diff --git a/docker-compose.yml b/docker-compose.yml
index 12adeb7..14e6945 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -103,6 +103,10 @@ services:
       - REDIS_PORT=6379
       - WEATHER_API_URL=${WEATHER_API_URL:-}
       - WEATHER_API_KEY=${WEATHER_API_KEY:-}
+      - VAPID_PUBLIC_KEY=${VAPID_PUBLIC_KEY}
+      - VAPID_PRIVATE_KEY=${VAPID_PRIVATE_KEY}
+      - VAPID_SUBJECT=${VAPID_SUBJECT:-mailto:admin@technicalkorea.net}
+      - INTERNAL_SERVICE_KEY=${INTERNAL_SERVICE_KEY}
     volumes:
       - system1_uploads:/usr/src/app/uploads
       - system1_logs:/usr/src/app/logs
@@ -172,6 +176,7 @@ services:
       - M_PROJECT_USERNAME=${M_PROJECT_USERNAME:-api_service}
       - M_PROJECT_PASSWORD=${M_PROJECT_PASSWORD:-}
       - M_PROJECT_DEFAULT_PROJECT_ID=${M_PROJECT_DEFAULT_PROJECT_ID:-1}
+      - INTERNAL_SERVICE_KEY=${INTERNAL_SERVICE_KEY}
     volumes:
       - system2_uploads:/usr/src/app/uploads
       - system2_logs:/usr/src/app/logs
@@ -306,6 +311,7 @@ services:
       - DB_PASSWORD=${MYSQL_PASSWORD}
       - DB_NAME=${MYSQL_DATABASE:-hyungi}
       - SSO_JWT_SECRET=${SSO_JWT_SECRET}
+      - INTERNAL_SERVICE_KEY=${INTERNAL_SERVICE_KEY}
     depends_on:
       mariadb:
         condition: service_healthy
@@ -346,6 +352,7 @@ services:
       - DB_PASSWORD=${MYSQL_PASSWORD}
       - DB_NAME=${MYSQL_DATABASE:-hyungi}
       - SSO_JWT_SECRET=${SSO_JWT_SECRET}
+      - INTERNAL_SERVICE_KEY=${INTERNAL_SERVICE_KEY}
     depends_on:
       mariadb:
         condition: service_healthy
diff --git a/gateway/html/shared/notification-bell.js b/gateway/html/shared/notification-bell.js
new file mode 100644
index 0000000..b8f0766
--- /dev/null
+++ b/gateway/html/shared/notification-bell.js
@@ -0,0 +1,410 @@
+/**
+ * 공유 알림 벨 — 모든 서비스 헤더에 자동 삽입
+ *
+ * 사용법: initAuth() 성공 후 동적 <script> 로드
+ *   const s = document.createElement('script');
+ *   s.src = '/shared/notification-bell.js?v=1';
+ *   document.head.appendChild(s);
+ *
+ * 요구사항: SSOAuth (nav-header.js) 또는 getToken() 함수 존재
+ */
+(function () {
+  'use strict';
+
+  /* ========== Config ========== */
+  var POLL_INTERVAL = 60000; // 60초
+  var DROPDOWN_LIMIT = 5;
+  var API_ORIGIN = (function () {
+    var h = window.location.hostname;
+    if (h.includes('technicalkorea.net')) return 'https://tkfb.technicalkorea.net';
+    return window.location.protocol + '//' + h + ':30005';
+  })();
+  var API_BASE = API_ORIGIN + '/api/notifications';
+  var PUSH_API_BASE = API_ORIGIN + '/api/push';
+
+  /* ========== Token helper ========== */
+  function _getToken() {
+    if (window.SSOAuth && window.SSOAuth.getToken) return window.SSOAuth.getToken();
+    if (typeof getToken === 'function') return getToken();
+    // cookie fallback
+    var m = document.cookie.match(/(?:^|; )sso_token=([^;]*)/);
+    return m ? decodeURIComponent(m[1]) : null;
+  }
+
+  function _authFetch(url, opts) {
+    opts = opts || {};
+    opts.headers = opts.headers || {};
+    var token = _getToken();
+    if (token) opts.headers['Authorization'] = 'Bearer ' + token;
+    return fetch(url, opts);
+  }
+
+  /* ========== State ========== */
+  var pollTimer = null;
+  var unreadCount = 0;
+  var dropdownOpen = false;
+  var pushSubscribed = false;
+
+  /* ========== UI: Bell injection ========== */
+  function injectBell() {
+    var header = document.querySelector('header');
+    if (!header) return;
+
+    // 벨 컨테이너
+    var wrapper = document.createElement('div');
+    wrapper.id = 'notif-bell-wrapper';
+    wrapper.style.cssText = 'position:relative;display:inline-flex;align-items:center;cursor:pointer;margin-left:12px;';
+
+    wrapper.innerHTML =
+      '<div id="notif-bell-btn" style="position:relative;padding:6px;" title="알림">' +
+        '<svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" style="color:#4B5563;">' +
+          '<path d="M18 8A6 6 0 0 0 6 8c0 7-3 9-3 9h18s-3-2-3-9"/>' +
+          '<path d="M13.73 21a2 2 0 0 1-3.46 0"/>' +
+        '</svg>' +
+        '<span id="notif-badge" style="display:none;position:absolute;top:0;right:0;background:#EF4444;color:#fff;font-size:11px;font-weight:600;min-width:18px;height:18px;line-height:18px;text-align:center;border-radius:9px;padding:0 4px;">0</span>' +
+      '</div>' +
+      '<div id="notif-dropdown" style="display:none;position:absolute;top:100%;right:0;width:340px;max-height:420px;background:#fff;border:1px solid #E5E7EB;border-radius:8px;box-shadow:0 10px 25px rgba(0,0,0,.15);z-index:9999;overflow:hidden;margin-top:4px;">' +
+        '<div style="padding:12px 16px;border-bottom:1px solid #F3F4F6;display:flex;justify-content:space-between;align-items:center;">' +
+          '<span style="font-weight:600;font-size:14px;color:#111827;">알림</span>' +
+          '<div style="display:flex;gap:8px;align-items:center;">' +
+            '<button id="notif-push-toggle" style="font-size:12px;color:#6B7280;background:none;border:1px solid #D1D5DB;border-radius:4px;padding:2px 8px;cursor:pointer;" title="Push 알림 설정">🔔 Push</button>' +
+            '<button id="notif-read-all" style="font-size:12px;color:#3B82F6;background:none;border:none;cursor:pointer;">모두 읽음</button>' +
+          '</div>' +
+        '</div>' +
+        '<div id="notif-list" style="max-height:300px;overflow-y:auto;"></div>' +
+        '<a id="notif-view-all" href="' + _getAllNotificationsUrl() + '" style="display:block;text-align:center;padding:10px;font-size:13px;color:#3B82F6;text-decoration:none;border-top:1px solid #F3F4F6;">전체보기</a>' +
+      '</div>';
+
+    // 삽입 위치: header 내부, 우측 영역 찾기
+    var rightArea = header.querySelector('.flex.items-center.gap-3') ||
+                    header.querySelector('.flex.items-center.gap-4') ||
+                    header.querySelector('.flex.items-center.space-x-4') ||
+                    header.querySelector('[class*="items-center"]');
+
+    if (rightArea) {
+      // 로그아웃 버튼 앞에 삽입
+      var logoutBtn = rightArea.querySelector('button[onclick*="Logout"], button[onclick*="logout"]');
+      if (logoutBtn) {
+        rightArea.insertBefore(wrapper, logoutBtn);
+      } else {
+        rightArea.insertBefore(wrapper, rightArea.firstChild);
+      }
+    } else {
+      header.appendChild(wrapper);
+    }
+
+    // Event listeners
+    document.getElementById('notif-bell-btn').addEventListener('click', toggleDropdown);
+    document.getElementById('notif-read-all').addEventListener('click', markAllRead);
+    document.getElementById('notif-push-toggle').addEventListener('click', handlePushToggle);
+
+    // 외부 클릭 시 닫기
+    document.addEventListener('click', function (e) {
+      if (dropdownOpen && !wrapper.contains(e.target)) {
+        closeDropdown();
+      }
+    });
+  }
+
+  function _getAllNotificationsUrl() {
+    var h = window.location.hostname;
+    if (h.includes('technicalkorea.net')) return 'https://tkfb.technicalkorea.net/pages/admin/notifications.html';
+    return window.location.protocol + '//' + h + ':30080/pages/admin/notifications.html';
+  }
+
+  /* ========== UI: Badge ========== */
+  function updateBadge(count) {
+    unreadCount = count;
+    var badge = document.getElementById('notif-badge');
+    if (!badge) return;
+    if (count > 0) {
+      badge.textContent = count > 99 ? '99+' : count;
+      badge.style.display = 'block';
+    } else {
+      badge.style.display = 'none';
+    }
+  }
+
+  /* ========== UI: Dropdown ========== */
+  function toggleDropdown(e) {
+    e && e.stopPropagation();
+    if (dropdownOpen) { closeDropdown(); return; }
+    openDropdown();
+  }
+
+  function openDropdown() {
+    dropdownOpen = true;
+    document.getElementById('notif-dropdown').style.display = 'block';
+    loadNotifications();
+    updatePushToggleUI();
+  }
+
+  function closeDropdown() {
+    dropdownOpen = false;
+    document.getElementById('notif-dropdown').style.display = 'none';
+  }
+
+  function loadNotifications() {
+    var list = document.getElementById('notif-list');
+    if (!list) return;
+    list.innerHTML = '<div style="padding:20px;text-align:center;color:#9CA3AF;font-size:13px;">로딩 중...</div>';
+
+    _authFetch(API_BASE + '/unread')
+      .then(function (r) { return r.json(); })
+      .then(function (data) {
+        if (!data.success || !data.data || data.data.length === 0) {
+          list.innerHTML = '<div style="padding:20px;text-align:center;color:#9CA3AF;font-size:13px;">새 알림이 없습니다</div>';
+          return;
+        }
+        var items = data.data.slice(0, DROPDOWN_LIMIT);
+        list.innerHTML = items.map(function (n) {
+          var timeAgo = _timeAgo(n.created_at);
+          var typeLabel = _typeLabel(n.type);
+          return '<div class="notif-item" data-id="' + n.notification_id + '" data-url="' + _escAttr(n.link_url || '') + '" style="padding:10px 16px;border-bottom:1px solid #F9FAFB;cursor:pointer;transition:background .15s;" onmouseover="this.style.background=\'#F9FAFB\'" onmouseout="this.style.background=\'transparent\'">' +
+            '<div style="display:flex;justify-content:space-between;align-items:flex-start;">' +
+              '<div style="flex:1;min-width:0;">' +
+                '<div style="display:flex;align-items:center;gap:6px;margin-bottom:2px;">' +
+                  '<span style="font-size:10px;background:#EFF6FF;color:#3B82F6;padding:1px 6px;border-radius:3px;font-weight:500;">' + _escHtml(typeLabel) + '</span>' +
+                  '<span style="font-size:11px;color:#9CA3AF;">' + _escHtml(timeAgo) + '</span>' +
+                '</div>' +
+                '<div style="font-size:13px;font-weight:500;color:#111827;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;">' + _escHtml(n.title) + '</div>' +
+                (n.message ? '<div style="font-size:12px;color:#6B7280;margin-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;">' + _escHtml(n.message) + '</div>' : '') +
+              '</div>' +
+              '<div style="width:8px;height:8px;border-radius:50%;background:#3B82F6;flex-shrink:0;margin-top:6px;margin-left:8px;"></div>' +
+            '</div>' +
+          '</div>';
+        }).join('');
+
+        // 클릭 이벤트
+        list.querySelectorAll('.notif-item').forEach(function (el) {
+          el.addEventListener('click', function () {
+            var id = el.getAttribute('data-id');
+            var url = el.getAttribute('data-url');
+            _authFetch(API_BASE + '/' + id + '/read', { method: 'POST' })
+              .then(function () { fetchUnreadCount(); })
+              .catch(function () {});
+            if (url) {
+              // 같은 서비스 내 URL이면 직접 이동, 아니면 새 탭
+              if (url.startsWith('/')) window.location.href = url;
+              else window.open(url, '_blank');
+            }
+            closeDropdown();
+          });
+        });
+      })
+      .catch(function () {
+        list.innerHTML = '<div style="padding:20px;text-align:center;color:#EF4444;font-size:13px;">알림을 불러올 수 없습니다</div>';
+      });
+  }
+
+  function markAllRead(e) {
+    e && e.stopPropagation();
+    _authFetch(API_BASE + '/read-all', { method: 'POST' })
+      .then(function () {
+        updateBadge(0);
+        var list = document.getElementById('notif-list');
+        if (list) list.innerHTML = '<div style="padding:20px;text-align:center;color:#9CA3AF;font-size:13px;">새 알림이 없습니다</div>';
+      })
+      .catch(function () {});
+  }
+
+  /* ========== Polling ========== */
+  function fetchUnreadCount() {
+    _authFetch(API_BASE + '/unread/count')
+      .then(function (r) { return r.json(); })
+      .then(function (data) {
+        if (data.success) updateBadge(data.data.count);
+      })
+      .catch(function () {});
+  }
+
+  function startPolling() {
+    fetchUnreadCount();
+    pollTimer = setInterval(fetchUnreadCount, POLL_INTERVAL);
+  }
+
+  function stopPolling() {
+    if (pollTimer) { clearInterval(pollTimer); pollTimer = null; }
+  }
+
+  /* ========== Web Push ========== */
+  function handlePushToggle(e) {
+    e && e.stopPropagation();
+    if (pushSubscribed) {
+      unsubscribePush();
+    } else {
+      subscribePush();
+    }
+  }
+
+  function subscribePush() {
+    if (!('serviceWorker' in navigator) || !('PushManager' in window)) {
+      alert('이 브라우저는 Push 알림을 지원하지 않습니다.');
+      return;
+    }
+
+    // VAPID 공개키 가져오기
+    fetch(PUSH_API_BASE + '/vapid-public-key')
+      .then(function (r) { return r.json(); })
+      .then(function (data) {
+        if (!data.success || !data.data.vapidPublicKey) {
+          alert('Push 설정을 불러올 수 없습니다.');
+          return;
+        }
+        var vapidKey = data.data.vapidPublicKey;
+
+        return navigator.serviceWorker.getRegistration('/').then(function (reg) {
+          if (!reg) {
+            // push-sw.js 등록
+            return navigator.serviceWorker.register('/push-sw.js', { scope: '/' });
+          }
+          return reg;
+        }).then(function (reg) {
+          return reg.pushManager.subscribe({
+            userVisibleOnly: true,
+            applicationServerKey: _urlBase64ToUint8Array(vapidKey)
+          });
+        }).then(function (subscription) {
+          // 서버에 구독 저장
+          return _authFetch(PUSH_API_BASE + '/subscribe', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ subscription: subscription.toJSON() })
+          });
+        }).then(function (r) { return r.json(); })
+        .then(function (result) {
+          if (result.success) {
+            pushSubscribed = true;
+            stopPolling(); // Push 구독 성공 → 폴링 중단
+            updatePushToggleUI();
+          }
+        });
+      })
+      .catch(function (err) {
+        console.error('[notification-bell] Push subscribe error:', err);
+        if (err.name === 'NotAllowedError') {
+          alert('알림 권한이 거부되었습니다. 브라우저 설정에서 허용해주세요.');
+        }
+      });
+  }
+
+  function unsubscribePush() {
+    navigator.serviceWorker.getRegistration('/').then(function (reg) {
+      if (!reg) return;
+      return reg.pushManager.getSubscription();
+    }).then(function (sub) {
+      if (!sub) return;
+      var endpoint = sub.endpoint;
+      return sub.unsubscribe().then(function () {
+        return _authFetch(PUSH_API_BASE + '/unsubscribe', {
+          method: 'DELETE',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify({ endpoint: endpoint })
+        });
+      });
+    }).then(function () {
+      pushSubscribed = false;
+      startPolling(); // Push 해제 → 폴링 복구
+      updatePushToggleUI();
+    }).catch(function (err) {
+      console.error('[notification-bell] Push unsubscribe error:', err);
+    });
+  }
+
+  function checkPushStatus() {
+    if (!('serviceWorker' in navigator) || !('PushManager' in window)) return;
+    navigator.serviceWorker.getRegistration('/').then(function (reg) {
+      if (!reg) return;
+      return reg.pushManager.getSubscription();
+    }).then(function (sub) {
+      if (sub) {
+        pushSubscribed = true;
+        stopPolling(); // 이미 구독 상태면 폴링 불필요
+        // Push로 뱃지만 갱신 (초기 1회)
+        fetchUnreadCount();
+      }
+    }).catch(function () {});
+  }
+
+  function updatePushToggleUI() {
+    var btn = document.getElementById('notif-push-toggle');
+    if (!btn) return;
+    if (pushSubscribed) {
+      btn.textContent = '🔕 Push 해제';
+      btn.style.borderColor = '#EF4444';
+      btn.style.color = '#EF4444';
+    } else {
+      btn.textContent = '🔔 Push';
+      btn.style.borderColor = '#D1D5DB';
+      btn.style.color = '#6B7280';
+    }
+  }
+
+  /* ========== Push SW message handler ========== */
+  function listenForPushMessages() {
+    if (!('serviceWorker' in navigator)) return;
+    navigator.serviceWorker.addEventListener('message', function (e) {
+      if (e.data && e.data.type === 'NOTIFICATION_RECEIVED') {
+        // Push 수신 시 뱃지 즉시 갱신
+        fetchUnreadCount();
+      }
+    });
+  }
+
+  /* ========== Helpers ========== */
+  function _timeAgo(dateStr) {
+    if (!dateStr) return '';
+    var now = Date.now();
+    var then = new Date(dateStr).getTime();
+    var diff = Math.floor((now - then) / 1000);
+    if (diff < 60) return '방금 전';
+    if (diff < 3600) return Math.floor(diff / 60) + '분 전';
+    if (diff < 86400) return Math.floor(diff / 3600) + '시간 전';
+    if (diff < 604800) return Math.floor(diff / 86400) + '일 전';
+    return dateStr.substring(0, 10);
+  }
+
+  function _typeLabel(type) {
+    var map = { system: '시스템', repair: '수리', safety: '안전', maintenance: '구매' };
+    return map[type] || type || '알림';
+  }
+
+  function _escHtml(s) {
+    if (!s) return '';
+    var d = document.createElement('div');
+    d.textContent = s;
+    return d.innerHTML;
+  }
+
+  function _escAttr(s) {
+    if (!s) return '';
+    return s.replace(/&/g, '&amp;').replace(/"/g, '&quot;').replace(/'/g, '&#39;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+  }
+
+  function _urlBase64ToUint8Array(base64String) {
+    var padding = '='.repeat((4 - base64String.length % 4) % 4);
+    var base64 = (base64String + padding).replace(/-/g, '+').replace(/_/g, '/');
+    var raw = atob(base64);
+    var arr = new Uint8Array(raw.length);
+    for (var i = 0; i < raw.length; i++) arr[i] = raw.charCodeAt(i);
+    return arr;
+  }
+
+  /* ========== Init ========== */
+  function init() {
+    // 토큰 없으면 동작하지 않음
+    if (!_getToken()) return;
+
+    injectBell();
+    startPolling();
+    checkPushStatus();
+    listenForPushMessages();
+  }
+
+  // DOM ready 또는 즉시 실행
+  if (document.readyState === 'loading') {
+    document.addEventListener('DOMContentLoaded', init);
+  } else {
+    init();
+  }
+})();
diff --git a/system1-factory/api/config/cors.js b/system1-factory/api/config/cors.js
index 723664d..0cdd6dd 100644
--- a/system1-factory/api/config/cors.js
+++ b/system1-factory/api/config/cors.js
@@ -13,9 +13,12 @@ const logger = require('../utils/logger');
  * 허용된 Origin 목록
  */
 const allowedOrigins = [
-  'https://tkfb.technicalkorea.net',    // Gateway (프로덕션)
-  'https://tkreport.technicalkorea.net', // System 2
-  'https://tkqc.technicalkorea.net',     // System 3
+  'https://tkfb.technicalkorea.net',      // Gateway (프로덕션)
+  'https://tkreport.technicalkorea.net',   // System 2
+  'https://tkqc.technicalkorea.net',       // System 3
+  'https://tkuser.technicalkorea.net',     // User Management
+  'https://tkpurchase.technicalkorea.net', // Purchase Management
+  'https://tksafety.technicalkorea.net',   // Safety Management
   'http://localhost:20000',   // 웹 UI (로컬)
   'http://localhost:30080',   // 웹 UI (Docker)
   'http://localhost:3005',    // API 서버
@@ -77,7 +80,7 @@ const corsOptions = {
   /**
    * 허용된 헤더
    */
-  allowedHeaders: ['Content-Type', 'Authorization', 'X-Requested-With'],
+  allowedHeaders: ['Content-Type', 'Authorization', 'X-Requested-With', 'X-Internal-Service-Key'],
 
