diff --git a/system3-nonconformance/web/ai-assistant.html b/system3-nonconformance/web/ai-assistant.html
index 2ea6c40..b1801a1 100644
--- a/system3-nonconformance/web/ai-assistant.html
+++ b/system3-nonconformance/web/ai-assistant.html
@@ -272,14 +272,14 @@
     </div>
 
     <!-- 스크립트 -->
-    <script src="/static/js/core/permissions.js?v=20260306"></script>
-    <script src="/static/js/components/common-header.js?v=20260306"></script>
-    <script src="/static/js/core/page-manager.js?v=20260306"></script>
-    <script src="/static/js/core/auth-manager.js?v=20260306"></script>
-    <script src="/static/js/utils/issue-helpers.js?v=20260306"></script>
-    <script src="/static/js/utils/toast.js?v=20260306"></script>
-    <script src="/static/js/components/mobile-bottom-nav.js?v=20260306"></script>
-    <script src="/static/js/api.js?v=20260306"></script>
-    <script src="/static/js/pages/ai-assistant.js?v=20260307"></script>
+    <script src="/static/js/core/permissions.js?v=20260308"></script>
+    <script src="/static/js/components/common-header.js?v=20260308"></script>
+    <script src="/static/js/core/page-manager.js?v=20260308"></script>
+    <script src="/static/js/api.js?v=20260308"></script>
+    <script src="/static/js/core/auth-manager.js?v=20260308"></script>
+    <script src="/static/js/utils/issue-helpers.js?v=20260308"></script>
+    <script src="/static/js/utils/toast.js?v=20260308"></script>
+    <script src="/static/js/components/mobile-bottom-nav.js?v=20260308"></script>
+    <script src="/static/js/pages/ai-assistant.js?v=20260308"></script>
 </body>
 </html>
diff --git a/system3-nonconformance/web/issue-view.html b/system3-nonconformance/web/issue-view.html
index b4bebbf..7c5a51f 100644
--- a/system3-nonconformance/web/issue-view.html
+++ b/system3-nonconformance/web/issue-view.html
@@ -106,14 +106,16 @@
     </main>
 
     <!-- Scripts -->
-    <script src="/static/js/date-utils.js?v=20260213"></script>
-    <script src="/static/js/core/permissions.js?v=20260213"></script>
-    <script src="/static/js/components/common-header.js?v=20260213"></script>
-    <script src="/static/js/core/page-manager.js?v=20260213"></script>
-    <script src="/static/js/utils/issue-helpers.js?v=20260213"></script>
-    <script src="/static/js/utils/photo-modal.js?v=20260213"></script>
-    <script src="/static/js/utils/toast.js?v=20260213"></script>
-    <script src="/static/js/components/mobile-bottom-nav.js?v=20260213"></script>
-    <script src="/static/js/pages/issue-view.js?v=20260213"></script>
+    <script src="/static/js/date-utils.js?v=20260308"></script>
+    <script src="/static/js/core/permissions.js?v=20260308"></script>
+    <script src="/static/js/components/common-header.js?v=20260308"></script>
+    <script src="/static/js/core/page-manager.js?v=20260308"></script>
+    <script src="/static/js/api.js?v=20260308"></script>
+    <script src="/static/js/core/auth-manager.js?v=20260308"></script>
+    <script src="/static/js/utils/issue-helpers.js?v=20260308"></script>
+    <script src="/static/js/utils/photo-modal.js?v=20260308"></script>
+    <script src="/static/js/utils/toast.js?v=20260308"></script>
+    <script src="/static/js/components/mobile-bottom-nav.js?v=20260308"></script>
+    <script src="/static/js/pages/issue-view.js?v=20260308"></script>
 </body>
 </html>
diff --git a/system3-nonconformance/web/issues-archive.html b/system3-nonconformance/web/issues-archive.html
index 2e079ce..463245a 100644
--- a/system3-nonconformance/web/issues-archive.html
+++ b/system3-nonconformance/web/issues-archive.html
@@ -196,14 +196,16 @@
     </main>
 
