feat: Routes & Service Prisma 전환 완료

완료된 파일:

1. ddlRoutes.ts (2개):
   - ✅ health check: PrismaClient 동적 import 제거
   - ✅ SELECT 1 쿼리를 query() 함수로 변경

2. companyManagementRoutes.ts (2개):
   - ✅ findUnique → queryOne (회사 존재 확인)
   - ✅ update → query (soft delete)

3. multiConnectionQueryService.ts (4개):
   - ✅ executeSelect: $queryRawUnsafe → query
   - ✅ executeInsert: $queryRawUnsafe → query
   - ✅ executeUpdate: $queryRawUnsafe → query
   - ✅ executeDelete: $queryRawUnsafe → query

기술적 개선:
- 동적 import 제거로 성능 향상
- 일관된 쿼리 인터페이스 사용
- 파라미터 전달 방식 통일 (...params → params)

전체 진행률: 50/54 (92.6%)
남은 작업: database.ts (4개 - 제거 예정)

backend-node/src/routes/companyManagementRoutes.ts

@@ -3,10 +3,9 @@ import { authenticateToken } from "../middleware/authMiddleware";
 import { AuthenticatedRequest } from "../types/auth";
 import { logger } from "../utils/logger";
 import { FileSystemManager } from "../utils/fileSystemManager";
-import { PrismaClient } from "@prisma/client";
+import { query, queryOne } from "../database/db";
 
 const router = express.Router();
-const prisma = new PrismaClient();
 
 // 모든 라우트에 인증 미들웨어 적용
 router.use(authenticateToken);
@@ -29,9 +28,10 @@ router.delete(
       });
 
       // 1. 회사 존재 확인
-      const existingCompany = await prisma.company_mng.findUnique({
-        where: { company_code: companyCode },
-      });
+      const existingCompany = await queryOne<any>(
+        `SELECT * FROM company_mng WHERE company_code = $1`,
+        [companyCode]
+      );
 
       if (!existingCompany) {
         res.status(404).json({
@@ -58,12 +58,10 @@ router.delete(
       }
 
       // 3. 데이터베이스에서 회사 삭제 (soft delete)
-      await prisma.company_mng.update({
-        where: { company_code: companyCode },
-        data: {
-          status: "deleted",
-        },
-      });
+      await query(
+        `UPDATE company_mng SET status = 'deleted' WHERE company_code = $1`,
+        [companyCode]
+      );
 
       logger.info("회사 삭제 완료", {
         companyCode,

backend-node/src/routes/ddlRoutes.ts

@@ -10,6 +10,7 @@ import {
   validateDDLPermission,
 } from "../middleware/superAdminMiddleware";
 import { authenticateToken } from "../middleware/authMiddleware";
+import { query } from "../database/db";
 
 const router = express.Router();
 
@@ -180,11 +181,7 @@ router.get("/info", authenticateToken, requireSuperAdmin, (req, res) => {
 router.get("/health", authenticateToken, async (req, res) => {
   try {
     // 기본적인 데이터베이스 연결 테스트
-    const { PrismaClient } = await import("@prisma/client");
-    const prisma = new PrismaClient();
-
-    await prisma.$queryRaw`SELECT 1`;
-    await prisma.$disconnect();
+    await query("SELECT 1");
 
     res.json({
       success: true,