feat: 다수 기능 개선 - 순찰, 출근, 작업분석, 모바일 UI 등

- 순찰/점검 기능 개선 (zone-detail 페이지 추가)
- 출근/근태 시스템 개선 (연차 조회, 근무현황)
- 작업분석 대분류 그룹화 및 마이그레이션 스크립트
- 모바일 네비게이션 UI 추가
- NAS 배포 도구 및 문서 추가

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

api.hyungi.net/routes/authRoutes.js

@@ -147,7 +147,7 @@ router.post('/refresh-token', async (req, res) => {
     
     // 사용자 정보 조회
     const [users] = await connection.execute(
-      'SELECT * FROM Users WHERE user_id = ? AND is_active = TRUE',
+      'SELECT * FROM users WHERE user_id = ? AND is_active = TRUE',
       [decoded.user_id]
     );
 
@@ -229,7 +229,7 @@ router.post('/change-password', verifyToken, async (req, res) => {
 
     // 현재 사용자의 비밀번호 조회
     const [users] = await connection.execute(
-      'SELECT password FROM Users WHERE user_id = ?',
+      'SELECT password FROM users WHERE user_id = ?',
       [userId]
     );
 
@@ -339,7 +339,7 @@ router.post('/admin/change-password', verifyToken, async (req, res) => {
 
     // 대상 사용자 확인
     const [users] = await connection.execute(
-      'SELECT username, name FROM Users WHERE user_id = ?',
+      'SELECT username, name FROM users WHERE user_id = ?',
       [userId]
     );
 
@@ -456,7 +456,7 @@ router.get('/me', verifyToken, async (req, res) => {
     
     connection = await mysql.createConnection(dbConfig);
     const [rows] = await connection.execute(
-      'SELECT user_id, username, name, email, access_level, worker_id, last_login_at, created_at FROM Users WHERE user_id = ?',
+      'SELECT user_id, username, name, email, access_level, worker_id, last_login_at, created_at FROM users WHERE user_id = ?',
       [userId]
     );
     
@@ -522,7 +522,7 @@ router.post('/register', verifyToken, async (req, res) => {
     
     // 사용자명 중복 체크
     const [existing] = await connection.execute(
-      'SELECT user_id FROM Users WHERE username = ?',
+      'SELECT user_id FROM users WHERE username = ?',
       [username]
     );
     
@@ -536,7 +536,7 @@ router.post('/register', verifyToken, async (req, res) => {
     // 이메일 중복 체크 (이메일이 제공된 경우)
     if (email) {
       const [existingEmail] = await connection.execute(
-        'SELECT user_id FROM Users WHERE email = ?',
+        'SELECT user_id FROM users WHERE email = ?',
         [email]
       );
       
@@ -700,7 +700,7 @@ router.put('/users/:id', verifyToken, async (req, res) => {
     
     // 사용자 존재 확인
     const [existing] = await connection.execute(
-      'SELECT user_id, username FROM Users WHERE user_id = ?',
+      'SELECT user_id, username FROM users WHERE user_id = ?',
       [userId]
     );
     
@@ -724,7 +724,7 @@ router.put('/users/:id', verifyToken, async (req, res) => {
       // 이메일 중복 체크
       if (email) {
         const [emailCheck] = await connection.execute(
-          'SELECT user_id FROM Users WHERE email = ? AND user_id != ?',
+          'SELECT user_id FROM users WHERE email = ? AND user_id != ?',
           [email, userId]
         );
         
@@ -794,7 +794,7 @@ router.put('/users/:id', verifyToken, async (req, res) => {
 
     // 업데이트된 사용자 정보 조회
     const [updated] = await connection.execute(
-      'SELECT user_id, username, name, email, access_level, worker_id, is_active FROM Users WHERE user_id = ?',
+      'SELECT user_id, username, name, email, access_level, worker_id, is_active FROM users WHERE user_id = ?',
       [userId]
     );