     <!-- Scripts -->
-    <script src="/static/js/date-utils.js?v=20260213"></script>
-    <script src="/static/js/core/permissions.js?v=20260213"></script>
-    <script src="/static/js/components/common-header.js?v=20260213"></script>
-    <script src="/static/js/core/page-manager.js?v=20260213"></script>
-    <script src="/static/js/utils/issue-helpers.js?v=20260213"></script>
-    <script src="/static/js/utils/photo-modal.js?v=20260213"></script>
-    <script src="/static/js/utils/toast.js?v=20260213"></script>
-    <script src="/static/js/components/mobile-bottom-nav.js?v=20260213"></script>
-    <script src="/static/js/pages/issues-archive.js?v=20260213"></script>
+    <script src="/static/js/date-utils.js?v=20260308"></script>
+    <script src="/static/js/core/permissions.js?v=20260308"></script>
+    <script src="/static/js/components/common-header.js?v=20260308"></script>
+    <script src="/static/js/core/page-manager.js?v=20260308"></script>
+    <script src="/static/js/api.js?v=20260308"></script>
+    <script src="/static/js/core/auth-manager.js?v=20260308"></script>
+    <script src="/static/js/utils/issue-helpers.js?v=20260308"></script>
+    <script src="/static/js/utils/photo-modal.js?v=20260308"></script>
+    <script src="/static/js/utils/toast.js?v=20260308"></script>
+    <script src="/static/js/components/mobile-bottom-nav.js?v=20260308"></script>
+    <script src="/static/js/pages/issues-archive.js?v=20260308"></script>
 </body>
 </html>
diff --git a/system3-nonconformance/web/issues-dashboard.html b/system3-nonconformance/web/issues-dashboard.html
index 2faa1e1..680dfa5 100644
--- a/system3-nonconformance/web/issues-dashboard.html
+++ b/system3-nonconformance/web/issues-dashboard.html
@@ -550,15 +550,15 @@
     </div>
 
     <!-- 스크립트 -->
-    <script src="/static/js/core/permissions.js?v=20260306"></script>
-    <script src="/static/js/components/common-header.js?v=20260306"></script>
-    <script src="/static/js/core/page-manager.js?v=20260306"></script>
-    <script src="/static/js/core/auth-manager.js?v=20260306"></script>
-    <script src="/static/js/utils/issue-helpers.js?v=20260306"></script>
-    <script src="/static/js/utils/photo-modal.js?v=20260306"></script>
-    <script src="/static/js/utils/toast.js?v=20260306"></script>
-    <script src="/static/js/components/mobile-bottom-nav.js?v=20260306"></script>
-    <script src="/static/js/api.js?v=20260306"></script>
-    <script src="/static/js/pages/issues-dashboard.js?v=20260306"></script>
+    <script src="/static/js/core/permissions.js?v=20260308"></script>
+    <script src="/static/js/components/common-header.js?v=20260308"></script>
+    <script src="/static/js/core/page-manager.js?v=20260308"></script>
+    <script src="/static/js/api.js?v=20260308"></script>
+    <script src="/static/js/core/auth-manager.js?v=20260308"></script>
+    <script src="/static/js/utils/issue-helpers.js?v=20260308"></script>
+    <script src="/static/js/utils/photo-modal.js?v=20260308"></script>
+    <script src="/static/js/utils/toast.js?v=20260308"></script>
+    <script src="/static/js/components/mobile-bottom-nav.js?v=20260308"></script>
+    <script src="/static/js/pages/issues-dashboard.js?v=20260308"></script>
 </body>
 </html>
diff --git a/system3-nonconformance/web/issues-inbox.html b/system3-nonconformance/web/issues-inbox.html
index ee6687b..d54d2d6 100644
--- a/system3-nonconformance/web/issues-inbox.html
+++ b/system3-nonconformance/web/issues-inbox.html
@@ -368,16 +368,17 @@
     </div>
 
