refactor: worker_id → user_id 전체 마이그레이션 (Phase 1-4)

sso_users.user_id를 단일 식별자로 통합. JWT에서 worker_id 제거,
department_id/is_production 추가. 백엔드 15개 모델, 11개 컨트롤러,
4개 서비스, 7개 라우트, 프론트엔드 32+ JS/11+ HTML 변환.

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

system1-factory/api/models/monthlyStatusModel.js

@@ -49,7 +49,7 @@ class MonthlyStatusModel {
       // daily_work_reports에서 직접 집계하여 조회 (중복 없음 보장)
       const [rows] = await db.query(`
         SELECT 
-          w.worker_id,
+          w.user_id,
           w.worker_name,
           w.job_type,
           YEAR(?) as year,
@@ -77,9 +77,9 @@ class MonthlyStatusModel {
           END as has_issues,
           MAX(dwr.created_at) as last_updated
         FROM workers w
-        LEFT JOIN daily_work_reports dwr ON w.worker_id = dwr.worker_id AND dwr.report_date = ?
+        LEFT JOIN daily_work_reports dwr ON w.user_id = dwr.user_id AND dwr.report_date = ?
         WHERE w.status = 'active'
-        GROUP BY w.worker_id, w.worker_name, w.job_type
+        GROUP BY w.user_id, w.worker_name, w.job_type
         ORDER BY w.worker_name ASC
       `, [date, date, date, date]);
 
@@ -97,15 +97,15 @@ class MonthlyStatusModel {
     try {
       // 해당 월의 모든 날짜와 작업자 조합을 찾아서 재계산
       const [workDates] = await db.execute(`
-        SELECT DISTINCT report_date, worker_id
-        FROM daily_work_reports 
+        SELECT DISTINCT report_date, user_id
+        FROM daily_work_reports
         WHERE YEAR(report_date) = ? AND MONTH(report_date) = ?
       `, [year, month]);
 
       let updatedCount = 0;
 
-      for (const { report_date, worker_id } of workDates) {
-        await db.execute('CALL UpdateMonthlyWorkerStatus(?, ?)', [report_date, worker_id]);
+      for (const { report_date, user_id } of workDates) {
+        await db.execute('CALL UpdateMonthlyWorkerStatus(?, ?)', [report_date, user_id]);
         updatedCount++;
       }
 
@@ -119,23 +119,23 @@ class MonthlyStatusModel {
   }
 
   // 특정 날짜 집계 강제 업데이트
-  static async updateDateSummary(date, workerId = null) {
+  static async updateDateSummary(date, userId = null) {
     const db = await getDb();
 
     try {
-      if (workerId) {
+      if (userId) {
         // 특정 작업자만 업데이트
-        await db.execute('CALL UpdateMonthlyWorkerStatus(?, ?)', [date, workerId]);
+        await db.execute('CALL UpdateMonthlyWorkerStatus(?, ?)', [date, userId]);
       } else {
         // 해당 날짜의 모든 작업자 업데이트
         const [workers] = await db.execute(`
-          SELECT DISTINCT worker_id
-          FROM daily_work_reports 
+          SELECT DISTINCT user_id
+          FROM daily_work_reports
           WHERE report_date = ?
         `, [date]);
 
-        for (const { worker_id } of workers) {
-          await db.execute('CALL UpdateMonthlyWorkerStatus(?, ?)', [date, worker_id]);
+        for (const { user_id } of workers) {
+          await db.execute('CALL UpdateMonthlyWorkerStatus(?, ?)', [date, user_id]);
         }
       }
 
@@ -163,7 +163,7 @@ class MonthlyStatusModel {
       const [workerStatusCount] = await db.execute(`
         SELECT 
           COUNT(*) as total_records,
-          COUNT(DISTINCT worker_id) as unique_workers,
+          COUNT(DISTINCT user_id) as unique_workers,
           COUNT(DISTINCT date) as unique_dates,
           MAX(last_updated) as last_update
         FROM monthly_worker_status