diff --git a/api.hyungi.net/models/projectModel.js b/api.hyungi.net/models/projectModel.js
index 1b1b976..6c3ee64 100644
--- a/api.hyungi.net/models/projectModel.js
+++ b/api.hyungi.net/models/projectModel.js
@@ -10,7 +10,7 @@ const create = async (project, callback) => {
     } = project;
   
     const [result] = await db.query(
-      `INSERT INTO Projects
+      `INSERT INTO projects
        (job_no, project_name, contract_date, due_date, delivery_method, site, pm)
        VALUES (?, ?, ?, ?, ?, ?, ?)`,
       [job_no, project_name, contract_date, due_date, delivery_method, site, pm]
@@ -26,7 +26,7 @@ const getAll = async (callback) => {
   try {
     const db = await getDb();
     const [rows] = await db.query(
-      `SELECT * FROM Projects ORDER BY project_id DESC`
+      `SELECT * FROM projects ORDER BY project_id DESC`
     );
     callback(null, rows);
   } catch (err) {
@@ -38,7 +38,7 @@ const getById = async (project_id, callback) => {
   try {
     const db = await getDb();
     const [rows] = await db.query(
-      `SELECT * FROM Projects WHERE project_id = ?`,
+      `SELECT * FROM projects WHERE project_id = ?`,
       [project_id]
     );
     callback(null, rows[0]);
@@ -57,7 +57,7 @@ const update = async (project, callback) => {
     } = project;
 
     const [result] = await db.query(
-      `UPDATE Projects
+      `UPDATE projects
        SET job_no         = ?,
            project_name   = ?,
            contract_date  = ?,
@@ -79,7 +79,7 @@ const remove = async (project_id, callback) => {
   try {
     const db = await getDb();
     const [result] = await db.query(
-      `DELETE FROM Projects WHERE project_id = ?`,
+      `DELETE FROM projects WHERE project_id = ?`,
       [project_id]
     );
     callback(null, result.affectedRows);
diff --git a/api.hyungi.net/models/taskModel.js b/api.hyungi.net/models/taskModel.js
index 6ee247d..24ca845 100644
--- a/api.hyungi.net/models/taskModel.js
+++ b/api.hyungi.net/models/taskModel.js
@@ -7,7 +7,7 @@ const create = async (task, callback) => {
     const { category, subcategory, task_name, description } = task;
 
     const [result] = await db.query(
-      `INSERT INTO Tasks (category, subcategory, task_name, description)
+      `INSERT INTO tasks (category, subcategory, task_name, description)
        VALUES (?, ?, ?, ?)`,
       [category, subcategory, task_name, description]
     );
@@ -23,7 +23,7 @@ const getAll = async (callback) => {
   try {
     const db = await getDb();
     const [rows] = await db.query(
-      `SELECT * FROM Tasks ORDER BY task_id DESC`
+      `SELECT * FROM tasks ORDER BY task_id DESC`
     );
     callback(null, rows);
   } catch (err) {
@@ -36,7 +36,7 @@ const getById = async (task_id, callback) => {
   try {
     const db = await getDb();
     const [rows] = await db.query(
-      `SELECT * FROM Tasks WHERE task_id = ?`,
+      `SELECT * FROM tasks WHERE task_id = ?`,
       [task_id]
     );
     callback(null, rows[0]);
@@ -52,7 +52,7 @@ const update = async (task, callback) => {
     const { task_id, category, subcategory, task_name, description } = task;
 
     const [result] = await db.query(
-      `UPDATE Tasks
+      `UPDATE tasks
        SET category     = ?,
            subcategory  = ?,
            task_name    = ?,
@@ -72,7 +72,7 @@ const remove = async (task_id, callback) => {
   try {
     const db = await getDb();
     const [result] = await db.query(
-      `DELETE FROM Tasks WHERE task_id = ?`,
+      `DELETE FROM tasks WHERE task_id = ?`,
       [task_id]
     );
     callback(null, result.affectedRows);
diff --git a/docker-compose.yml b/docker-compose.yml
index 87a974d..dd0676a 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -45,6 +45,8 @@ services:
       - DB_NAME=hyungi
       - DB_ROOT_PASSWORD=tkfb2024!
       - JWT_SECRET=tkfb_jwt_secret_2024_hyungi_secure_key
+      - JWT_EXPIRES_IN=7d
+      - JWT_REFRESH_EXPIRES_IN=30d
     volumes:
       - ./api.hyungi.net/public/img:/usr/src/app/public/img:ro
       - ./api.hyungi.net/uploads:/usr/src/app/uploads
diff --git a/web-ui/js/api-config.js b/web-ui/js/api-config.js
index 3ec1610..a6881cd 100644
--- a/web-ui/js/api-config.js
+++ b/web-ui/js/api-config.js
@@ -34,15 +34,45 @@ window.API_BASE_URL = API_URL;
 
