chore(zone): schema GRANT for mall_delivery_area to mall_user

backend/_workspace/migration_zone_delivery_areas.sql

@@ -118,6 +118,10 @@ ON CONFLICT (city, state) DO UPDATE
    SET store_id=EXCLUDED.store_id, zip=EXCLUDED.zip, lat=EXCLUDED.lat, lng=EXCLUDED.lng,
        same_day=EXCLUDED.same_day, active=TRUE;
 
+-- 신규 테이블/시퀀스에 대해서만 앱 계정(mall_user) 권한 부여 (소유자 postgres → app 접근)
+GRANT SELECT, INSERT, UPDATE, DELETE ON mall_delivery_area TO mall_user;
+GRANT USAGE, SELECT ON SEQUENCE mall_delivery_area_id_seq TO mall_user;
+
 COMMIT;
 
 -- 검증

backend/src/main/resources/db/schema.sql

@@ -186,6 +186,13 @@ INSERT INTO mall_delivery_area (store_id, city, state, zip, lat, lng, same_day)
 ON CONFLICT (city, state) DO UPDATE
    SET store_id=EXCLUDED.store_id, zip=EXCLUDED.zip, lat=EXCLUDED.lat, lng=EXCLUDED.lng,
        same_day=EXCLUDED.same_day, active=TRUE;
+-- 앱 계정 권한(소유자 postgres로 생성 시 대비) — 신규 테이블/시퀀스 한정
+DO $$ BEGIN
+  IF EXISTS (SELECT 1 FROM pg_roles WHERE rolname='mall_user') THEN
+    GRANT SELECT, INSERT, UPDATE, DELETE ON mall_delivery_area TO mall_user;
+    GRANT USAGE, SELECT ON SEQUENCE mall_delivery_area_id_seq TO mall_user;
+  END IF;
+END $$;
 
 -- ---------------------------------------------------------------------------
 -- 3. 카탈로그 / 상품 / 사이즈 / 옵션