feat(purchase): 생산소모품 구매 관리 시스템 구현

tkuser: 업체(공급업체) CRUD + 소모품 마스터 CRUD (사진 업로드 포함)
tkfb: 구매신청 → 구매 처리 → 월간 분석/정산 전체 워크플로
설비(equipment) 분류 구매 시 자동 등록 + 실패 시 admin 알림

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

system1-factory/api/routes/purchaseRequestRoutes.js

@@ -0,0 +1,18 @@
+const express = require('express');
+const router = express.Router();
+const ctrl = require('../controllers/purchaseRequestController');
+const { requireMinLevel } = require('../middlewares/auth');
+
+// 보조 데이터
+router.get('/consumable-items', ctrl.getConsumableItems);
+router.get('/vendors', ctrl.getVendors);
+
+// 구매신청 CRUD
+router.get('/', ctrl.getAll);
+router.get('/:id', ctrl.getById);
+router.post('/', ctrl.create);
+router.put('/:id/hold', requireMinLevel('admin'), ctrl.hold);
+router.put('/:id/revert', requireMinLevel('admin'), ctrl.revert);
+router.delete('/:id', ctrl.delete);
+
+module.exports = router;

system1-factory/api/routes/purchaseRoutes.js

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+const express = require('express');
+const router = express.Router();
+const ctrl = require('../controllers/purchaseController');
+const { requireMinLevel } = require('../middlewares/auth');
+
+router.get('/', ctrl.getAll);
+router.post('/', requireMinLevel('admin'), ctrl.create);
+router.get('/price-history/:itemId', ctrl.getPriceHistory);
+
+module.exports = router;

system1-factory/api/routes/settlementRoutes.js

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+const express = require('express');
+const router = express.Router();
+const ctrl = require('../controllers/settlementController');
+const { requireMinLevel } = require('../middlewares/auth');
+
+router.get('/summary', ctrl.getMonthlySummary);
+router.get('/purchases', ctrl.getMonthlyPurchases);
+router.get('/price-changes', ctrl.getPriceChanges);
+router.post('/complete', requireMinLevel('admin'), ctrl.complete);
+router.post('/cancel', requireMinLevel('admin'), ctrl.cancel);
+
+module.exports = router;