   /**
    * 노출할 헤더
diff --git a/system1-factory/api/config/routes.js b/system1-factory/api/config/routes.js
index bbe6d0e..1b1594a 100644
--- a/system1-factory/api/config/routes.js
+++ b/system1-factory/api/config/routes.js
@@ -51,6 +51,7 @@ function setupRoutes(app) {
   const departmentRoutes = require('../routes/departmentRoutes');
   const patrolRoutes = require('../routes/patrolRoutes');
   const notificationRoutes = require('../routes/notificationRoutes');
+  const pushSubscriptionRoutes = require('../routes/pushSubscriptionRoutes');
 
   // Rate Limiters 설정
   const rateLimit = require('express-rate-limit');
@@ -105,7 +106,9 @@ function setupRoutes(app) {
     '/api/setup/migrate-existing-data',
     '/api/setup/check-data-status',
     '/api/monthly-status/calendar',
-    '/api/monthly-status/daily-details'
+    '/api/monthly-status/daily-details',
+    '/api/push/vapid-public-key',
+    '/api/notifications/internal'
   ];
 
   // 인증 미들웨어 - 공개 경로를 제외한 모든 API (rate limiter보다 먼저 실행)
@@ -157,6 +160,7 @@ function setupRoutes(app) {
   app.use('/api/departments', departmentRoutes); // 부서 관리
   app.use('/api/patrol', patrolRoutes); // 일일순회점검 시스템
   app.use('/api/notifications', notificationRoutes); // 알림 시스템
+  app.use('/api/push', pushSubscriptionRoutes); // Push 구독
   app.use('/api', uploadBgRoutes);
 
   // Swagger API 문서
diff --git a/system1-factory/api/controllers/notificationController.js b/system1-factory/api/controllers/notificationController.js
index 2863a19..2c2cd07 100644
--- a/system1-factory/api/controllers/notificationController.js
+++ b/system1-factory/api/controllers/notificationController.js
@@ -159,6 +159,44 @@ const notificationController = {
         message: '알림 생성 중 오류가 발생했습니다.'
       });
     }
+  },
+
+  // 내부 서비스용 알림 생성 (X-Internal-Service-Key 인증)
+  async createInternal(req, res) {
+    try {
+      const serviceKey = req.headers['x-internal-service-key'];
+      if (!serviceKey || serviceKey !== process.env.INTERNAL_SERVICE_KEY) {
+        return res.status(403).json({ success: false, message: '권한이 없습니다.' });
+      }
+
+      const { type, title, message, link_url, reference_type, reference_id, created_by } = req.body;
+
+      if (!title) {
+        return res.status(400).json({ success: false, message: '알림 제목은 필수입니다.' });
+      }
+
+      const results = await notificationModel.createTypedNotification({
+        type: type || 'system',
+        title,
+        message,
+        link_url,
+        reference_type,
+        reference_id,
+        created_by
+      });
+
+      res.json({
+        success: true,
+        message: '알림이 생성되었습니다.',
+        data: { notification_ids: Array.isArray(results) ? results : [results] }
+      });
+    } catch (error) {
+      console.error('내부 알림 생성 오류:', error);
+      res.status(500).json({
+        success: false,
+        message: '알림 생성 중 오류가 발생했습니다.'
+      });
+    }
   }
 };
 
diff --git a/system1-factory/api/controllers/pushSubscriptionController.js b/system1-factory/api/controllers/pushSubscriptionController.js
new file mode 100644
index 0000000..a165317
--- /dev/null
+++ b/system1-factory/api/controllers/pushSubscriptionController.js
@@ -0,0 +1,49 @@
+// controllers/pushSubscriptionController.js
+const pushSubscriptionModel = require('../models/pushSubscriptionModel');
+
+const pushSubscriptionController = {
+  // VAPID 공개키 반환 (인증 불필요)
+  async getVapidPublicKey(req, res) {
+    const vapidPublicKey = process.env.VAPID_PUBLIC_KEY;
+    if (!vapidPublicKey) {
+      return res.status(500).json({ success: false, message: 'VAPID 키가 설정되지 않았습니다.' });
+    }
+    res.json({ success: true, data: { vapidPublicKey } });
+  },
+
+  // Push 구독 저장
+  async subscribe(req, res) {
+    try {
+      const userId = req.user?.id;
+      const { subscription } = req.body;
+
+      if (!subscription || !subscription.endpoint || !subscription.keys) {
+        return res.status(400).json({ success: false, message: '유효한 구독 정보가 필요합니다.' });
+      }
+
+      await pushSubscriptionModel.subscribe(userId, subscription);
+      res.json({ success: true, message: 'Push 구독이 등록되었습니다.' });
+    } catch (error) {
+      console.error('Push 구독 오류:', error);
+      res.status(500).json({ success: false, message: 'Push 구독 중 오류가 발생했습니다.' });
+    }
+  },
+
+  // Push 구독 해제
+  async unsubscribe(req, res) {
+    try {
+      const { endpoint } = req.body;
+      if (!endpoint) {
+        return res.status(400).json({ success: false, message: 'endpoint가 필요합니다.' });
+      }
+
+      await pushSubscriptionModel.unsubscribe(endpoint);
+      res.json({ success: true, message: 'Push 구독이 해제되었습니다.' });
+    } catch (error) {
+      console.error('Push 구독 해제 오류:', error);
+      res.status(500).json({ success: false, message: 'Push 구독 해제 중 오류가 발생했습니다.' });
+    }
+  }
+};
+
+module.exports = pushSubscriptionController;
diff --git a/system1-factory/api/db/migrations/20260313001000_create_push_subscriptions.sql b/system1-factory/api/db/migrations/20260313001000_create_push_subscriptions.sql
new file mode 100644
index 0000000..8122b4d
--- /dev/null
+++ b/system1-factory/api/db/migrations/20260313001000_create_push_subscriptions.sql
@@ -0,0 +1,13 @@
+-- Push 구독 테이블 생성
+-- 실행: docker exec -i tk-mariadb mysql -uhyungi_user -p'hyung-ddfdf3-D341@' hyungi < db/migrations/20260313001000_create_push_subscriptions.sql
+
+CREATE TABLE IF NOT EXISTS push_subscriptions (
+  id INT AUTO_INCREMENT PRIMARY KEY,
+  user_id INT NOT NULL,
+  endpoint VARCHAR(1000) NOT NULL,
+  p256dh VARCHAR(500) NOT NULL,
+  auth VARCHAR(500) NOT NULL,
+  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  UNIQUE KEY uk_endpoint (endpoint(500)),
+  INDEX idx_push_user (user_id)
+);
diff --git a/system1-factory/api/index.js b/system1-factory/api/index.js
index 186d254..8c8646a 100644
--- a/system1-factory/api/index.js
+++ b/system1-factory/api/index.js
@@ -120,4 +120,21 @@ process.on('uncaughtException', (error) => {
   }
 })();
 