     <!-- Scripts -->
-    <script src="/static/js/date-utils.js?v=20260213"></script>
-    <script src="/static/js/core/permissions.js?v=20260213"></script>
-    <script src="/static/js/components/common-header.js?v=20260306"></script>
-    <script src="/static/js/core/page-manager.js?v=20260306"></script>
-    <script src="/static/js/components/mobile-calendar.js?v=20260306"></script>
-    <script src="/static/js/utils/issue-helpers.js?v=20260306"></script>
-    <script src="/static/js/utils/photo-modal.js?v=20260306"></script>
-    <script src="/static/js/utils/toast.js?v=20260306"></script>
-    <script src="/static/js/components/mobile-bottom-nav.js?v=20260306"></script>
-    <script src="/static/js/api.js?v=20260306"></script>
-    <script src="/static/js/pages/issues-inbox.js?v=20260306"></script>
+    <script src="/static/js/date-utils.js?v=20260308"></script>
+    <script src="/static/js/core/permissions.js?v=20260308"></script>
+    <script src="/static/js/components/common-header.js?v=20260308"></script>
+    <script src="/static/js/core/page-manager.js?v=20260308"></script>
+    <script src="/static/js/api.js?v=20260308"></script>
+    <script src="/static/js/core/auth-manager.js?v=20260308"></script>
+    <script src="/static/js/components/mobile-calendar.js?v=20260308"></script>
+    <script src="/static/js/utils/issue-helpers.js?v=20260308"></script>
+    <script src="/static/js/utils/photo-modal.js?v=20260308"></script>
+    <script src="/static/js/utils/toast.js?v=20260308"></script>
+    <script src="/static/js/components/mobile-bottom-nav.js?v=20260308"></script>
+    <script src="/static/js/pages/issues-inbox.js?v=20260308"></script>
 </body>
 </html>
diff --git a/system3-nonconformance/web/issues-management.html b/system3-nonconformance/web/issues-management.html
index f82f884..ad5a99a 100644
--- a/system3-nonconformance/web/issues-management.html
+++ b/system3-nonconformance/web/issues-management.html
@@ -336,15 +336,16 @@
     </div>
 
     <!-- Scripts -->
-    <script src="/static/js/date-utils.js?v=20260213"></script>
-    <script src="/static/js/core/permissions.js?v=20260306"></script>
-    <script src="/static/js/components/common-header.js?v=20260306"></script>
-    <script src="/static/js/core/page-manager.js?v=20260306"></script>
-    <script src="/static/js/utils/issue-helpers.js?v=20260306"></script>
-    <script src="/static/js/utils/photo-modal.js?v=20260306"></script>
-    <script src="/static/js/utils/toast.js?v=20260306"></script>
-    <script src="/static/js/components/mobile-bottom-nav.js?v=20260306"></script>
-    <script src="/static/js/api.js?v=20260306"></script>
-    <script src="/static/js/pages/issues-management.js?v=20260306"></script>
+    <script src="/static/js/date-utils.js?v=20260308"></script>
+    <script src="/static/js/core/permissions.js?v=20260308"></script>
+    <script src="/static/js/components/common-header.js?v=20260308"></script>
+    <script src="/static/js/core/page-manager.js?v=20260308"></script>
+    <script src="/static/js/api.js?v=20260308"></script>
+    <script src="/static/js/core/auth-manager.js?v=20260308"></script>
+    <script src="/static/js/utils/issue-helpers.js?v=20260308"></script>
+    <script src="/static/js/utils/photo-modal.js?v=20260308"></script>
+    <script src="/static/js/utils/toast.js?v=20260308"></script>
+    <script src="/static/js/components/mobile-bottom-nav.js?v=20260308"></script>
+    <script src="/static/js/pages/issues-management.js?v=20260308"></script>
 </body>
 </html>
diff --git a/system3-nonconformance/web/m/dashboard.html b/system3-nonconformance/web/m/dashboard.html
index 3775e42..34d2091 100644
--- a/system3-nonconformance/web/m/dashboard.html
+++ b/system3-nonconformance/web/m/dashboard.html
@@ -5,7 +5,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
     <title>부적합 현황판</title>
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
-    <link rel="stylesheet" href="/static/css/m-common.css?v=20260305">
+    <link rel="stylesheet" href="/static/css/m-common.css?v=20260308">
 </head>
 <body>
     <!-- 로딩 -->
@@ -185,11 +185,11 @@
     </div>
 
