feat: 구매/안전 시스템 전면 개편 — tkpurchase 개편 + tksafety 신규 + 권한 보강

Phase 1: tkuser 협력업체 CRUD 이관 (읽기전용 → 전체 CRUD)
Phase 2: tkpurchase 개편 — 일용공 신청/확정, 작업일정, 업무현황, 계정관리, 협력업체 포털
Phase 3: tksafety 신규 시스템 — 방문관리 + 안전교육 신고
Phase 4: SSO 인증 보강 (partner_company_id JWT, 만료일 체크), 권한 테이블 기반 접근 제어

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

user-management/api/routes/partnerRoutes.js

@@ -1,12 +1,19 @@
 const express = require('express');
 const router = express.Router();
-const { requireAuth } = require('../middleware/auth');
+const { requireAuth, requireAdmin } = require('../middleware/auth');
 const ctrl = require('../controllers/partnerController');
 
 router.use(requireAuth);
 
 router.get('/', ctrl.list);
 router.get('/:id', ctrl.getById);
+router.post('/', requireAdmin, ctrl.create);
+router.put('/:id', requireAdmin, ctrl.update);
+router.delete('/:id', requireAdmin, ctrl.deactivate);
+
 router.get('/:id/workers', ctrl.listWorkers);
+router.post('/:id/workers', requireAdmin, ctrl.createWorker);
+router.put('/workers/:id', requireAdmin, ctrl.updateWorker);
+router.delete('/workers/:id', requireAdmin, ctrl.deactivateWorker);
 
 module.exports = router;