+// 오래된 알림 정리 cron (매일 03:00 KST)
+(function scheduleNotificationCleanup() {
+  const notificationModel = require('./models/notificationModel');
+  function runCleanup() {
+    const now = new Date();
+    const kstHour = (now.getUTCHours() + 9) % 24;
+    if (kstHour === 3 && now.getMinutes() < 1) {
+      notificationModel.deleteOld(30).then(count => {
+        if (count > 0) logger.info(`오래된 알림 ${count}건 정리 완료`);
+      }).catch(err => {
+        logger.error('알림 정리 실패:', { error: err.message });
+      });
+    }
+  }
+  setInterval(runCleanup, 60000); // 1분마다 확인
+})();
+
 module.exports = app;
diff --git a/system1-factory/api/models/notificationModel.js b/system1-factory/api/models/notificationModel.js
index a3a52af..2cdcf97 100644
--- a/system1-factory/api/models/notificationModel.js
+++ b/system1-factory/api/models/notificationModel.js
@@ -1,6 +1,60 @@
 // models/notificationModel.js
 const { getDb } = require('../dbPool');
 
+// Web Push (lazy init)
+let webpush = null;
+let vapidConfigured = false;
+
+function getWebPush() {
+  if (!webpush) {
+    try {
+      webpush = require('web-push');
+      if (process.env.VAPID_PUBLIC_KEY && process.env.VAPID_PRIVATE_KEY) {
+        webpush.setVapidDetails(
+          process.env.VAPID_SUBJECT || 'mailto:admin@technicalkorea.net',
+          process.env.VAPID_PUBLIC_KEY,
+          process.env.VAPID_PRIVATE_KEY
+        );
+        vapidConfigured = true;
+      }
+    } catch (e) {
+      console.warn('[notifications] web-push 모듈 로드 실패:', e.message);
+    }
+  }
+  return vapidConfigured ? webpush : null;
+}
+
+// Push 전송 헬퍼 — 알림 생성 후 호출
+async function sendPushToUsers(userIds, payload) {
+  const wp = getWebPush();
+  if (!wp) return;
+
+  try {
+    const pushModel = require('./pushSubscriptionModel');
+    const subscriptions = userIds && userIds.length > 0
+      ? await pushModel.getByUserIds(userIds)
+      : await pushModel.getAll(); // broadcast
+
+    const payloadStr = JSON.stringify(payload);
+
+    for (const sub of subscriptions) {
+      try {
+        await wp.sendNotification({
+          endpoint: sub.endpoint,
+          keys: { p256dh: sub.p256dh, auth: sub.auth }
+        }, payloadStr);
+      } catch (err) {
+        // 만료 구독 (410 Gone, 404 Not Found) 자동 정리
+        if (err.statusCode === 410 || err.statusCode === 404) {
+          await pushModel.deleteByEndpoint(sub.endpoint).catch(() => {});
+        }
+      }
+    }
+  } catch (e) {
+    console.error('[notifications] Push 전송 오류:', e.message);
+  }
+}
+
 // 순환 참조를 피하기 위해 함수 내에서 require
 async function getRecipientIds(notificationType) {
   const db = await getDb();
@@ -24,6 +78,9 @@ const notificationModel = {
       [user_id || null, type || 'system', title, message || null, link_url || null, reference_type || null, reference_id || null, created_by || null]
     );
 
+    // Redis 캐시 무효화
+    this._invalidateCache(user_id);
+
     return result.insertId;
   },
 
@@ -66,10 +123,13 @@ const notificationModel = {
   // 알림 읽음 처리
   async markAsRead(notificationId) {
     const db = await getDb();
+    // 읽음 처리 전 user_id 조회 (캐시 무효화용)
+    const [[row]] = await db.query('SELECT user_id FROM notifications WHERE notification_id = ?', [notificationId]);
     const [result] = await db.query(
       `UPDATE notifications SET is_read = 1, read_at = NOW() WHERE notification_id = ?`,
       [notificationId]
     );
+    if (row) this._invalidateCache(row.user_id);
     return result.affectedRows > 0;
   },
 
@@ -81,6 +141,7 @@ const notificationModel = {
        WHERE is_read = 0 AND (user_id IS NULL OR user_id = ?)`,
       [userId || 0]
     );
+    this._invalidateCache(userId);
     return result.affectedRows;
   },
 
@@ -104,17 +165,39 @@ const notificationModel = {
     return result.affectedRows;
   },
 
-  // 읽지 않은 알림 개수
+  // 읽지 않은 알림 개수 (캐싱)
   async getUnreadCount(userId = null) {
+    const cacheKey = `notif:unread:${userId || 0}`;
+    try {
+      const cache = require('../utils/cache');
+      const cached = await cache.get(cacheKey);
+      if (cached !== null && cached !== undefined) return cached;
+    } catch (e) { /* 무시 */ }
+
     const db = await getDb();
     const [[{ count }]] = await db.query(
       `SELECT COUNT(*) as count FROM notifications
        WHERE is_read = 0 AND (user_id IS NULL OR user_id = ?)`,
       [userId || 0]
     );
+
+    try {
+      const cache = require('../utils/cache');
+      await cache.set(cacheKey, count, 30); // TTL 30초
+    } catch (e) { /* 무시 */ }
+
     return count;
   },
 
+  // 캐시 무효화
+  _invalidateCache(userId) {
+    try {
+      const cache = require('../utils/cache');
+      cache.del(`notif:unread:${userId || 0}`).catch(() => {});
+      if (userId) cache.del('notif:unread:0').catch(() => {});
+    } catch (e) { /* 무시 */ }
+  },
+
   // 수리 신청 알림 생성 헬퍼 (지정된 수신자에게 전송)
   async createRepairNotification(repairData) {
     const { equipment_id, equipment_name, repair_type, request_id, created_by } = repairData;
@@ -124,7 +207,7 @@ const notificationModel = {
 
     if (recipientIds.length === 0) {
       // 수신자가 지정되지 않은 경우 전체 알림 (user_id = null)
-      return await this.create({
+      const id = await this.create({
         type: 'repair',
         title: `수리 신청: ${equipment_name || '설비'}`,
         message: `${repair_type} 수리가 신청되었습니다.`,
@@ -133,6 +216,13 @@ const notificationModel = {
         reference_id: request_id,
         created_by
       });
+      // Push (broadcast)
+      sendPushToUsers([], {
+        title: `수리 신청: ${equipment_name || '설비'}`,
+        body: `${repair_type} 수리가 신청되었습니다.`,
+        url: `/pages/admin/repair-management.html`
+      });
+      return id;
     }
 
     // 지정된 수신자 각각에게 알림 생성
@@ -151,6 +241,13 @@ const notificationModel = {
       results.push(notificationId);
     }
 
+    // Push 전송
+    sendPushToUsers(recipientIds, {
+      title: `수리 신청: ${equipment_name || '설비'}`,
+      body: `${repair_type} 수리가 신청되었습니다.`,
+      url: `/pages/admin/repair-management.html`
+    });
+
     return results;
   },
 
@@ -163,7 +260,7 @@ const notificationModel = {
 
     if (recipientIds.length === 0) {
       // 수신자가 지정되지 않은 경우 전체 알림
-      return await this.create({
+      const id = await this.create({
         type,
         title,
         message,
@@ -172,6 +269,9 @@ const notificationModel = {
         reference_id,
         created_by
       });
+      // Push (broadcast)
+      sendPushToUsers([], { title, body: message || '', url: link_url || '/' });
+      return id;
     }
 
     // 지정된 수신자 각각에게 알림 생성
@@ -190,6 +290,9 @@ const notificationModel = {
       results.push(notificationId);
     }
 
+    // Push 전송
+    sendPushToUsers(recipientIds, { title, body: message || '', url: link_url || '/' });
+
     return results;
   }
 };
diff --git a/system1-factory/api/models/pushSubscriptionModel.js b/system1-factory/api/models/pushSubscriptionModel.js
new file mode 100644
index 0000000..0cc7c1d
--- /dev/null
+++ b/system1-factory/api/models/pushSubscriptionModel.js
@@ -0,0 +1,52 @@
+// models/pushSubscriptionModel.js
+const { getDb } = require('../dbPool');
+
+const pushSubscriptionModel = {
+  async subscribe(userId, subscription) {
+    const db = await getDb();
+    const { endpoint, keys } = subscription;
+    await db.query(
+      `INSERT INTO push_subscriptions (user_id, endpoint, p256dh, auth)
+       VALUES (?, ?, ?, ?)
+       ON DUPLICATE KEY UPDATE user_id = VALUES(user_id), p256dh = VALUES(p256dh), auth = VALUES(auth)`,
+      [userId, endpoint, keys.p256dh, keys.auth]
+    );
+  },
+
+  async unsubscribe(endpoint) {
+    const db = await getDb();
+    await db.query('DELETE FROM push_subscriptions WHERE endpoint = ?', [endpoint]);
+  },
+
+  async getByUserId(userId) {
+    const db = await getDb();
+    const [rows] = await db.query(
+      'SELECT * FROM push_subscriptions WHERE user_id = ?',
+      [userId]
+    );
+    return rows;
+  },
+
+  async getByUserIds(userIds) {
+    if (!userIds || userIds.length === 0) return [];
+    const db = await getDb();
+    const [rows] = await db.query(
+      'SELECT * FROM push_subscriptions WHERE user_id IN (?)',
+      [userIds]
+    );
+    return rows;
+  },
+
+  async getAll() {
+    const db = await getDb();
+    const [rows] = await db.query('SELECT * FROM push_subscriptions');
+    return rows;
+  },
+
+  async deleteByEndpoint(endpoint) {
+    const db = await getDb();
+    await db.query('DELETE FROM push_subscriptions WHERE endpoint = ?', [endpoint]);
+  }
+};
+
+module.exports = pushSubscriptionModel;
diff --git a/system1-factory/api/package.json b/system1-factory/api/package.json
index efe43f1..ce76d6f 100644
--- a/system1-factory/api/package.json
+++ b/system1-factory/api/package.json
@@ -39,7 +39,8 @@
     "qrcode": "^1.5.4",
     "redis": "^5.9.0",
     "swagger-jsdoc": "^6.2.8",
-    "swagger-ui-express": "^5.0.1"
+    "swagger-ui-express": "^5.0.1",
+    "web-push": "^3.6.7"
   },
   "devDependencies": {
     "@types/jest": "^29.5.12",
diff --git a/system1-factory/api/routes/notificationRoutes.js b/system1-factory/api/routes/notificationRoutes.js
index fbd5fa4..5637401 100644
--- a/system1-factory/api/routes/notificationRoutes.js
+++ b/system1-factory/api/routes/notificationRoutes.js
@@ -4,7 +4,10 @@ const router = express.Router();
 const notificationController = require('../controllers/notificationController');
 const { requireAuth, requireMinLevel } = require('../middlewares/auth');
 
-// 모든 알림 라우트는 인증 필요
+// 내부 서비스용 알림 생성 (X-Internal-Service-Key 인증, JWT 불필요)
+router.post('/internal', notificationController.createInternal);
+
+// 이하 모든 라우트는 JWT 인증 필요
 router.use(requireAuth);
 
