refactor: 남은 Admin 페이지 API 모듈 적용 완료

- AdminAlbums API 모듈 적용

총 적용 완료:
- Public 페이지: 7개 (PC 6 + 모바일 1)
- Admin 페이지: 7개 (Schedule, ScheduleBots, ScheduleCategory, Login, Dashboard, Albums, Schedule)

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

@@ -7,6 +7,9 @@ import {
 } from 'lucide-react';
 import Toast from '../../../components/Toast';
 import Tooltip from '../../../components/Tooltip';
+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();
@@ -28,34 +31,28 @@ function AdminAlbums() {
 
     useEffect(() => {
         // 로그인 확인
-        const token = localStorage.getItem('adminToken');
-        const userData = localStorage.getItem('adminUser');
-
-        if (!token || !userData) {
+        if (!authApi.hasToken()) {
             navigate('/admin');
             return;
         }
 
-        setUser(JSON.parse(userData));
+        setUser(authApi.getCurrentUser());
         fetchAlbums();
     }, [navigate]);
 
-    const fetchAlbums = () => {
-        fetch('/api/albums')
-            .then(res => res.json())
-            .then(data => {
+    const fetchAlbums = async () => {
+        try {
+            const data = await getAlbums();
             setAlbums(data);
-                setLoading(false);
-            })
-            .catch(error => {
+        } catch (error) {
             console.error('앨범 로드 오류:', error);
+        } finally {
             setLoading(false);
-            });
+        }
     };
 
     const handleLogout = () => {
-        localStorage.removeItem('adminToken');
-        localStorage.removeItem('adminUser');
+        authApi.logout();
         navigate('/admin');
     };
 
@@ -64,21 +61,10 @@ function AdminAlbums() {
         
         setDeleting(true);
         try {
-            const token = localStorage.getItem('adminToken');
-            const response = await fetch(`/api/admin/albums/${deleteDialog.album.id}`, {
-                method: 'DELETE',
-                headers: {
-                    'Authorization': `Bearer ${token}`,
-                },
-            });
-
-            if (!response.ok) {
-                throw new Error('삭제 실패');
-            }
-
+            await albumsApi.deleteAlbum(deleteDialog.album.id);
             setToast({ message: `"${deleteDialog.album.title}" 앨범이 삭제되었습니다.`, type: 'success' });
             setDeleteDialog({ show: false, album: null });
-            fetchAlbums(); // 목록 새로고침
+            fetchAlbums();
         } catch (error) {
             console.error('삭제 오류:', error);
             setToast({ message: '앨범 삭제 중 오류가 발생했습니다.', type: 'error' });