feat: webTypeStandardController & fileController Prisma 전환 완료

컨트롤러 레이어 전환:

webTypeStandardController.ts (11개):
- ✅ getWebTypes: findMany → query (동적 WHERE, ILIKE)
- ✅ getWebType: findUnique → queryOne
- ✅ createWebType: findUnique + create → queryOne (중복 체크 + INSERT)
- ✅ updateWebType: update → query (동적 UPDATE, 11개 필드)
- ✅ deleteWebType: delete → query (RETURNING)
- ✅ updateSortOrder: $transaction → transaction (batch update)
- ✅ getCategories: groupBy → query (GROUP BY, COUNT)

fileController.ts (1개):
- ✅ downloadFile: findUnique → queryOne

기술적 구현:
- 동적 WHERE 절: ILIKE를 사용한 검색
- 동적 UPDATE: 11개 필드 조건부 업데이트
- 트랜잭션: transaction 함수로 batch update
- GROUP BY: 카테고리별 집계

전체 진행률: 42/29 (145%) - 컨트롤러 완료
남은 작업: Routes(4), Service(4), Config(4)

backend-node/src/controllers/fileController.ts

@@ -723,11 +723,10 @@ export const downloadFile = async (
   try {
     const { objid } = req.params;
 
-    const fileRecord = await prisma.attach_file_info.findUnique({
-      where: {
-        objid: parseInt(objid),
-      },
-    });
+    const fileRecord = await queryOne<any>(
+      `SELECT * FROM attach_file_info WHERE objid = $1`,
+      [parseInt(objid)]
+    );
 
     if (!fileRecord || fileRecord.status !== "ACTIVE") {
       res.status(404).json({