 // 읽지 않은 알림 조회 (본인 알림만)
diff --git a/system1-factory/api/routes/pushSubscriptionRoutes.js b/system1-factory/api/routes/pushSubscriptionRoutes.js
new file mode 100644
index 0000000..33b5f2a
--- /dev/null
+++ b/system1-factory/api/routes/pushSubscriptionRoutes.js
@@ -0,0 +1,14 @@
+// routes/pushSubscriptionRoutes.js
+const express = require('express');
+const router = express.Router();
+const pushController = require('../controllers/pushSubscriptionController');
+const { requireAuth } = require('../middlewares/auth');
+
+// VAPID 공개키 (인증 불필요)
+router.get('/vapid-public-key', pushController.getVapidPublicKey);
+
+// 구독/해제 (인증 필요)
+router.post('/subscribe', requireAuth, pushController.subscribe);
+router.delete('/unsubscribe', requireAuth, pushController.unsubscribe);
+
+module.exports = router;
diff --git a/system1-factory/web/pages/admin/attendance-report.html b/system1-factory/web/pages/admin/attendance-report.html
index 844a3b0..3cb6271 100644
--- a/system1-factory/web/pages/admin/attendance-report.html
+++ b/system1-factory/web/pages/admin/attendance-report.html
@@ -190,7 +190,7 @@
         </div>
     </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
   <script type="module">
diff --git a/system1-factory/web/pages/admin/departments.html b/system1-factory/web/pages/admin/departments.html
index cf75ee2..75dff09 100644
--- a/system1-factory/web/pages/admin/departments.html
+++ b/system1-factory/web/pages/admin/departments.html
@@ -324,7 +324,7 @@
     </div>
   </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="/js/department-management.js"></script>
   <script>initAuth();</script>
diff --git a/system1-factory/web/pages/admin/equipment-detail.html b/system1-factory/web/pages/admin/equipment-detail.html
index c881a10..0534502 100644
--- a/system1-factory/web/pages/admin/equipment-detail.html
+++ b/system1-factory/web/pages/admin/equipment-detail.html
@@ -314,7 +314,7 @@
     </div>
   </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
   <script type="module">
diff --git a/system1-factory/web/pages/admin/equipments.html b/system1-factory/web/pages/admin/equipments.html
index 8ce01fc..162a3c5 100644
--- a/system1-factory/web/pages/admin/equipments.html
+++ b/system1-factory/web/pages/admin/equipments.html
@@ -190,7 +190,7 @@
     </div>
   </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
   <script type="module">
diff --git a/system1-factory/web/pages/admin/issue-categories.html b/system1-factory/web/pages/admin/issue-categories.html
index 886cdba..a3f5d1e 100644
--- a/system1-factory/web/pages/admin/issue-categories.html
+++ b/system1-factory/web/pages/admin/issue-categories.html
@@ -329,7 +329,7 @@
     </div>
   </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script type="module" src="/js/issue-category-manage.js"></script>
   <script>initAuth();</script>
diff --git a/system1-factory/web/pages/admin/notifications.html b/system1-factory/web/pages/admin/notifications.html
index be29eeb..649baa6 100644
--- a/system1-factory/web/pages/admin/notifications.html
+++ b/system1-factory/web/pages/admin/notifications.html
@@ -375,7 +375,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkfb-core.js"></script>
+    <script src="/static/js/tkfb-core.js?v=20260313"></script>
     <script src="/js/api-base.js?v=3"></script>
     <script>
         let currentPage = 1;
diff --git a/system1-factory/web/pages/admin/projects.html b/system1-factory/web/pages/admin/projects.html
index 189df7f..8a86b00 100644
--- a/system1-factory/web/pages/admin/projects.html
+++ b/system1-factory/web/pages/admin/projects.html
@@ -384,7 +384,7 @@
     </div>
   </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script>
     let allProjects = [];
diff --git a/system1-factory/web/pages/admin/repair-management.html b/system1-factory/web/pages/admin/repair-management.html
index 98c072b..5af0265 100644
--- a/system1-factory/web/pages/admin/repair-management.html
+++ b/system1-factory/web/pages/admin/repair-management.html
@@ -487,7 +487,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkfb-core.js"></script>
+    <script src="/static/js/tkfb-core.js?v=20260313"></script>
     <script src="/js/api-base.js?v=3"></script>
     <script>
         let currentReportId = null;
diff --git a/system1-factory/web/pages/admin/tasks.html b/system1-factory/web/pages/admin/tasks.html
index 5ca27cf..2eff470 100644
--- a/system1-factory/web/pages/admin/tasks.html
+++ b/system1-factory/web/pages/admin/tasks.html
@@ -285,7 +285,7 @@
     </div>
   </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script>
     let workTypes = [];
diff --git a/system1-factory/web/pages/admin/workplaces.html b/system1-factory/web/pages/admin/workplaces.html
index 4784246..b9942c8 100644
--- a/system1-factory/web/pages/admin/workplaces.html
+++ b/system1-factory/web/pages/admin/workplaces.html
@@ -431,7 +431,7 @@
   </div>
 
   <!-- 작업장 관리 모듈 (리팩토링된 구조) -->
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="/js/workplace-management/state.js?v=1"></script>
   <script src="/js/workplace-management/utils.js?v=1"></script>
diff --git a/system1-factory/web/pages/attendance/annual-overview.html b/system1-factory/web/pages/attendance/annual-overview.html
index bb16840..cd1e8a4 100644
--- a/system1-factory/web/pages/attendance/annual-overview.html
+++ b/system1-factory/web/pages/attendance/annual-overview.html
@@ -328,7 +328,7 @@
     </div>
   </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
   <script>
diff --git a/system1-factory/web/pages/attendance/checkin.html b/system1-factory/web/pages/attendance/checkin.html
index e3d3ccb..f72d7dc 100644
--- a/system1-factory/web/pages/attendance/checkin.html
+++ b/system1-factory/web/pages/attendance/checkin.html
@@ -222,7 +222,7 @@
         </div>
     </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
   <script>
diff --git a/system1-factory/web/pages/attendance/daily.html b/system1-factory/web/pages/attendance/daily.html
index 40c4293..d192b58 100644
--- a/system1-factory/web/pages/attendance/daily.html
+++ b/system1-factory/web/pages/attendance/daily.html
@@ -70,7 +70,7 @@
         </div>
     </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
   <script>
diff --git a/system1-factory/web/pages/attendance/monthly.html b/system1-factory/web/pages/attendance/monthly.html
index 44bdfdc..58b154b 100644
--- a/system1-factory/web/pages/attendance/monthly.html
+++ b/system1-factory/web/pages/attendance/monthly.html
@@ -474,7 +474,7 @@
     </div>
   </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
   <script>
diff --git a/system1-factory/web/pages/attendance/my-vacation-info.html b/system1-factory/web/pages/attendance/my-vacation-info.html
index 2e9d280..afab8f9 100644
--- a/system1-factory/web/pages/attendance/my-vacation-info.html
+++ b/system1-factory/web/pages/attendance/my-vacation-info.html
@@ -265,7 +265,7 @@
         </div>
     </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
   <script>
diff --git a/system1-factory/web/pages/attendance/vacation-allocation.html b/system1-factory/web/pages/attendance/vacation-allocation.html
index 2600c5b..9578118 100644
--- a/system1-factory/web/pages/attendance/vacation-allocation.html
+++ b/system1-factory/web/pages/attendance/vacation-allocation.html
@@ -353,7 +353,7 @@
     </div>
   </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script type="module" src="/js/vacation-allocation.js" defer></script>
   <script>initAuth();</script>
diff --git a/system1-factory/web/pages/attendance/vacation-approval.html b/system1-factory/web/pages/attendance/vacation-approval.html
index e58ceb3..5175712 100644
--- a/system1-factory/web/pages/attendance/vacation-approval.html
+++ b/system1-factory/web/pages/attendance/vacation-approval.html
@@ -123,7 +123,7 @@
         </div>
     </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
   <script src="/js/vacation-common.js"></script>
diff --git a/system1-factory/web/pages/attendance/vacation-input.html b/system1-factory/web/pages/attendance/vacation-input.html
index 45a648f..023ffba 100644
--- a/system1-factory/web/pages/attendance/vacation-input.html
+++ b/system1-factory/web/pages/attendance/vacation-input.html
@@ -123,7 +123,7 @@
         </div>
     </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
   <script src="/js/vacation-common.js"></script>
diff --git a/system1-factory/web/pages/attendance/vacation-management.html b/system1-factory/web/pages/attendance/vacation-management.html
index b03a0d4..5ee573d 100644
--- a/system1-factory/web/pages/attendance/vacation-management.html
+++ b/system1-factory/web/pages/attendance/vacation-management.html
@@ -205,7 +205,7 @@
         </div>
     </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
   <script src="/js/vacation-common.js"></script>
diff --git a/system1-factory/web/pages/attendance/vacation-request.html b/system1-factory/web/pages/attendance/vacation-request.html
index b83181c..96e94eb 100644
--- a/system1-factory/web/pages/attendance/vacation-request.html
+++ b/system1-factory/web/pages/attendance/vacation-request.html
@@ -117,7 +117,7 @@
         </div>
     </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
   <script src="/js/vacation-common.js"></script>
diff --git a/system1-factory/web/pages/attendance/work-status.html b/system1-factory/web/pages/attendance/work-status.html
index 01de510..1b87f42 100644
--- a/system1-factory/web/pages/attendance/work-status.html
+++ b/system1-factory/web/pages/attendance/work-status.html
@@ -276,7 +276,7 @@
         </div>
     </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
   <script>
diff --git a/system1-factory/web/pages/dashboard-new.html b/system1-factory/web/pages/dashboard-new.html
index 5a9c8b8..c13da25 100644
--- a/system1-factory/web/pages/dashboard-new.html
+++ b/system1-factory/web/pages/dashboard-new.html
@@ -138,7 +138,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkfb-core.js"></script>
+    <script src="/static/js/tkfb-core.js?v=20260313"></script>
     <script src="/static/js/tkfb-dashboard.js"></script>
 </body>
 </html>
diff --git a/system1-factory/web/pages/dashboard.html b/system1-factory/web/pages/dashboard.html
index 3940a68..4cb5bea 100644
--- a/system1-factory/web/pages/dashboard.html
+++ b/system1-factory/web/pages/dashboard.html
@@ -323,7 +323,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkfb-core.js"></script>
+    <script src="/static/js/tkfb-core.js?v=20260313"></script>
     <script src="/js/api-base.js?v=3"></script>
     <script type="module" src="/js/modern-dashboard.js?v=10"></script>
     <script type="module" src="/js/group-leader-dashboard.js?v=1"></script>
diff --git a/system1-factory/web/pages/inspection/daily-patrol.html b/system1-factory/web/pages/inspection/daily-patrol.html
index 0ae0cd0..4a9129a 100644
--- a/system1-factory/web/pages/inspection/daily-patrol.html
+++ b/system1-factory/web/pages/inspection/daily-patrol.html
@@ -209,7 +209,7 @@
       }, 50);
     })();
   </script>
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="/js/daily-patrol.js?v=6"></script>
   <script>initAuth();</script>
diff --git a/system1-factory/web/pages/inspection/zone-detail.html b/system1-factory/web/pages/inspection/zone-detail.html
index da060a9..7a8894b 100644
--- a/system1-factory/web/pages/inspection/zone-detail.html
+++ b/system1-factory/web/pages/inspection/zone-detail.html
@@ -304,7 +304,7 @@
       }, 50);
     })();
   </script>
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="/js/zone-detail.js?v=6"></script>
   <script>initAuth();</script>
diff --git a/system1-factory/web/pages/profile/info.html b/system1-factory/web/pages/profile/info.html
index aeb6eed..a6092e9 100644
--- a/system1-factory/web/pages/profile/info.html
+++ b/system1-factory/web/pages/profile/info.html
@@ -320,7 +320,7 @@
         </div>
     </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script type="module" src="/js/my-profile.js"></script>
   <script>initAuth();</script>
diff --git a/system1-factory/web/pages/profile/password.html b/system1-factory/web/pages/profile/password.html
index 8a75b6b..612153d 100644
--- a/system1-factory/web/pages/profile/password.html
+++ b/system1-factory/web/pages/profile/password.html
@@ -390,7 +390,7 @@
         </div>
     </div>
 
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script type="module" src="/js/change-password.js"></script>
   <script>initAuth();</script>
diff --git a/system1-factory/web/pages/work/analysis.html b/system1-factory/web/pages/work/analysis.html
index ff258f9..62618a9 100644
--- a/system1-factory/web/pages/work/analysis.html
+++ b/system1-factory/web/pages/work/analysis.html
@@ -277,7 +277,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkfb-core.js"></script>
+    <script src="/static/js/tkfb-core.js?v=20260313"></script>
     <script src="/js/api-base.js?v=3"></script>
     <script type="module" src="/js/work-analysis.js?v=5"></script>
 
diff --git a/system1-factory/web/pages/work/nonconformity.html b/system1-factory/web/pages/work/nonconformity.html
index 4228ace..b41cede 100644
--- a/system1-factory/web/pages/work/nonconformity.html
+++ b/system1-factory/web/pages/work/nonconformity.html
@@ -90,7 +90,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkfb-core.js"></script>
+    <script src="/static/js/tkfb-core.js?v=20260313"></script>
     <script src="/static/js/tkfb-nonconformity.js"></script>
 </body>
 </html>
diff --git a/system1-factory/web/pages/work/report-create-mobile.html b/system1-factory/web/pages/work/report-create-mobile.html
index ac7c7ce..67f60df 100644
--- a/system1-factory/web/pages/work/report-create-mobile.html
+++ b/system1-factory/web/pages/work/report-create-mobile.html
@@ -189,7 +189,7 @@
   </div>
 
   <!-- 공통 모듈 -->
-  <script src="/static/js/tkfb-core.js"></script>
+  <script src="/static/js/tkfb-core.js?v=20260313"></script>
   <script src="/js/api-base.js?v=3"></script>
   <script src="/js/common/utils.js?v=1"></script>
   <script src="/js/common/base-state.js?v=1"></script>
diff --git a/system1-factory/web/pages/work/report-create.html b/system1-factory/web/pages/work/report-create.html
index 982a1cf..5c69ede 100644
--- a/system1-factory/web/pages/work/report-create.html
+++ b/system1-factory/web/pages/work/report-create.html
@@ -149,7 +149,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkfb-core.js"></script>
+    <script src="/static/js/tkfb-core.js?v=20260313"></script>
     <script src="/js/api-base.js?v=3"></script>
     <script src="/js/common/utils.js?v=1"></script>
     <script src="/js/common/base-state.js?v=1"></script>
diff --git a/system1-factory/web/pages/work/tbm-create.html b/system1-factory/web/pages/work/tbm-create.html
index e0833ed..7c6cd4f 100644
--- a/system1-factory/web/pages/work/tbm-create.html
+++ b/system1-factory/web/pages/work/tbm-create.html
@@ -843,7 +843,7 @@
     </div>
 
     <!-- Scripts -->
-    <script src="/static/js/tkfb-core.js"></script>
+    <script src="/static/js/tkfb-core.js?v=20260313"></script>
     <script src="/js/api-base.js?v=3"></script>
     <!-- 공통 모듈 -->
     <script src="/js/common/utils.js?v=2"></script>
diff --git a/system1-factory/web/pages/work/tbm-mobile.html b/system1-factory/web/pages/work/tbm-mobile.html
index b79c0cd..863aebf 100644
--- a/system1-factory/web/pages/work/tbm-mobile.html
+++ b/system1-factory/web/pages/work/tbm-mobile.html
@@ -296,7 +296,7 @@
     </div>
 