 function ensureAuthenticated() {
   const token = localStorage.getItem('token');
-  if (!token || token === 'undefined') {
-    alert('로그인이 필요합니다');
-    localStorage.removeItem('token');
-    window.location.href = '/';
-    return null;
+  if (!token || token === 'undefined' || token === 'null') {
+    console.log('🚨 인증되지 않은 사용자. 로그인 페이지로 이동합니다.');
+    clearAuthData(); // 만약을 위해 한번 더 정리
+    window.location.href = '/index.html';
+    return false; // 이후 코드 실행 방지
   }
+  
+  // 토큰 만료 확인
+  if (isTokenExpired(token)) {
+    console.log('🚨 토큰이 만료되었습니다. 로그인 페이지로 이동합니다.');
+    clearAuthData();
+    alert('세션이 만료되었습니다. 다시 로그인해주세요.');
+    window.location.href = '/index.html';
+    return false;
+  }
+  
   return token;
 }
 
+// 토큰 만료 확인 함수
+function isTokenExpired(token) {
+  try {
+    const payload = JSON.parse(atob(token.split('.')[1]));
+    const currentTime = Math.floor(Date.now() / 1000);
+    return payload.exp < currentTime;
+  } catch (error) {
+    console.error('토큰 파싱 오류:', error);
+    return true; // 파싱 실패 시 만료된 것으로 간주
+  }
+}
+
+// 인증 데이터 정리 함수
+function clearAuthData() {
+  localStorage.removeItem('token');
+  localStorage.removeItem('user');
+  localStorage.removeItem('userInfo');
+  localStorage.removeItem('currentUser');
+}
+
 function getAuthHeaders() {
   const token = localStorage.getItem('token');
   return {
@@ -72,11 +102,11 @@ async function apiCall(url, options = {}) {
     
     // 인증 만료 처리
     if (response.status === 401) {
-      console.error('❌ 인증 만료');
-      localStorage.removeItem('token');
-      alert('인증이 만료되었습니다. 다시 로그인해주세요.');
-      window.location.href = '/';
-      return;
+      console.error('🚨 인증 실패: 토큰이 만료되었거나 유효하지 않습니다.');
+      clearAuthData();
+      alert('세션이 만료되었습니다. 다시 로그인해주세요.');
+      window.location.href = '/index.html';
+      throw new Error('인증에 실패했습니다.');
     }
 
     // 응답 실패 처리
@@ -143,10 +173,23 @@ window.ensureAuthenticated = ensureAuthenticated;
 window.getAuthHeaders = getAuthHeaders;
 window.apiCall = apiCall;
 window.testApiConnection = testApiConnection;
+window.isTokenExpired = isTokenExpired;
+window.clearAuthData = clearAuthData;
 
 // 개발 모드에서 자동 테스트
 if (window.location.hostname === 'localhost' || window.location.hostname.startsWith('192.168.')) {
   setTimeout(() => {
     testApiConnection();
   }, 1000);
-}
\ No newline at end of file
+}
+
+// 주기적으로 토큰 만료 확인 (5분마다)
+setInterval(() => {
+  const token = localStorage.getItem('token');
+  if (token && isTokenExpired(token)) {
+    console.log('🚨 주기적 확인: 토큰이 만료되었습니다.');
+    clearAuthData();
+    alert('세션이 만료되었습니다. 다시 로그인해주세요.');
+    window.location.href = '/index.html';
+  }
+}, 5 * 60 * 1000); // 5분마다 확인
\ No newline at end of file
diff --git a/web-ui/js/daily-work-report.js b/web-ui/js/daily-work-report.js
index d8785ab..afcf762 100644
--- a/web-ui/js/daily-work-report.js
+++ b/web-ui/js/daily-work-report.js
@@ -1,9 +1,9 @@
-// daily-work-report.js - 통합 API 설정 적용 버전
+// daily-work-report.js - 브라우저 호환 버전
 
 // =================================================================
-// 🌐 통합 API 설정 import
+// 🌐 API 설정 (window 객체에서 가져오기)
 // =================================================================
-import { API, getAuthHeaders, apiCall } from '/js/api-config.js';
+// API 설정은 api-config.js에서 window 객체에 설정됨
 
