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/controllers/patrolController.js

@@ -416,7 +416,7 @@ const PatrolController = {
           LEFT JOIN tasks t ON ts.task_id = t.task_id
           LEFT JOIN work_types wt ON t.work_type_id = wt.id
           LEFT JOIN users u ON ts.leader_id = u.user_id
-          LEFT JOIN workers w ON ts.leader_worker_id = w.worker_id
+          LEFT JOIN workers w ON ts.leader_user_id = w.user_id
           WHERE ts.category_id = ? AND ts.session_date = ?
           ORDER BY ts.created_at DESC
         `, [categoryId, targetDate]);
@@ -433,7 +433,7 @@ const PatrolController = {
             SELECT tta.assignment_id, w.worker_name, w.occupation,
                    tta.attendance_status, tta.signature_image
             FROM tbm_team_assignments tta
-            JOIN workers w ON tta.worker_id = w.worker_id
+            JOIN workers w ON tta.user_id = w.user_id
             WHERE tta.session_id = ?
             ORDER BY w.worker_name
           `, [session.session_id]);