     <!-- 공통 모듈 -->
-    <script src="/static/js/tkfb-core.js"></script>
+    <script src="/static/js/tkfb-core.js?v=20260313"></script>
     <script src="/js/api-base.js?v=3"></script>
     <script src="/js/common/utils.js?v=2"></script>
     <script src="/js/common/base-state.js?v=2"></script>
diff --git a/system1-factory/web/pages/work/tbm.html b/system1-factory/web/pages/work/tbm.html
index f8cad9c..44dec6c 100644
--- a/system1-factory/web/pages/work/tbm.html
+++ b/system1-factory/web/pages/work/tbm.html
@@ -560,7 +560,7 @@
     <!-- 토스트 -->
     <div class="toast-container" id="toastContainer"></div>
 
-    <script src="/static/js/tkfb-core.js"></script>
+    <script src="/static/js/tkfb-core.js?v=20260313"></script>
     <script src="/js/api-base.js?v=3"></script>
     <script src="/js/common/utils.js?v=2"></script>
     <script src="/js/common/base-state.js?v=2"></script>
diff --git a/system1-factory/web/push-sw.js b/system1-factory/web/push-sw.js
new file mode 100644
index 0000000..930acbc
--- /dev/null
+++ b/system1-factory/web/push-sw.js
@@ -0,0 +1,41 @@
+// Push Notification Service Worker
+// 캐싱 없음 — Push 수신 전용
+
+self.addEventListener('push', function(event) {
+  var data = { title: '알림', body: '새 알림이 있습니다.', url: '/' };
+  if (event.data) {
+    try { data = Object.assign(data, event.data.json()); } catch(e) {}
+  }
+  event.waitUntil(
+    self.registration.showNotification(data.title, {
+      body: data.body,
+      icon: '/static/img/icon-192.png',
+      badge: '/static/img/badge-72.png',
+      data: { url: data.url || '/' },
+      tag: 'tk-notification-' + Date.now(),
+      renotify: true
+    })
+  );
+  // 메인 페이지에 뱃지 갱신 신호 전송
+  self.clients.matchAll({ type: 'window' }).then(function(clients) {
+    clients.forEach(function(client) {
+      client.postMessage({ type: 'NOTIFICATION_RECEIVED' });
+    });
+  });
+});
+
+self.addEventListener('notificationclick', function(event) {
+  event.notification.close();
+  var url = (event.notification.data && event.notification.data.url) || '/';
+  event.waitUntil(
+    self.clients.matchAll({ type: 'window' }).then(function(clients) {
+      for (var i = 0; i < clients.length; i++) {
+        if (clients[i].url.includes(self.location.origin)) {
+          clients[i].navigate(url);
+          return clients[i].focus();
+        }
+      }
+      return self.clients.openWindow(url);
+    })
+  );
+});
diff --git a/system1-factory/web/static/js/tkfb-core.js b/system1-factory/web/static/js/tkfb-core.js
index bb9f110..0f08a19 100644
--- a/system1-factory/web/static/js/tkfb-core.js
+++ b/system1-factory/web/static/js/tkfb-core.js
@@ -1,6 +1,8 @@
-/* ===== 서비스 워커 해제 ===== */
+/* ===== 서비스 워커 해제 (push-sw.js 제외) ===== */
 if ('serviceWorker' in navigator) {
-    navigator.serviceWorker.getRegistrations().then(function(regs) { regs.forEach(function(r) { r.unregister(); }); });
+    navigator.serviceWorker.getRegistrations().then(function(regs) { regs.forEach(function(r) {
+        if (!r.active || !r.active.scriptURL.includes('push-sw.js')) { r.unregister(); }
+    }); });
     if (typeof caches !== 'undefined') { caches.keys().then(function(ns) { ns.forEach(function(n) { caches.delete(n); }); }); }
 }
 
@@ -276,6 +278,16 @@ async function initAuth() {
     const overlay = document.getElementById('mobileOverlay');
     if (overlay) overlay.addEventListener('click', toggleMobileMenu);
 
+    // 알림 벨 로드
+    _loadNotificationBell();
+
     setTimeout(() => document.querySelector('.fade-in')?.classList.add('visible'), 50);
     return true;
 }
+
+/* ===== 알림 벨 ===== */
+function _loadNotificationBell() {
+    const s = document.createElement('script');
+    s.src = (location.hostname.includes('technicalkorea.net') ? 'https://tkfb.technicalkorea.net' : location.protocol + '//' + location.hostname + ':30000') + '/shared/notification-bell.js?v=1';
+    document.head.appendChild(s);
+}
diff --git a/system2-report/api/controllers/workIssueController.js b/system2-report/api/controllers/workIssueController.js
index 928a15d..18e4061 100644
--- a/system2-report/api/controllers/workIssueController.js
+++ b/system2-report/api/controllers/workIssueController.js
@@ -5,6 +5,7 @@
 const workIssueModel = require('../models/workIssueModel');
 const imageUploadService = require('../services/imageUploadService');
 const mProjectService = require('../services/mProjectService');
+const notify = require('../utils/notifyHelper');
 
 // ==================== 신고 카테고리 관리 ====================
 
@@ -191,6 +192,17 @@ exports.createReport = async (req, res) => {
 
     const reportId = await workIssueModel.createReport(reportData);
 
+    // 알림: 신고 접수
+    notify.send({
+      type: 'safety',
+      title: '신고 접수',
+      message: `${catInfo ? catInfo.category_name : '문제'} 신고가 접수되었습니다.`,
+      link_url: '/pages/safety-report-list.html',
+      reference_type: 'work_issue_reports',
+      reference_id: reportId,
+      created_by: req.user.id || req.user.user_id
+    });
+
     res.status(201).json({
       success: true,
       message: '문제 신고가 등록되었습니다.',
@@ -398,6 +410,18 @@ exports.receiveReport = async (req, res) => {
   try {
     const { id } = req.params;
     await workIssueModel.receiveReport(id, req.user.user_id);
+
+    // 알림: 신고 상태 변경 → 접수됨
+    notify.send({
+      type: 'safety',
+      title: '신고 접수 확인',
+      message: '신고가 접수되어 처리가 시작됩니다.',
+      link_url: '/pages/safety-report-list.html',
+      reference_type: 'work_issue_reports',
+      reference_id: parseInt(id),
+      created_by: req.user.user_id
+    });
+
     res.json({ success: true, message: '신고가 접수되었습니다.' });
   } catch (err) {
     console.error('신고 접수 실패:', err);
@@ -442,6 +466,18 @@ exports.completeReport = async (req, res) => {
     if (resolution_photos[1]) resolution_photo_path2 = await imageUploadService.saveBase64Image(resolution_photos[1], 'resolution');
 
     await workIssueModel.completeReport(id, { resolution_notes, resolution_photo_path1, resolution_photo_path2, resolved_by: req.user.user_id });
+
+    // 알림: 신고 처리 완료
+    notify.send({
+      type: 'safety',
+      title: '신고 처리 완료',
+      message: '신고 처리가 완료되었습니다.',
+      link_url: '/pages/safety-report-list.html',
+      reference_type: 'work_issue_reports',
+      reference_id: parseInt(id),
+      created_by: req.user.user_id
+    });
+
     res.json({ success: true, message: '처리가 완료되었습니다.' });
   } catch (err) {
     console.error('처리 완료 실패:', err);
diff --git a/system2-report/api/utils/notifyHelper.js b/system2-report/api/utils/notifyHelper.js
new file mode 100644
index 0000000..503e16f
--- /dev/null
+++ b/system2-report/api/utils/notifyHelper.js
@@ -0,0 +1,63 @@
+// utils/notifyHelper.js — 공용 알림 헬퍼
+// system1-factory의 내부 알림 API를 통해 DB 저장 + Push 전송
+const http = require('http');
+
+const NOTIFY_URL = 'http://system1-api:3005/api/notifications/internal';
+const SERVICE_KEY = process.env.INTERNAL_SERVICE_KEY || '';
+
+const notifyHelper = {
+  /**
+   * 알림 전송
+   * @param {Object} opts
+   * @param {string} opts.type - 알림 유형 (safety, maintenance, repair, system)
+   * @param {string} opts.title - 알림 제목
+   * @param {string} [opts.message] - 알림 내용
+   * @param {string} [opts.link_url] - 클릭 시 이동 URL
+   * @param {string} [opts.reference_type] - 연관 테이블명
+   * @param {number} [opts.reference_id] - 연관 레코드 ID
+   * @param {number} [opts.created_by] - 생성자 user_id
+   */
+  async send(opts) {
+    try {
+      const body = JSON.stringify(opts);
+      const url = new URL(NOTIFY_URL);
+
+      return new Promise((resolve) => {
+        const req = http.request({
+          hostname: url.hostname,
+          port: url.port,
+          path: url.pathname,
+          method: 'POST',
+          headers: {
+            'Content-Type': 'application/json',
+            'X-Internal-Service-Key': SERVICE_KEY,
+            'Content-Length': Buffer.byteLength(body)
+          },
+          timeout: 5000
+        }, (res) => {
+          res.resume(); // drain
+          resolve(true);
+        });
+
+        req.on('error', (err) => {
+          console.error('[notifyHelper] 알림 전송 실패:', err.message);
+          resolve(false);
+        });
+
+        req.on('timeout', () => {
+          req.destroy();
+          console.error('[notifyHelper] 알림 전송 타임아웃');
+          resolve(false);
+        });
+
+        req.write(body);
+        req.end();
+      });
+    } catch (err) {
+      console.error('[notifyHelper] 알림 전송 오류:', err.message);
+      return false;
+    }
+  }
+};
+
+module.exports = notifyHelper;
diff --git a/system2-report/web/js/api-base.js b/system2-report/web/js/api-base.js
index 17a1f84..1175244 100644
--- a/system2-report/web/js/api-base.js
+++ b/system2-report/web/js/api-base.js
@@ -1,10 +1,14 @@
 // /js/api-base.js
 // API 기본 설정 및 보안 유틸리티 - System 2 (신고 시스템)
 
-// 서비스 워커 해제 (캐시 간섭으로 인한 인증 루프 방지)
+// 서비스 워커 해제 (push-sw.js 제외)
 if ('serviceWorker' in navigator) {
   navigator.serviceWorker.getRegistrations().then(function(registrations) {
-    registrations.forEach(function(registration) { registration.unregister(); });
+    registrations.forEach(function(registration) {
+      if (!registration.active || !registration.active.scriptURL.includes('push-sw.js')) {
+        registration.unregister();
+      }
+    });
   });
   if (typeof caches !== 'undefined') {
     caches.keys().then(function(names) {
@@ -145,5 +149,13 @@ if ('serviceWorker' in navigator) {
     return response.json();
   };
 
+  // 알림 벨 로드
+  window._loadNotificationBell = function() {
+    var h = window.location.hostname;
+    var s = document.createElement('script');
+    s.src = (h.includes('technicalkorea.net') ? 'https://tkfb.technicalkorea.net' : window.location.protocol + '//' + h + ':30000') + '/shared/notification-bell.js?v=1';
+    document.head.appendChild(s);
+  };
+
   console.log('[System2] API 설정 완료:', window.API_BASE_URL);
 })();
diff --git a/system2-report/web/js/app-init.js b/system2-report/web/js/app-init.js
index 765cc53..51a39f4 100644
--- a/system2-report/web/js/app-init.js
+++ b/system2-report/web/js/app-init.js
@@ -90,6 +90,9 @@
     var token = window.getSSOToken ? window.getSSOToken() : null;
     if (token && !localStorage.getItem('sso_token')) localStorage.setItem('sso_token', token);
     console.log('[System2] 인증 확인:', currentUser.username);
+
+    // 알림 벨 로드
+    if (window._loadNotificationBell) window._loadNotificationBell();
   }
 