     <!-- 스크립트 -->
-    <script src="/static/js/api.js?v=20260305"></script>
-    <script src="/static/js/core/auth-manager.js?v=20260305"></script>
-    <script src="/static/js/core/permissions.js?v=20260305"></script>
-    <script src="/static/js/utils/issue-helpers.js?v=20260305"></script>
-    <script src="/static/js/m/m-common.js?v=20260305"></script>
-    <script src="/static/js/m/m-dashboard.js?v=20260305"></script>
+    <script src="/static/js/api.js?v=20260308"></script>
+    <script src="/static/js/core/auth-manager.js?v=20260308"></script>
+    <script src="/static/js/core/permissions.js?v=20260308"></script>
+    <script src="/static/js/utils/issue-helpers.js?v=20260308"></script>
+    <script src="/static/js/m/m-common.js?v=20260308"></script>
+    <script src="/static/js/m/m-dashboard.js?v=20260308"></script>
 </body>
 </html>
diff --git a/system3-nonconformance/web/m/inbox.html b/system3-nonconformance/web/m/inbox.html
index 5623584..4b90787 100644
--- a/system3-nonconformance/web/m/inbox.html
+++ b/system3-nonconformance/web/m/inbox.html
@@ -5,7 +5,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
     <title>수신함</title>
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
-    <link rel="stylesheet" href="/static/css/m-common.css?v=20260305">
+    <link rel="stylesheet" href="/static/css/m-common.css?v=20260308">
 </head>
 <body>
     <!-- 로딩 -->
@@ -193,11 +193,11 @@
     </div>
 
     <!-- 스크립트 -->
-    <script src="/static/js/api.js?v=20260305"></script>
-    <script src="/static/js/core/auth-manager.js?v=20260305"></script>
-    <script src="/static/js/core/permissions.js?v=20260305"></script>
-    <script src="/static/js/utils/issue-helpers.js?v=20260305"></script>
-    <script src="/static/js/m/m-common.js?v=20260305"></script>
-    <script src="/static/js/m/m-inbox.js?v=20260305"></script>
+    <script src="/static/js/api.js?v=20260308"></script>
+    <script src="/static/js/core/auth-manager.js?v=20260308"></script>
+    <script src="/static/js/core/permissions.js?v=20260308"></script>
+    <script src="/static/js/utils/issue-helpers.js?v=20260308"></script>
+    <script src="/static/js/m/m-common.js?v=20260308"></script>
+    <script src="/static/js/m/m-inbox.js?v=20260308"></script>
 </body>
 </html>
diff --git a/system3-nonconformance/web/m/management.html b/system3-nonconformance/web/m/management.html
index 8281b19..033c6b1 100644
--- a/system3-nonconformance/web/m/management.html
+++ b/system3-nonconformance/web/m/management.html
@@ -5,7 +5,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
     <title>관리함</title>
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
-    <link rel="stylesheet" href="/static/css/m-common.css?v=20260305">
+    <link rel="stylesheet" href="/static/css/m-common.css?v=20260308">
 </head>
 <body>
     <!-- 로딩 -->
@@ -169,11 +169,11 @@
     </div>
 
