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>

api.hyungi.net/models/tbmModel.js

@@ -10,15 +10,17 @@ const TbmModel = {
   createSession: (sessionData, callback) => {
     const sql = `
       INSERT INTO tbm_sessions
-      (session_date, leader_id, project_id, work_location, work_description,
-       safety_notes, start_time, created_by)
-      VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+      (session_date, leader_id, project_id, work_type_id, task_id, work_location,
+       work_description, safety_notes, start_time, created_by)
+      VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
     `;
 
     const values = [
       sessionData.session_date,
       sessionData.leader_id,
       sessionData.project_id,
+      sessionData.work_type_id,
+      sessionData.task_id,
       sessionData.work_location,
       sessionData.work_description,
       sessionData.safety_notes,
@@ -40,11 +42,16 @@ const TbmModel = {
         w.job_type as leader_job_type,
         p.project_name,
         p.job_no,
+        wt.name as work_type_name,
+        wt.category as work_type_category,
+        t.task_name,
         u.username as created_by_username,
         COUNT(DISTINCT ta.worker_id) as team_member_count
       FROM tbm_sessions s
       LEFT JOIN workers w ON s.leader_id = w.worker_id
       LEFT JOIN projects p ON s.project_id = p.project_id
+      LEFT JOIN work_types wt ON s.work_type_id = wt.id
+      LEFT JOIN tasks t ON s.task_id = t.task_id
       LEFT JOIN users u ON s.created_by = u.user_id
       LEFT JOIN tbm_team_assignments ta ON s.session_id = ta.session_id
       WHERE s.session_date = ?
@@ -68,11 +75,17 @@ const TbmModel = {
         p.project_name,
         p.job_no,
         p.site,
+        wt.name as work_type_name,
+        wt.category as work_type_category,
+        t.task_name,
+        t.description as task_description,
         u.username as created_by_username,
         u.name as created_by_name
       FROM tbm_sessions s
       LEFT JOIN workers w ON s.leader_id = w.worker_id
       LEFT JOIN projects p ON s.project_id = p.project_id
+      LEFT JOIN work_types wt ON s.work_type_id = wt.id
+      LEFT JOIN tasks t ON s.task_id = t.task_id
       LEFT JOIN users u ON s.created_by = u.user_id
       WHERE s.session_id = ?
     `;