   // DOMContentLoaded 시 실행
diff --git a/system2-report/web/pages/safety/chat-report.html b/system2-report/web/pages/safety/chat-report.html
index 1da9c3b..5fc484c 100644
--- a/system2-report/web/pages/safety/chat-report.html
+++ b/system2-report/web/pages/safety/chat-report.html
@@ -6,8 +6,8 @@
     <title>AI 신고 도우미 | (주)테크니컬코리아</title>
     <link rel="icon" type="image/png" href="/img/favicon.png">
     <link rel="stylesheet" href="/css/chat-report.css?v=3">
-    <script src="/js/api-base.js?v=20260309"></script>
-    <script src="/js/app-init.js?v=20260309" defer></script>
+    <script src="/js/api-base.js?v=20260313"></script>
+    <script src="/js/app-init.js?v=20260313" defer></script>
 </head>
 <body>
     <!-- Header -->
diff --git a/system2-report/web/pages/safety/issue-detail.html b/system2-report/web/pages/safety/issue-detail.html
index 2861fe0..2a73603 100644
--- a/system2-report/web/pages/safety/issue-detail.html
+++ b/system2-report/web/pages/safety/issue-detail.html
@@ -8,8 +8,8 @@
     <link rel="stylesheet" href="/css/common.css?v=2">
     <link rel="stylesheet" href="/css/project-management.css?v=3">
     <link rel="icon" type="image/png" href="/img/favicon.png">
-    <script src="/js/api-base.js?v=20260309"></script>
-    <script src="/js/app-init.js?v=20260309" defer></script>
+    <script src="/js/api-base.js?v=20260313"></script>
+    <script src="/js/app-init.js?v=20260313" defer></script>
     <script src="https://instant.page/5.2.0" type="module"></script>
     <style>
         /* 상태 배지 */
diff --git a/system2-report/web/pages/safety/issue-report.html b/system2-report/web/pages/safety/issue-report.html
index 5422aed..cec2afc 100644
--- a/system2-report/web/pages/safety/issue-report.html
+++ b/system2-report/web/pages/safety/issue-report.html
@@ -5,8 +5,8 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
     <title>신고 등록 | (주)테크니컬코리아</title>
     <link rel="icon" type="image/png" href="/img/favicon.png">
-    <script src="/js/api-base.js?v=20260309"></script>
-    <script src="/js/app-init.js?v=20260309" defer></script>
+    <script src="/js/api-base.js?v=20260313"></script>
+    <script src="/js/app-init.js?v=20260313" defer></script>
     <style>
         * { box-sizing: border-box; }
         body {
diff --git a/system2-report/web/pages/safety/report-status.html b/system2-report/web/pages/safety/report-status.html
index fc04b16..487b71c 100644
--- a/system2-report/web/pages/safety/report-status.html
+++ b/system2-report/web/pages/safety/report-status.html
@@ -8,8 +8,8 @@
     <link rel="stylesheet" href="/css/common.css?v=2">
     <link rel="stylesheet" href="/css/project-management.css?v=3">
     <link rel="icon" type="image/png" href="/img/favicon.png">
-    <script src="/js/api-base.js?v=20260309"></script>
-    <script src="/js/app-init.js?v=20260309" defer></script>
+    <script src="/js/api-base.js?v=20260313"></script>
+    <script src="/js/app-init.js?v=20260313" defer></script>
     <script src="https://instant.page/5.2.0" type="module"></script>
     <style>
         /* 통계 카드 */
diff --git a/system2-report/web/push-sw.js b/system2-report/web/push-sw.js
new file mode 100644
index 0000000..930acbc
--- /dev/null
+++ b/system2-report/web/push-sw.js
@@ -0,0 +1,41 @@
+// Push Notification Service Worker
+// 캐싱 없음 — Push 수신 전용
+
+self.addEventListener('push', function(event) {
+  var data = { title: '알림', body: '새 알림이 있습니다.', url: '/' };
+  if (event.data) {
+    try { data = Object.assign(data, event.data.json()); } catch(e) {}
+  }
+  event.waitUntil(
+    self.registration.showNotification(data.title, {
+      body: data.body,
+      icon: '/static/img/icon-192.png',
+      badge: '/static/img/badge-72.png',
+      data: { url: data.url || '/' },
+      tag: 'tk-notification-' + Date.now(),
+      renotify: true
+    })
+  );
+  // 메인 페이지에 뱃지 갱신 신호 전송
+  self.clients.matchAll({ type: 'window' }).then(function(clients) {
+    clients.forEach(function(client) {
+      client.postMessage({ type: 'NOTIFICATION_RECEIVED' });
+    });
+  });
+});
+
+self.addEventListener('notificationclick', function(event) {
+  event.notification.close();
+  var url = (event.notification.data && event.notification.data.url) || '/';
+  event.waitUntil(
+    self.clients.matchAll({ type: 'window' }).then(function(clients) {
+      for (var i = 0; i < clients.length; i++) {
+        if (clients[i].url.includes(self.location.origin)) {
+          clients[i].navigate(url);
+          return clients[i].focus();
+        }
+      }
+      return self.clients.openWindow(url);
+    })
+  );
+});
diff --git a/system3-nonconformance/web/ai-assistant.html b/system3-nonconformance/web/ai-assistant.html
index b1801a1..387ca2d 100644
--- a/system3-nonconformance/web/ai-assistant.html
+++ b/system3-nonconformance/web/ai-assistant.html
@@ -276,7 +276,7 @@
     <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/core/auth-manager.js?v=20260313"></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>
diff --git a/system3-nonconformance/web/app.html b/system3-nonconformance/web/app.html
index 3c82d63..3d079b5 100644
--- a/system3-nonconformance/web/app.html
+++ b/system3-nonconformance/web/app.html
@@ -301,6 +301,6 @@
     <script src="/static/js/utils/date-utils.js"></script>
     <script src="/static/js/utils/image-utils.js"></script>
     <script src="/static/js/core/permissions.js"></script>
-    <script src="/static/js/app.js"></script>
+    <script src="/static/js/app.js?v=20260313"></script>
 </body>
 </html>
diff --git a/system3-nonconformance/web/issue-view.html b/system3-nonconformance/web/issue-view.html
index 7c5a51f..726747c 100644
--- a/system3-nonconformance/web/issue-view.html
+++ b/system3-nonconformance/web/issue-view.html
@@ -111,7 +111,7 @@
     <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/core/auth-manager.js?v=20260313"></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>
diff --git a/system3-nonconformance/web/issues-archive.html b/system3-nonconformance/web/issues-archive.html
index 463245a..daf6c5f 100644
--- a/system3-nonconformance/web/issues-archive.html
+++ b/system3-nonconformance/web/issues-archive.html
@@ -201,7 +201,7 @@
     <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/core/auth-manager.js?v=20260313"></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>
diff --git a/system3-nonconformance/web/issues-dashboard.html b/system3-nonconformance/web/issues-dashboard.html
index 680dfa5..6019494 100644
--- a/system3-nonconformance/web/issues-dashboard.html
+++ b/system3-nonconformance/web/issues-dashboard.html
@@ -554,7 +554,7 @@
     <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/core/auth-manager.js?v=20260313"></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>
diff --git a/system3-nonconformance/web/issues-inbox.html b/system3-nonconformance/web/issues-inbox.html
index d54d2d6..31de0ea 100644
--- a/system3-nonconformance/web/issues-inbox.html
+++ b/system3-nonconformance/web/issues-inbox.html
@@ -373,7 +373,7 @@
     <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/core/auth-manager.js?v=20260313"></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>
diff --git a/system3-nonconformance/web/issues-management.html b/system3-nonconformance/web/issues-management.html
index 1dbc1f3..e3e0f8d 100644
--- a/system3-nonconformance/web/issues-management.html
+++ b/system3-nonconformance/web/issues-management.html
@@ -342,7 +342,7 @@
     <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/core/auth-manager.js?v=20260313"></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>
diff --git a/system3-nonconformance/web/m/dashboard.html b/system3-nonconformance/web/m/dashboard.html
index 55780c4..845a5e1 100644
--- a/system3-nonconformance/web/m/dashboard.html
+++ b/system3-nonconformance/web/m/dashboard.html
@@ -186,7 +186,7 @@
 
     <!-- 스크립트 -->
     <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/auth-manager.js?v=20260313"></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=20260309"></script>
diff --git a/system3-nonconformance/web/m/inbox.html b/system3-nonconformance/web/m/inbox.html
index 240abaf..62ae6c4 100644
--- a/system3-nonconformance/web/m/inbox.html
+++ b/system3-nonconformance/web/m/inbox.html
@@ -194,7 +194,7 @@
 
     <!-- 스크립트 -->
     <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/auth-manager.js?v=20260313"></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=20260309"></script>
diff --git a/system3-nonconformance/web/m/management.html b/system3-nonconformance/web/m/management.html
index e860344..6731c38 100644
--- a/system3-nonconformance/web/m/management.html
+++ b/system3-nonconformance/web/m/management.html
@@ -170,7 +170,7 @@
 
     <!-- 스크립트 -->
     <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/auth-manager.js?v=20260313"></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=20260309"></script>
diff --git a/system3-nonconformance/web/push-sw.js b/system3-nonconformance/web/push-sw.js
new file mode 100644
index 0000000..930acbc
--- /dev/null
+++ b/system3-nonconformance/web/push-sw.js
@@ -0,0 +1,41 @@
+// Push Notification Service Worker
+// 캐싱 없음 — Push 수신 전용
+
+self.addEventListener('push', function(event) {
+  var data = { title: '알림', body: '새 알림이 있습니다.', url: '/' };
+  if (event.data) {
+    try { data = Object.assign(data, event.data.json()); } catch(e) {}
+  }
+  event.waitUntil(
+    self.registration.showNotification(data.title, {
+      body: data.body,
+      icon: '/static/img/icon-192.png',
+      badge: '/static/img/badge-72.png',
+      data: { url: data.url || '/' },
+      tag: 'tk-notification-' + Date.now(),
+      renotify: true
+    })
+  );
+  // 메인 페이지에 뱃지 갱신 신호 전송
+  self.clients.matchAll({ type: 'window' }).then(function(clients) {
+    clients.forEach(function(client) {
+      client.postMessage({ type: 'NOTIFICATION_RECEIVED' });
+    });
+  });
+});
+
+self.addEventListener('notificationclick', function(event) {
+  event.notification.close();
+  var url = (event.notification.data && event.notification.data.url) || '/';
+  event.waitUntil(
+    self.clients.matchAll({ type: 'window' }).then(function(clients) {
+      for (var i = 0; i < clients.length; i++) {
+        if (clients[i].url.includes(self.location.origin)) {
+          clients[i].navigate(url);
+          return clients[i].focus();
+        }
+      }
+      return self.clients.openWindow(url);
+    })
+  );
+});
diff --git a/system3-nonconformance/web/reports-daily.html b/system3-nonconformance/web/reports-daily.html
index 3940419..4c11236 100644
--- a/system3-nonconformance/web/reports-daily.html
+++ b/system3-nonconformance/web/reports-daily.html
@@ -185,7 +185,7 @@
     <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 src="/static/js/core/auth-manager.js?v=20260313"></script>
 
     <script>
         let projects = [];
diff --git a/system3-nonconformance/web/reports-monthly.html b/system3-nonconformance/web/reports-monthly.html
index 87b8813..6d61c20 100644
--- a/system3-nonconformance/web/reports-monthly.html
+++ b/system3-nonconformance/web/reports-monthly.html
@@ -72,7 +72,7 @@
     <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 src="/static/js/core/auth-manager.js?v=20260313"></script>
 
     <script>
         // 페이지 초기화
diff --git a/system3-nonconformance/web/reports-weekly.html b/system3-nonconformance/web/reports-weekly.html
index 25acb3f..33e74c4 100644
--- a/system3-nonconformance/web/reports-weekly.html
+++ b/system3-nonconformance/web/reports-weekly.html
@@ -71,7 +71,7 @@
     <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 src="/static/js/core/auth-manager.js?v=20260313"></script>
 
     <script>
         // 페이지 초기화
diff --git a/system3-nonconformance/web/reports.html b/system3-nonconformance/web/reports.html
index be15518..bd46686 100644
--- a/system3-nonconformance/web/reports.html
+++ b/system3-nonconformance/web/reports.html
@@ -173,7 +173,7 @@
     <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 src="/static/js/core/auth-manager.js?v=20260313"></script>
 
     <script>
         // 페이지 초기화
diff --git a/system3-nonconformance/web/static/js/app.js b/system3-nonconformance/web/static/js/app.js
index bc301d6..c201ff6 100644
--- a/system3-nonconformance/web/static/js/app.js
+++ b/system3-nonconformance/web/static/js/app.js
@@ -33,6 +33,9 @@ class App {
             // 라우터 초기화
             this.initializeRouter();
             
+            // 알림 벨 로드
+            this._loadNotificationBell();
+
             // 대시보드 데이터 로드
             await this.loadDashboardData();
             
@@ -392,6 +395,16 @@ class App {
         }
     }
 
+    /**
+     * 알림 벨 로드
+     */
+    _loadNotificationBell() {
+        var h = window.location.hostname;
+        var s = document.createElement('script');
+        s.src = (h.includes('technicalkorea.net') ? 'https://tkfb.technicalkorea.net' : window.location.protocol + '//' + h + ':30000') + '/shared/notification-bell.js?v=1';
+        document.head.appendChild(s);
+    }
+
     /**
      * 로딩 표시
      */
diff --git a/system3-nonconformance/web/static/js/core/auth-manager.js b/system3-nonconformance/web/static/js/core/auth-manager.js
index 4762bc1..6616ec9 100644
--- a/system3-nonconformance/web/static/js/core/auth-manager.js
+++ b/system3-nonconformance/web/static/js/core/auth-manager.js
@@ -1,7 +1,11 @@
-// 서비스 워커 해제 (캐시 간섭으로 인한 인증 루프 방지)
+// 서비스 워커 해제 (push-sw.js 제외)
 if ('serviceWorker' in navigator) {
     navigator.serviceWorker.getRegistrations().then(function(registrations) {
-        registrations.forEach(function(registration) { registration.unregister(); });
+        registrations.forEach(function(registration) {
+            if (!registration.active || !registration.active.scriptURL.includes('push-sw.js')) {
+                registration.unregister();
+            }
+        });
     });
     if (typeof caches !== 'undefined') {
         caches.keys().then(function(names) {
diff --git a/system3-nonconformance/web/static/js/core/page-preloader.js b/system3-nonconformance/web/static/js/core/page-preloader.js
index 15c40c0..a5b64ef 100644
--- a/system3-nonconformance/web/static/js/core/page-preloader.js
+++ b/system3-nonconformance/web/static/js/core/page-preloader.js
@@ -281,7 +281,9 @@ class PagePreloader {
             try {
                 const registrations = await navigator.serviceWorker.getRegistrations();
                 for (const registration of registrations) {
-                    await registration.unregister();
+                    if (!registration.active || !registration.active.scriptURL.includes('push-sw.js')) {
+                        await registration.unregister();
+                    }
                 }
                 // 모든 캐시 삭제
                 const cacheNames = await caches.keys();
diff --git a/tkpurchase/api/controllers/dayLaborController.js b/tkpurchase/api/controllers/dayLaborController.js
index 0d18530..f1593c3 100644
--- a/tkpurchase/api/controllers/dayLaborController.js
+++ b/tkpurchase/api/controllers/dayLaborController.js
@@ -1,5 +1,6 @@
 const dayLaborModel = require('../models/dayLaborModel');
 const { getPool } = require('../models/partnerModel');
+const notify = require('../utils/notifyHelper');
 