     <!-- 스크립트 -->
-    <script src="/static/js/api.js?v=20260305"></script>
-    <script src="/static/js/core/auth-manager.js?v=20260305"></script>
-    <script src="/static/js/core/permissions.js?v=20260305"></script>
-    <script src="/static/js/utils/issue-helpers.js?v=20260305"></script>
-    <script src="/static/js/m/m-common.js?v=20260305"></script>
-    <script src="/static/js/m/m-management.js?v=20260305"></script>
+    <script src="/static/js/api.js?v=20260308"></script>
+    <script src="/static/js/core/auth-manager.js?v=20260308"></script>
+    <script src="/static/js/core/permissions.js?v=20260308"></script>
+    <script src="/static/js/utils/issue-helpers.js?v=20260308"></script>
+    <script src="/static/js/m/m-common.js?v=20260308"></script>
+    <script src="/static/js/m/m-management.js?v=20260308"></script>
 </body>
 </html>
diff --git a/system3-nonconformance/web/reports-daily.html b/system3-nonconformance/web/reports-daily.html
index 62810ea..3940419 100644
--- a/system3-nonconformance/web/reports-daily.html
+++ b/system3-nonconformance/web/reports-daily.html
@@ -182,10 +182,10 @@
     </main>
 
     <!-- JavaScript -->
-    <script src="/static/js/core/auth-manager.js"></script>
-    <script src="/static/js/core/permissions.js"></script>
-    <script src="/static/js/components/common-header.js"></script>
-    <script src="/static/js/api.js"></script>
+    <script src="/static/js/core/permissions.js?v=20260308"></script>
+    <script src="/static/js/components/common-header.js?v=20260308"></script>
+    <script src="/static/js/api.js?v=20260308"></script>
+    <script src="/static/js/core/auth-manager.js?v=20260308"></script>
 
     <script>
         let projects = [];
diff --git a/system3-nonconformance/web/reports-monthly.html b/system3-nonconformance/web/reports-monthly.html
index d98e22b..87b8813 100644
--- a/system3-nonconformance/web/reports-monthly.html
+++ b/system3-nonconformance/web/reports-monthly.html
@@ -69,10 +69,10 @@
     </main>
 
     <!-- JavaScript -->
-    <script src="/static/js/core/auth-manager.js"></script>
-    <script src="/static/js/core/permissions.js"></script>
-    <script src="/static/js/components/common-header.js"></script>
-    <script src="/static/js/api.js"></script>
+    <script src="/static/js/core/permissions.js?v=20260308"></script>
+    <script src="/static/js/components/common-header.js?v=20260308"></script>
+    <script src="/static/js/api.js?v=20260308"></script>
+    <script src="/static/js/core/auth-manager.js?v=20260308"></script>
 
     <script>
         // 페이지 초기화
diff --git a/system3-nonconformance/web/reports-weekly.html b/system3-nonconformance/web/reports-weekly.html
index 76bbaed..25acb3f 100644
--- a/system3-nonconformance/web/reports-weekly.html
+++ b/system3-nonconformance/web/reports-weekly.html
@@ -68,10 +68,10 @@
     </main>
 
     <!-- JavaScript -->
-    <script src="/static/js/core/auth-manager.js"></script>
-    <script src="/static/js/core/permissions.js"></script>
-    <script src="/static/js/components/common-header.js"></script>
-    <script src="/static/js/api.js"></script>
+    <script src="/static/js/core/permissions.js?v=20260308"></script>
+    <script src="/static/js/components/common-header.js?v=20260308"></script>
+    <script src="/static/js/api.js?v=20260308"></script>
+    <script src="/static/js/core/auth-manager.js?v=20260308"></script>
 
     <script>
         // 페이지 초기화
diff --git a/system3-nonconformance/web/reports.html b/system3-nonconformance/web/reports.html
index f79e1b1..be15518 100644
--- a/system3-nonconformance/web/reports.html
+++ b/system3-nonconformance/web/reports.html
@@ -170,10 +170,10 @@
 
