fix(user/default_wh_objid): numeric → text 로 변환

운영 momo_warehouses.objid 가 text 타입(예: MOMOWH000000001)이라
default_wh_objid 도 text 로 일치시켜야 매핑 가능.
- db/migrations/022_user_default_wh_text.sql
- /api/admin/users/save: ::numeric 캐스트 제거

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

db/migrations/022_user_default_wh_text.sql

@@ -0,0 +1,4 @@
+-- user_info.default_wh_objid 를 text 로 변환
+-- 운영 momo_warehouses.objid 가 text 타입(예: MOMOWH000000001)이라 numeric 으로는 매핑 불가
+ALTER TABLE user_info
+  ALTER COLUMN default_wh_objid TYPE text USING default_wh_objid::text;

src/app/api/admin/users/save/route.ts

@@ -40,7 +40,7 @@ export async function POST(request: NextRequest) {
           address=COALESCE($11, address), ceo_name=COALESCE($12, ceo_name),
           biz_no=COALESCE($13, biz_no),
           unlimited_qty=$14, view_hidden=$15,
-          default_wh_objid=$16::numeric
+          default_wh_objid=$16
          WHERE user_id=$10`,
         [body.user_name || "", body.sabun || "", body.dept_code || "",
          body.dept_name || "", body.position_name || "", body.email || "",