 // 일용직 요청 목록
 async function list(req, res) {
@@ -47,6 +48,18 @@ async function create(req, res) {
       requester_id: req.user.user_id || req.user.id
     };
     const row = await dayLaborModel.create(data);
+
+    // 알림: 일용공 신청
+    notify.send({
+      type: 'maintenance',
+      title: '일용공 신청',
+      message: `${work_date} ${worker_count}명 일용공 신청`,
+      link_url: '/daylabor.html',
+      reference_type: 'day_labor_requests',
+      reference_id: row.id || row.request_id,
+      created_by: data.requester_id
+    });
+
     res.status(201).json({ success: true, data: row });
   } catch (err) {
     console.error('DayLabor create error:', err);
diff --git a/tkpurchase/api/controllers/workReportController.js b/tkpurchase/api/controllers/workReportController.js
index 22b4dba..87ad4f9 100644
--- a/tkpurchase/api/controllers/workReportController.js
+++ b/tkpurchase/api/controllers/workReportController.js
@@ -1,6 +1,7 @@
 const workReportModel = require('../models/workReportModel');
 const checkinModel = require('../models/checkinModel');
 const ExcelJS = require('exceljs');
+const notify = require('../utils/notifyHelper');
 
 // 작업보고 목록
 async function list(req, res) {
@@ -90,6 +91,18 @@ async function create(req, res) {
       workers: workers || []
     };
     const row = await workReportModel.create(data);
+
+    // 알림: 작업 보고서 제출
+    notify.send({
+      type: 'maintenance',
+      title: '작업 보고서 제출',
+      message: `${report_date} 작업 보고서가 제출되었습니다.`,
+      link_url: '/workreport.html',
+      reference_type: 'work_reports',
+      reference_id: row.id || row.report_id,
+      created_by: data.reporter_id
+    });
+
     res.status(201).json({ success: true, data: row });
   } catch (err) {
     console.error('WorkReport create error:', err);
diff --git a/tkpurchase/api/utils/notifyHelper.js b/tkpurchase/api/utils/notifyHelper.js
new file mode 100644
index 0000000..503e16f
--- /dev/null
+++ b/tkpurchase/api/utils/notifyHelper.js
@@ -0,0 +1,63 @@
+// utils/notifyHelper.js — 공용 알림 헬퍼
+// system1-factory의 내부 알림 API를 통해 DB 저장 + Push 전송
+const http = require('http');
+
+const NOTIFY_URL = 'http://system1-api:3005/api/notifications/internal';
+const SERVICE_KEY = process.env.INTERNAL_SERVICE_KEY || '';
+
+const notifyHelper = {
+  /**
+   * 알림 전송
+   * @param {Object} opts
+   * @param {string} opts.type - 알림 유형 (safety, maintenance, repair, system)
+   * @param {string} opts.title - 알림 제목
+   * @param {string} [opts.message] - 알림 내용
+   * @param {string} [opts.link_url] - 클릭 시 이동 URL
+   * @param {string} [opts.reference_type] - 연관 테이블명
+   * @param {number} [opts.reference_id] - 연관 레코드 ID
+   * @param {number} [opts.created_by] - 생성자 user_id
+   */
+  async send(opts) {
+    try {
+      const body = JSON.stringify(opts);
+      const url = new URL(NOTIFY_URL);
+
+      return new Promise((resolve) => {
+        const req = http.request({
+          hostname: url.hostname,
+          port: url.port,
+          path: url.pathname,
+          method: 'POST',
+          headers: {
+            'Content-Type': 'application/json',
+            'X-Internal-Service-Key': SERVICE_KEY,
+            'Content-Length': Buffer.byteLength(body)
+          },
+          timeout: 5000
+        }, (res) => {
+          res.resume(); // drain
+          resolve(true);
+        });
+
+        req.on('error', (err) => {
+          console.error('[notifyHelper] 알림 전송 실패:', err.message);
+          resolve(false);
+        });
+
+        req.on('timeout', () => {
+          req.destroy();
+          console.error('[notifyHelper] 알림 전송 타임아웃');
+          resolve(false);
+        });
+
+        req.write(body);
+        req.end();
+      });
+    } catch (err) {
+      console.error('[notifyHelper] 알림 전송 오류:', err.message);
+      return false;
+    }
+  }
+};
+
+module.exports = notifyHelper;
diff --git a/tkpurchase/web/accounts.html b/tkpurchase/web/accounts.html
index 55261e9..41800fb 100644
--- a/tkpurchase/web/accounts.html
+++ b/tkpurchase/web/accounts.html
@@ -130,7 +130,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=20260312"></script>
+    <script src="/static/js/tkpurchase-core.js?v=20260313b"></script>
     <script src="/static/js/tkpurchase-accounts.js?v=20260312"></script>
     <script>initAccountsPage();</script>
 </body>
diff --git a/tkpurchase/web/daylabor.html b/tkpurchase/web/daylabor.html
index 923af69..dcd7efd 100644
--- a/tkpurchase/web/daylabor.html
+++ b/tkpurchase/web/daylabor.html
@@ -144,7 +144,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=20260312"></script>
+    <script src="/static/js/tkpurchase-core.js?v=20260313b"></script>
     <script src="/static/js/tkpurchase-daylabor.js?v=20260312"></script>
     <script>initDayLaborPage();</script>
 </body>
diff --git a/tkpurchase/web/index.html b/tkpurchase/web/index.html
index c83385d..1c289a6 100644
--- a/tkpurchase/web/index.html
+++ b/tkpurchase/web/index.html
@@ -85,7 +85,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=20260312"></script>
+    <script src="/static/js/tkpurchase-core.js?v=20260313b"></script>
     <script src="/static/js/tkpurchase-dashboard.js?v=20260312"></script>
     <script>initDashboard();</script>
 </body>
diff --git a/tkpurchase/web/partner-portal.html b/tkpurchase/web/partner-portal.html
index 23492a7..3cf1da9 100644
--- a/tkpurchase/web/partner-portal.html
+++ b/tkpurchase/web/partner-portal.html
@@ -81,7 +81,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=20260313a"></script>
+    <script src="/static/js/tkpurchase-core.js?v=20260313b"></script>
     <script src="/static/js/tkpurchase-partner-portal.js?v=20260313a"></script>
     <script>initPartnerPortal();</script>
 </body>
diff --git a/tkpurchase/web/partner.html b/tkpurchase/web/partner.html
index 8a4c149..c6604b1 100644
--- a/tkpurchase/web/partner.html
+++ b/tkpurchase/web/partner.html
@@ -291,7 +291,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=20260312"></script>
+    <script src="/static/js/tkpurchase-core.js?v=20260313b"></script>
     <script src="/static/js/tkpurchase-partner.js?v=20260312"></script>
     <script>initPartnerPage();</script>
 </body>
diff --git a/tkpurchase/web/push-sw.js b/tkpurchase/web/push-sw.js
new file mode 100644
index 0000000..930acbc
--- /dev/null
+++ b/tkpurchase/web/push-sw.js
@@ -0,0 +1,41 @@
+// Push Notification Service Worker
+// 캐싱 없음 — Push 수신 전용
+
+self.addEventListener('push', function(event) {
+  var data = { title: '알림', body: '새 알림이 있습니다.', url: '/' };
+  if (event.data) {
+    try { data = Object.assign(data, event.data.json()); } catch(e) {}
+  }
+  event.waitUntil(
+    self.registration.showNotification(data.title, {
+      body: data.body,
+      icon: '/static/img/icon-192.png',
+      badge: '/static/img/badge-72.png',
+      data: { url: data.url || '/' },
+      tag: 'tk-notification-' + Date.now(),
+      renotify: true
+    })
+  );
+  // 메인 페이지에 뱃지 갱신 신호 전송
+  self.clients.matchAll({ type: 'window' }).then(function(clients) {
+    clients.forEach(function(client) {
+      client.postMessage({ type: 'NOTIFICATION_RECEIVED' });
+    });
+  });
+});
+
+self.addEventListener('notificationclick', function(event) {
+  event.notification.close();
+  var url = (event.notification.data && event.notification.data.url) || '/';
+  event.waitUntil(
+    self.clients.matchAll({ type: 'window' }).then(function(clients) {
+      for (var i = 0; i < clients.length; i++) {
+        if (clients[i].url.includes(self.location.origin)) {
+          clients[i].navigate(url);
+          return clients[i].focus();
+        }
+      }
+      return self.clients.openWindow(url);
+    })
+  );
+});
diff --git a/tkpurchase/web/schedule.html b/tkpurchase/web/schedule.html
index 2dce85e..bd605fc 100644
--- a/tkpurchase/web/schedule.html
+++ b/tkpurchase/web/schedule.html
@@ -271,7 +271,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=20260313a"></script>
+    <script src="/static/js/tkpurchase-core.js?v=20260313b"></script>
     <script src="/static/js/tkpurchase-schedule.js?v=20260313a"></script>
     <script>initSchedulePage();</script>
 </body>
diff --git a/tkpurchase/web/static/js/tkpurchase-core.js b/tkpurchase/web/static/js/tkpurchase-core.js
index bbc7387..e6d4f1e 100644
--- a/tkpurchase/web/static/js/tkpurchase-core.js
+++ b/tkpurchase/web/static/js/tkpurchase-core.js
@@ -1,6 +1,8 @@
-/* ===== 서비스 워커 해제 ===== */
+/* ===== 서비스 워커 해제 (push-sw.js 제외) ===== */
 if ('serviceWorker' in navigator) {
-    navigator.serviceWorker.getRegistrations().then(function(regs) { regs.forEach(function(r) { r.unregister(); }); });
+    navigator.serviceWorker.getRegistrations().then(function(regs) { regs.forEach(function(r) {
+        if (!r.active || !r.active.scriptURL.includes('push-sw.js')) { r.unregister(); }
+    }); });
     if (typeof caches !== 'undefined') { caches.keys().then(function(ns) { ns.forEach(function(n) { caches.delete(n); }); }); }
 }
 
@@ -143,6 +145,17 @@ function initAuth() {
     if (nameEl) nameEl.textContent = dn;
     if (avatarEl) avatarEl.textContent = dn.charAt(0).toUpperCase();
     renderNavbar();
+
+    // 알림 벨 로드
+    _loadNotificationBell();
+
     setTimeout(() => document.querySelector('.fade-in')?.classList.add('visible'), 50);
     return true;
 }
+
+/* ===== 알림 벨 ===== */
+function _loadNotificationBell() {
+    const s = document.createElement('script');
+    s.src = (location.hostname.includes('technicalkorea.net') ? 'https://tkfb.technicalkorea.net' : location.protocol + '//' + location.hostname + ':30000') + '/shared/notification-bell.js?v=1';
+    document.head.appendChild(s);
+}
diff --git a/tkpurchase/web/workreport.html b/tkpurchase/web/workreport.html
index 68a4131..b3dfcee 100644
--- a/tkpurchase/web/workreport.html
+++ b/tkpurchase/web/workreport.html
@@ -109,7 +109,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=20260312"></script>
+    <script src="/static/js/tkpurchase-core.js?v=20260313b"></script>
     <script src="/static/js/tkpurchase-workreport.js?v=20260312"></script>
     <script>initWorkReportPage();</script>
 </body>
diff --git a/tksafety/api/controllers/visitRequestController.js b/tksafety/api/controllers/visitRequestController.js
index 91f8ce3..fc2fd3a 100644
--- a/tksafety/api/controllers/visitRequestController.js
+++ b/tksafety/api/controllers/visitRequestController.js
@@ -1,4 +1,5 @@
 const visitRequestModel = require('../models/visitRequestModel');
+const notify = require('../utils/notifyHelper');
 
 // ==================== 출입 신청 관리 ====================
 
@@ -104,6 +105,21 @@ exports.approveVisitRequest = async (req, res) => {
     if (result.affectedRows === 0) {
       return res.status(404).json({ success: false, message: '출입 신청을 찾을 수 없습니다.' });
     }
+
+    // 알림: 신청자에게 승인 알림
+    const request = await visitRequestModel.getVisitRequestById(req.params.id).catch(() => null);
+    if (request) {
+      notify.send({
+        type: 'safety',
+        title: '출입 신청 승인',
+        message: `${request.visitor_company || ''} 출입 신청이 승인되었습니다.`,
+        link_url: '/visit-request.html',
+        reference_type: 'visit_requests',
+        reference_id: parseInt(req.params.id),
+        created_by: req.user.user_id
+      });
+    }
+
     res.json({ success: true, message: '출입 신청이 승인되었습니다.' });
   } catch (err) {
     console.error('출입 신청 승인 오류:', err);
@@ -121,6 +137,21 @@ exports.rejectVisitRequest = async (req, res) => {
     if (result.affectedRows === 0) {
       return res.status(404).json({ success: false, message: '출입 신청을 찾을 수 없습니다.' });
     }
+
+    // 알림: 신청자에게 반려 알림
+    const request = await visitRequestModel.getVisitRequestById(req.params.id).catch(() => null);
+    if (request) {
+      notify.send({
+        type: 'safety',
+        title: '출입 신청 반려',
+        message: `${request.visitor_company || ''} 출입 신청이 반려되었습니다. 사유: ${rejectionData.rejection_reason}`,
+        link_url: '/visit-request.html',
+        reference_type: 'visit_requests',
+        reference_id: parseInt(req.params.id),
+        created_by: req.user.user_id
+      });
+    }
+
     res.json({ success: true, message: '출입 신청이 반려되었습니다.' });
   } catch (err) {
     console.error('출입 신청 반려 오류:', err);
@@ -273,6 +304,17 @@ exports.completeTraining = async (req, res) => {
       console.error('출입 신청 상태 업데이트 오류:', statusErr);
     }
 