 
     <!-- JavaScript -->
-    <script src="/static/js/core/auth-manager.js"></script>
-    <script src="/static/js/core/permissions.js"></script>
-    <script src="/static/js/components/common-header.js"></script>
-    <script src="/static/js/api.js"></script>
+    <script src="/static/js/core/permissions.js?v=20260308"></script>
+    <script src="/static/js/components/common-header.js?v=20260308"></script>
+    <script src="/static/js/api.js?v=20260308"></script>
+    <script src="/static/js/core/auth-manager.js?v=20260308"></script>
 
     <script>
         // 페이지 초기화
diff --git a/system3-nonconformance/web/static/js/api.js b/system3-nonconformance/web/static/js/api.js
index 76efc53..96c748d 100644
--- a/system3-nonconformance/web/static/js/api.js
+++ b/system3-nonconformance/web/static/js/api.js
@@ -106,11 +106,10 @@ async function apiRequest(endpoint, options = {}) {
         const response = await fetch(`${API_BASE_URL}${endpoint}`, config);
         
         if (response.status === 401) {
-            // 인증 실패 시 중앙 로그인 페이지로
+            // 인증 실패 — 토큰만 정리하고 에러 throw (리다이렉트는 auth-manager가 처리)
             TokenManager.removeToken();
             TokenManager.removeUser();
-            window.location.href = _getLoginUrl();
-            return;
+            throw new Error('인증이 만료되었습니다.');
         }
         
         if (!response.ok) {
@@ -266,41 +265,21 @@ const ReportsAPI = {
     }
 };
 
-// 권한 체크
+// 권한 체크 — authManager.checkAuth()로 통일 권장
+// 레거시 호환용으로 유지 (localStorage만 체크, API 호출 없음)
 function checkAuth() {
     const user = TokenManager.getUser();
-    if (!user) {
-        window.location.href = _getLoginUrl();
-        return null;
-    }
+    if (!user) return null;
     return user;
 }
 
-function checkAdminAuth() {
-    const user = checkAuth();
-    if (user && user.role !== 'admin') {
-        alert('관리자 권한이 필요합니다.');
-        window.location.href = _getLoginUrl();
-        return null;
-    }
-    return user;
-}
-
-// 페이지 접근 권한 체크 함수
 function checkPageAccess(pageName) {
     const user = checkAuth();
     if (!user) return null;
-
-    // admin은 모든 페이지 접근 가능
     if (user.role === 'admin') return user;
-
-    // 페이지별 권한 체크는 pagePermissionManager에서 처리
     if (window.pagePermissionManager && !window.pagePermissionManager.canAccessPage(pageName)) {
-        alert('이 페이지에 접근할 권한이 없습니다.');
-        window.location.href = _getLoginUrl();
         return null;
     }
-
     return user;
 }
 
diff --git a/system3-nonconformance/web/static/js/core/auth-manager.js b/system3-nonconformance/web/static/js/core/auth-manager.js
index 48b5afb..7f806bf 100644
--- a/system3-nonconformance/web/static/js/core/auth-manager.js
+++ b/system3-nonconformance/web/static/js/core/auth-manager.js
@@ -152,7 +152,7 @@ class AuthManager {
             console.error('인증 실패:', error);
             this.clearAuth();
             this.notifyListeners('auth-failed', error);
-            throw error;
+            return null;
         }
     }
     
@@ -235,8 +235,11 @@ class AuthManager {
     setupTokenExpiryCheck() {
         setInterval(() => {
             if (this.isAuthenticated) {
-                this.refreshAuth().catch(() => {
-                    this.logout();
+                this.refreshAuth().then(user => {
+                    if (!user) {
+                        // 인증 실패 — clearAuth()는 refreshAuth 내부에서 이미 처리됨
+                        this.notifyListeners('token-expired');
+                    }
                 });
             }
         }, 30 * 60 * 1000);