 // 전역 변수
 let workTypes = [];
@@ -117,7 +117,7 @@ async function loadData() {
 async function loadWorkers() {
   try {
     console.log('Workers API 호출 중... (통합 API 사용)');
-    const data = await apiCall(`${API}/workers`);
+    const data = await window.apiCall(`${window.API}/workers`);
     workers = Array.isArray(data) ? data : (data.data || data.workers || []);
     console.log('✅ Workers 로드 성공:', workers.length);
   } catch (error) {
@@ -129,7 +129,7 @@ async function loadWorkers() {
 async function loadProjects() {
   try {
     console.log('Projects API 호출 중... (통합 API 사용)');
-    const data = await apiCall(`${API}/projects`);
+    const data = await window.apiCall(`${window.API}/projects`);
     projects = Array.isArray(data) ? data : (data.data || data.projects || []);
     console.log('✅ Projects 로드 성공:', projects.length);
   } catch (error) {
@@ -140,7 +140,7 @@ async function loadProjects() {
 
 async function loadWorkTypes() {
   try {
-    const data = await apiCall(`${API}/daily-work-reports/work-types`);
+    const data = await window.apiCall(`${window.API}/daily-work-reports/work-types`);
     if (Array.isArray(data) && data.length > 0) {
       workTypes = data;
       console.log('✅ 작업 유형 API 사용 (통합 설정)');
@@ -159,7 +159,7 @@ async function loadWorkTypes() {
 
 async function loadWorkStatusTypes() {
   try {
-    const data = await apiCall(`${API}/daily-work-reports/work-status-types`);
+    const data = await window.apiCall(`${window.API}/daily-work-reports/work-status-types`);
     if (Array.isArray(data) && data.length > 0) {
       workStatusTypes = data;
       console.log('✅ 업무 상태 유형 API 사용 (통합 설정)');
@@ -177,7 +177,7 @@ async function loadWorkStatusTypes() {
 
 async function loadErrorTypes() {
   try {
-    const data = await apiCall(`${API}/daily-work-reports/error-types`);
+    const data = await window.apiCall(`${window.API}/daily-work-reports/error-types`);
     if (Array.isArray(data) && data.length > 0) {
       errorTypes = data;
       console.log('✅ 에러 유형 API 사용 (통합 설정)');
@@ -424,7 +424,7 @@ async function saveWorkReport() {
       console.log('전송 데이터 (통합 API 사용):', requestData);
 
       try {
-        const result = await apiCall(`${API}/daily-work-reports`, {
+        const result = await window.apiCall(`${window.API}/daily-work-reports`, {
           method: 'POST',
           body: JSON.stringify(requestData)
         });
@@ -510,7 +510,7 @@ async function loadTodayWorkers() {
     
     console.log(`🔒 본인 입력분만 조회 (통합 API): ${API}/daily-work-reports?${queryParams}`);
     
-    const rawData = await apiCall(`${API}/daily-work-reports?${queryParams}`);
+    const rawData = await window.apiCall(`${window.API}/daily-work-reports?${queryParams}`);
     console.log('📊 당일 작업 데이터 (통합 API):', rawData);
     
     let data = [];
@@ -645,7 +645,7 @@ async function editWorkItem(workId) {
     // 1. 기존 데이터 조회 (통합 API 사용)
     showMessage('작업 정보를 불러오는 중... (통합 API)', 'loading');
     
-    const workData = await apiCall(`${API}/daily-work-reports/${workId}`);
+    const workData = await window.apiCall(`${window.API}/daily-work-reports/${workId}`);
     console.log('수정할 작업 데이터 (통합 API):', workData);
     
     // 2. 수정 모달 표시
@@ -784,7 +784,7 @@ async function saveEditedWork() {
     
     showMessage('작업을 수정하는 중... (통합 API)', 'loading');
     
-    const result = await apiCall(`${API}/daily-work-reports/${editingWorkId}`, {
+    const result = await window.apiCall(`${window.API}/daily-work-reports/${editingWorkId}`, {
       method: 'PUT',
       body: JSON.stringify(updateData)
     });
@@ -813,7 +813,7 @@ async function deleteWorkItem(workId) {
     showMessage('작업을 삭제하는 중... (통합 API)', 'loading');
     
     // 개별 항목 삭제 API 호출 (본인 작성분만 삭제 가능) - 통합 API 사용
-    const result = await apiCall(`${API}/daily-work-reports/my-entry/${workId}`, {
+    const result = await window.apiCall(`${window.API}/daily-work-reports/my-entry/${workId}`, {
       method: 'DELETE'
     });
     
diff --git a/web-ui/pages/common/daily-work-report.html b/web-ui/pages/common/daily-work-report.html
index a8e0156..a38a914 100644
--- a/web-ui/pages/common/daily-work-report.html
+++ b/web-ui/pages/common/daily-work-report.html
@@ -1055,8 +1055,8 @@
   </div>
 
   <!-- 스크립트 -->
-  <script type="module" src="/js/load-navbar.js"></script>
-  <!-- ⚠️ 중요: 모듈 타입으로 수정 -->
-  <script type="module" src="/js/daily-work-report.js"></script>
+  <script src="/js/api-config.js"></script>
+  <script src="/js/load-navbar.js"></script>
+  <script src="/js/daily-work-report.js"></script>
 </body>
 </html>
\ No newline at end of file