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/web/js/management-dashboard.js

@@ -255,11 +255,11 @@ function analyzeDashboardData() {
   // 작업자별 데이터 그룹화
   const workerWorkData = {};
   workData.forEach(work => {
-    const workerId = work.worker_id;
-    if (!workerWorkData[workerId]) {
-      workerWorkData[workerId] = [];
+    const userId = work.user_id;
+    if (!workerWorkData[userId]) {
+      workerWorkData[userId] = [];
     }
-    workerWorkData[workerId].push(work);
+    workerWorkData[userId].push(work);
   });
   
   // 전체 통계 계산
@@ -272,7 +272,7 @@ function analyzeDashboardData() {
   
   // 작업자별 상세 분석 (개선된 버전)
   const workerAnalysis = workers.map(worker => {
-    const workerWorks = workerWorkData[worker.worker_id] || [];
+    const workerWorks = workerWorkData[worker.user_id] || [];
     const workerHours = workerWorks.reduce((sum, work) => sum + parseFloat(work.work_hours || 0), 0);
     
     // 작업 유형 분석 (실제 이름으로)
@@ -455,7 +455,7 @@ function createWorkerRow(worker) {
       <div class="update-time ${updateClass}">${updateTimeText}</div>
     </td>
     <td>
-      <button class="detail-btn" onclick="showWorkerDetailSafe('${worker.worker_id}')">
+      <button class="detail-btn" onclick="showWorkerDetailSafe('${worker.user_id}')">
         📋 상세
       </button>
     </td>
@@ -479,7 +479,7 @@ function formatDateTime(date) {
 // 작업자 상세 모달 표시 (안전한 버전)
 function showWorkerDetailSafe(workerId) {
   // 현재 분석된 데이터에서 해당 작업자 찾기
-  const worker = filteredWorkData.find(w => w.worker_id == workerId);
+  const worker = filteredWorkData.find(w => w.user_id == workerId);
   if (!worker) {
     showMessage('작업자 정보를 찾을 수 없습니다.', 'error');
     return;