feat: 작업 관리 시스템 및 TBM 공정/작업 통합

## Backend Changes
- Create tasks table with work_type_id FK to work_types
- Add taskModel, taskController, taskRoutes for task CRUD
- Update tbmModel to support work_type_id and task_id
- Add migrations for tasks table and TBM integration

## Frontend Changes
- Create task management admin page (tasks.html, task-management.js)
- Update TBM modal to include work type (공정) and task (작업) selection
- Add cascading dropdown: work type → task selection
- Display work type and task info in TBM session cards
- Update sidebar navigation in all admin pages

## Database Schema
- tasks: task_id, work_type_id, task_name, description, is_active
- tbm_sessions: add work_type_id, task_id columns with FKs
- Foreign keys maintain referential integrity with work_types and tasks

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

web-ui/js/tbm.js

@@ -5,6 +5,8 @@ let allSessions = [];
 let todaySessions = [];
 let allWorkers = [];
 let allProjects = [];
+let allWorkTypes = [];
+let allTasks = [];
 let allSafetyChecks = [];
 let currentSessionId = null;
 let selectedWorkers = new Set();
@@ -77,6 +79,20 @@ async function loadInitialData() {
       console.log('✅ 안전 체크리스트 로드:', allSafetyChecks.length + '개');
     }
 
+    // 공정(Work Types) 목록 로드
+    const workTypesResponse = await window.apiCall('/tools/work-types');
+    if (workTypesResponse && workTypesResponse.success) {
+      allWorkTypes = workTypesResponse.data || [];
+      console.log('✅ 공정 목록 로드:', allWorkTypes.length + '개');
+    }
+
+    // 작업(Tasks) 목록 로드
+    const tasksResponse = await window.apiCall('/tasks/active/list');
+    if (tasksResponse && tasksResponse.success) {
+      allTasks = tasksResponse.data || [];
+      console.log('✅ 작업 목록 로드:', allTasks.length + '개');
+    }
+
   } catch (error) {
     console.error('❌ 초기 데이터 로드 오류:', error);
     showToast('데이터를 불러오는 중 오류가 발생했습니다.', 'error');
@@ -275,6 +291,14 @@ function createSessionCard(session) {
           <span class="info-label">프로젝트</span>
           <span class="info-value">${session.project_name || '-'}</span>
         </div>
+        <div class="info-item">
+          <span class="info-label">공정</span>
+          <span class="info-value">${session.work_type_name || '-'}</span>
+        </div>
+        <div class="info-item">
+          <span class="info-label">작업</span>
+          <span class="info-value">${session.task_name || '-'}</span>
+        </div>
         <div class="info-item">
           <span class="info-label">작업 장소</span>
           <span class="info-value">${session.work_location || '-'}</span>
@@ -328,6 +352,14 @@ function openNewTbmModal() {
   // 팀장 목록 로드
   populateLeaderSelect();
   populateProjectSelect();
+  populateWorkTypeSelect();
+
+  // 작업 드롭다운 초기화
+  const taskSelect = document.getElementById('taskId');
+  if (taskSelect) {
+    taskSelect.innerHTML = '<option value="">작업 선택...</option>';
+    taskSelect.disabled = true;
+  }
 
   document.getElementById('tbmModal').style.display = 'flex';
   document.body.style.overflow = 'hidden';
@@ -360,6 +392,48 @@ function populateProjectSelect() {
     `).join('');
 }
 
+// 공정(Work Type) 선택 드롭다운 채우기
+function populateWorkTypeSelect() {
+  const workTypeSelect = document.getElementById('workTypeId');
+  if (!workTypeSelect) return;
+
+  workTypeSelect.innerHTML = '<option value="">공정 선택...</option>' +
+    allWorkTypes.map(wt => `
+      <option value="${wt.id}">${wt.name}${wt.category ? ' (' + wt.category + ')' : ''}</option>
+    `).join('');
+}
+
+// 작업(Task) 선택 드롭다운 채우기 (공정 선택 시 호출)
+function loadTasksByWorkType() {
+  const workTypeId = document.getElementById('workTypeId').value;
+  const taskSelect = document.getElementById('taskId');
+
+  if (!taskSelect) return;
+
+  if (!workTypeId) {
+    taskSelect.innerHTML = '<option value="">작업 선택...</option>';
+    taskSelect.disabled = true;
+    return;
+  }
+
+  // 선택한 공정에 해당하는 작업만 필터링
+  const filteredTasks = allTasks.filter(task =>
+    task.work_type_id === parseInt(workTypeId)
+  );
+
+  taskSelect.disabled = false;
+  taskSelect.innerHTML = '<option value="">작업 선택...</option>' +
+    filteredTasks.map(task => `
+      <option value="${task.task_id}">${task.task_name}</option>
+    `).join('');
+
+  if (filteredTasks.length === 0) {
+    taskSelect.innerHTML = '<option value="">등록된 작업이 없습니다</option>';
+    taskSelect.disabled = true;
+  }
+}
+window.loadTasksByWorkType = loadTasksByWorkType;
+
 // TBM 모달 닫기
 function closeTbmModal() {
   document.getElementById('tbmModal').style.display = 'none';
@@ -369,10 +443,15 @@ window.closeTbmModal = closeTbmModal;
 
 // TBM 세션 저장
 async function saveTbmSession() {
+  const workTypeId = document.getElementById('workTypeId').value;
+  const taskId = document.getElementById('taskId').value;
+
   const sessionData = {
     session_date: document.getElementById('sessionDate').value,
     leader_id: parseInt(document.getElementById('leaderId').value),
     project_id: document.getElementById('projectId').value || null,
+    work_type_id: workTypeId ? parseInt(workTypeId) : null,
+    task_id: taskId ? parseInt(taskId) : null,
     work_location: document.getElementById('workLocation').value || null,
     work_description: document.getElementById('workDescription').value || null,
     safety_notes: document.getElementById('safetyNotes').value || null,
@@ -384,6 +463,11 @@ async function saveTbmSession() {
     return;
   }
 
+  if (!sessionData.work_type_id || !sessionData.task_id) {
+    showToast('공정과 작업을 선택해주세요.', 'error');
+    return;
+  }
+
   try {
     const response = await window.apiCall('/tbm/sessions', 'POST', sessionData);