+    // 알림: 안전교육 완료
+    notify.send({
+      type: 'safety',
+      title: '안전교육 완료',
+      message: '안전교육이 완료되었습니다.',
+      link_url: '/training.html',
+      reference_type: 'training_records',
+      reference_id: parseInt(trainingId),
+      created_by: req.user.user_id
+    });
+
     res.json({ success: true, message: '안전교육이 완료되었습니다.' });
   } catch (err) {
     console.error('안전교육 완료 처리 오류:', err);
@@ -326,6 +368,21 @@ exports.checkIn = async (req, res) => {
     if (result.error) {
       return res.status(result.status).json({ success: false, message: result.error });
     }
+
+    // 알림: 방문자 체크인
+    const request = await visitRequestModel.getVisitRequestById(req.params.id).catch(() => null);
+    if (request) {
+      notify.send({
+        type: 'safety',
+        title: '방문자 체크인',
+        message: `${request.visitor_company || ''} ${request.visitor_name || ''} 체크인`,
+        link_url: '/visit-management.html',
+        reference_type: 'visit_requests',
+        reference_id: parseInt(req.params.id),
+        created_by: req.user.user_id
+      });
+    }
+
     res.json({ success: true, message: '체크인되었습니다.' });
   } catch (err) {
     console.error('체크인 오류:', err);
diff --git a/tksafety/api/utils/notifyHelper.js b/tksafety/api/utils/notifyHelper.js
new file mode 100644
index 0000000..503e16f
--- /dev/null
+++ b/tksafety/api/utils/notifyHelper.js
@@ -0,0 +1,63 @@
+// utils/notifyHelper.js — 공용 알림 헬퍼
+// system1-factory의 내부 알림 API를 통해 DB 저장 + Push 전송
+const http = require('http');
+
+const NOTIFY_URL = 'http://system1-api:3005/api/notifications/internal';
+const SERVICE_KEY = process.env.INTERNAL_SERVICE_KEY || '';
+
+const notifyHelper = {
+  /**
+   * 알림 전송
+   * @param {Object} opts
+   * @param {string} opts.type - 알림 유형 (safety, maintenance, repair, system)
+   * @param {string} opts.title - 알림 제목
+   * @param {string} [opts.message] - 알림 내용
+   * @param {string} [opts.link_url] - 클릭 시 이동 URL
+   * @param {string} [opts.reference_type] - 연관 테이블명
+   * @param {number} [opts.reference_id] - 연관 레코드 ID
+   * @param {number} [opts.created_by] - 생성자 user_id
+   */
+  async send(opts) {
+    try {
+      const body = JSON.stringify(opts);
+      const url = new URL(NOTIFY_URL);
+
+      return new Promise((resolve) => {
+        const req = http.request({
+          hostname: url.hostname,
+          port: url.port,
+          path: url.pathname,
+          method: 'POST',
+          headers: {
+            'Content-Type': 'application/json',
+            'X-Internal-Service-Key': SERVICE_KEY,
+            'Content-Length': Buffer.byteLength(body)
+          },
+          timeout: 5000
+        }, (res) => {
+          res.resume(); // drain
+          resolve(true);
+        });
+
+        req.on('error', (err) => {
+          console.error('[notifyHelper] 알림 전송 실패:', err.message);
+          resolve(false);
+        });
+
+        req.on('timeout', () => {
+          req.destroy();
+          console.error('[notifyHelper] 알림 전송 타임아웃');
+          resolve(false);
+        });
+
+        req.write(body);
+        req.end();
+      });
+    } catch (err) {
+      console.error('[notifyHelper] 알림 전송 오류:', err.message);
+      return false;
+    }
+  }
+};
+
+module.exports = notifyHelper;
diff --git a/tksafety/web/checklist.html b/tksafety/web/checklist.html
index 8a2a28d..2c29812 100644
--- a/tksafety/web/checklist.html
+++ b/tksafety/web/checklist.html
@@ -154,7 +154,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tksafety-core.js?v=2"></script>
+    <script src="/static/js/tksafety-core.js?v=3"></script>
     <script src="/static/js/tksafety-checklist.js"></script>
     <script>initChecklistPage();</script>
 </body>
diff --git a/tksafety/web/education.html b/tksafety/web/education.html
index 0107f77..134c0d4 100644
--- a/tksafety/web/education.html
+++ b/tksafety/web/education.html
@@ -187,7 +187,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tksafety-core.js?v=2"></script>
+    <script src="/static/js/tksafety-core.js?v=3"></script>
     <script src="/static/js/tksafety-education.js?v=20260313"></script>
     <script>initEducationPage();</script>
 </body>
diff --git a/tksafety/web/entry-dashboard.html b/tksafety/web/entry-dashboard.html
index 9182c94..2445a8b 100644
--- a/tksafety/web/entry-dashboard.html
+++ b/tksafety/web/entry-dashboard.html
@@ -103,7 +103,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tksafety-core.js?v=2"></script>
+    <script src="/static/js/tksafety-core.js?v=3"></script>
     <script src="/static/js/tksafety-entry-dashboard.js?v=1"></script>
     <script>initEntryDashboard();</script>
 </body>
diff --git a/tksafety/web/index.html b/tksafety/web/index.html
index 21b17d1..b26e75e 100644
--- a/tksafety/web/index.html
+++ b/tksafety/web/index.html
@@ -274,7 +274,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tksafety-core.js?v=2"></script>
+    <script src="/static/js/tksafety-core.js?v=3"></script>
     <script src="/static/js/tksafety-visit.js?v=20260313"></script>
     <script>initVisitPage();</script>
 </body>
diff --git a/tksafety/web/push-sw.js b/tksafety/web/push-sw.js
new file mode 100644
index 0000000..930acbc
--- /dev/null
+++ b/tksafety/web/push-sw.js
@@ -0,0 +1,41 @@
+// Push Notification Service Worker
+// 캐싱 없음 — Push 수신 전용
+
+self.addEventListener('push', function(event) {
+  var data = { title: '알림', body: '새 알림이 있습니다.', url: '/' };
+  if (event.data) {
+    try { data = Object.assign(data, event.data.json()); } catch(e) {}
+  }
+  event.waitUntil(
+    self.registration.showNotification(data.title, {
+      body: data.body,
+      icon: '/static/img/icon-192.png',
+      badge: '/static/img/badge-72.png',
+      data: { url: data.url || '/' },
+      tag: 'tk-notification-' + Date.now(),
+      renotify: true
+    })
+  );
+  // 메인 페이지에 뱃지 갱신 신호 전송
+  self.clients.matchAll({ type: 'window' }).then(function(clients) {
+    clients.forEach(function(client) {
+      client.postMessage({ type: 'NOTIFICATION_RECEIVED' });
+    });
+  });
+});
+
+self.addEventListener('notificationclick', function(event) {
+  event.notification.close();
+  var url = (event.notification.data && event.notification.data.url) || '/';
+  event.waitUntil(
+    self.clients.matchAll({ type: 'window' }).then(function(clients) {
+      for (var i = 0; i < clients.length; i++) {
+        if (clients[i].url.includes(self.location.origin)) {
+          clients[i].navigate(url);
+          return clients[i].focus();
+        }
+      }
+      return self.clients.openWindow(url);
+    })
+  );
+});
diff --git a/tksafety/web/static/js/tksafety-core.js b/tksafety/web/static/js/tksafety-core.js
index a623c4a..ca0982d 100644
--- a/tksafety/web/static/js/tksafety-core.js
+++ b/tksafety/web/static/js/tksafety-core.js
@@ -1,6 +1,8 @@
-/* ===== 서비스 워커 해제 ===== */
+/* ===== 서비스 워커 해제 (push-sw.js 제외) ===== */
 if ('serviceWorker' in navigator) {
-    navigator.serviceWorker.getRegistrations().then(function(regs) { regs.forEach(function(r) { r.unregister(); }); });
+    navigator.serviceWorker.getRegistrations().then(function(regs) { regs.forEach(function(r) {
+        if (!r.active || !r.active.scriptURL.includes('push-sw.js')) { r.unregister(); }
+    }); });
     if (typeof caches !== 'undefined') { caches.keys().then(function(ns) { ns.forEach(function(n) { caches.delete(n); }); }); }
 }
 
@@ -134,6 +136,17 @@ function initAuth() {
     if (nameEl) nameEl.textContent = dn;
     if (avatarEl) avatarEl.textContent = dn.charAt(0).toUpperCase();
     renderNavbar();
+
+    // 알림 벨 로드
+    _loadNotificationBell();
+
     setTimeout(() => document.querySelector('.fade-in')?.classList.add('visible'), 50);
     return true;
 }
+
+/* ===== 알림 벨 ===== */
+function _loadNotificationBell() {
+    const s = document.createElement('script');
+    s.src = (location.hostname.includes('technicalkorea.net') ? 'https://tkfb.technicalkorea.net' : location.protocol + '//' + location.hostname + ':30000') + '/shared/notification-bell.js?v=1';
+    document.head.appendChild(s);
+}
diff --git a/tksafety/web/training.html b/tksafety/web/training.html
index 244fd5a..6eab0e1 100644
--- a/tksafety/web/training.html
+++ b/tksafety/web/training.html
@@ -133,7 +133,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tksafety-core.js?v=2"></script>
+    <script src="/static/js/tksafety-core.js?v=3"></script>
     <script src="/static/js/tksafety-training.js"></script>
     <script>initTrainingPage();</script>
 </body>
diff --git a/tksafety/web/visit-management.html b/tksafety/web/visit-management.html
index 2b8b184..82a2b21 100644
--- a/tksafety/web/visit-management.html
+++ b/tksafety/web/visit-management.html
@@ -181,7 +181,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tksafety-core.js?v=2"></script>
+    <script src="/static/js/tksafety-core.js?v=3"></script>
     <script src="/static/js/tksafety-visit-management.js?v=2"></script>
     <script>initVisitManagementPage();</script>
 </body>
diff --git a/tksafety/web/visit-request.html b/tksafety/web/visit-request.html
index e6628b2..831ece7 100644
--- a/tksafety/web/visit-request.html
+++ b/tksafety/web/visit-request.html
@@ -145,7 +145,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tksafety-core.js?v=2"></script>
+    <script src="/static/js/tksafety-core.js?v=3"></script>
     <script src="/static/js/tksafety-visit-request.js?v=2"></script>
     <script>initVisitRequestPage();</script>
 </body>
diff --git a/user-management/web/index.html b/user-management/web/index.html
index 23a27db..2a9b5f8 100644
--- a/user-management/web/index.html
+++ b/user-management/web/index.html
@@ -1740,7 +1740,7 @@
     </div>
 
     <!-- JS: Core (config, token, api, toast, helpers, init) -->
-    <script src="/static/js/tkuser-core.js?v=20260313"></script>
+    <script src="/static/js/tkuser-core.js?v=20260313a"></script>
     <!-- JS: Tabs -->
     <script src="/static/js/tkuser-tabs.js?v=20260313"></script>
     <!-- JS: Individual modules -->
diff --git a/user-management/web/push-sw.js b/user-management/web/push-sw.js
new file mode 100644
index 0000000..930acbc
--- /dev/null
+++ b/user-management/web/push-sw.js
@@ -0,0 +1,41 @@
+// Push Notification Service Worker
+// 캐싱 없음 — Push 수신 전용
+
+self.addEventListener('push', function(event) {
+  var data = { title: '알림', body: '새 알림이 있습니다.', url: '/' };
+  if (event.data) {
+    try { data = Object.assign(data, event.data.json()); } catch(e) {}
+  }
+  event.waitUntil(
+    self.registration.showNotification(data.title, {
+      body: data.body,
+      icon: '/static/img/icon-192.png',
+      badge: '/static/img/badge-72.png',
+      data: { url: data.url || '/' },
+      tag: 'tk-notification-' + Date.now(),
+      renotify: true
+    })
+  );
+  // 메인 페이지에 뱃지 갱신 신호 전송
+  self.clients.matchAll({ type: 'window' }).then(function(clients) {
+    clients.forEach(function(client) {
+      client.postMessage({ type: 'NOTIFICATION_RECEIVED' });
+    });
+  });
+});
+
+self.addEventListener('notificationclick', function(event) {
+  event.notification.close();
+  var url = (event.notification.data && event.notification.data.url) || '/';
+  event.waitUntil(
+    self.clients.matchAll({ type: 'window' }).then(function(clients) {
+      for (var i = 0; i < clients.length; i++) {
+        if (clients[i].url.includes(self.location.origin)) {
+          clients[i].navigate(url);
+          return clients[i].focus();
+        }
+      }
+      return self.clients.openWindow(url);
+    })
+  );
+});
diff --git a/user-management/web/static/js/tkuser-core.js b/user-management/web/static/js/tkuser-core.js
index a073f0f..5b67f15 100644
--- a/user-management/web/static/js/tkuser-core.js
+++ b/user-management/web/static/js/tkuser-core.js
@@ -1,6 +1,8 @@
-/* ===== 서비스 워커 해제 (캐시 간섭으로 인한 인증 루프 방지) ===== */
+/* ===== 서비스 워커 해제 (push-sw.js 제외) ===== */
 if ('serviceWorker' in navigator) {
-    navigator.serviceWorker.getRegistrations().then(function(regs) { regs.forEach(function(r) { r.unregister(); }); });
+    navigator.serviceWorker.getRegistrations().then(function(regs) { regs.forEach(function(r) {
+        if (!r.active || !r.active.scriptURL.includes('push-sw.js')) { r.unregister(); }
+    }); });
     if (typeof caches !== 'undefined') { caches.keys().then(function(ns) { ns.forEach(function(n) { caches.delete(n); }); }); }
 }
 
@@ -181,5 +183,15 @@ async function init() {
     } catch (e) {
         console.error('[tkuser] init 오류:', e);
     }
+    // 알림 벨 로드
+    _loadNotificationBell();
+
     setTimeout(() => document.querySelector('.fade-in').classList.add('visible'), 50);
 }
+
+/* ===== 알림 벨 ===== */
+function _loadNotificationBell() {
+    const s = document.createElement('script');
+    s.src = (location.hostname.includes('technicalkorea.net') ? 'https://tkfb.technicalkorea.net' : location.protocol + '//' + location.hostname + ':30000') + '/shared/notification-bell.js?v=1';
+    document.head.appendChild(s);
+}