-    }, [navigate]);
 
     // 카테고리 목록 조회
     const fetchCategories = async () => {

frontend/src/pages/pc/admin/AdminScheduleForm.jsx

@@ -28,8 +28,8 @@ import CustomDatePicker from "../../../components/admin/CustomDatePicker";
 import CustomTimePicker from "../../../components/admin/CustomTimePicker";
 import AdminLayout from "../../../components/admin/AdminLayout";
 import ConfirmDialog from "../../../components/admin/ConfirmDialog";
+import useAdminAuth from "../../../hooks/useAdminAuth";
 import useToast from "../../../hooks/useToast";
-import * as authApi from "../../../api/admin/auth";
 import * as categoriesApi from "../../../api/admin/categories";
 import * as schedulesApi from "../../../api/admin/schedules";
 import { getMembers } from "../../../api/public/members";
@@ -38,8 +38,8 @@ function AdminScheduleForm() {
   const navigate = useNavigate();
   const { id } = useParams();
   const isEditMode = !!id;
+  const { user, isAuthenticated } = useAdminAuth();
 
-  const [user, setUser] = useState(null);
   const { toast, setToast } = useToast();
   const [loading, setLoading] = useState(false);
   const [members, setMembers] = useState([]);
@@ -147,12 +147,8 @@ function AdminScheduleForm() {
   };
 
   useEffect(() => {
-    if (!authApi.hasToken()) {
+    if (!isAuthenticated) return;
-      navigate("/admin");
-      return;
-    }
 
-    setUser(authApi.getCurrentUser());
     fetchMembers();
     fetchCategories();
 
@@ -160,7 +156,7 @@ function AdminScheduleForm() {
     if (isEditMode && id) {
       fetchSchedule();
     }
-  }, [navigate, isEditMode, id]);
+  }, [isAuthenticated, isEditMode, id]);
 
   // 기존 일정 데이터 로드 (수정 모드)
   const fetchSchedule = async () => {