🐛 fix: 결제 준비 API column 누락 관련 에러 수정

Author: tl1l1l1s

src/main/java/com/jajaja/domain/order/service/OrderCommandServiceImpl.java

@@ -129,6 +129,7 @@ public OrderPrepareResponseDto prepareOrder(Long memberId, OrderPrepareRequestDt
                     .quantity(cartProduct.getQuantity())
                     .price(cartProduct.getUnitPrice())
                     .status(OrderStatus.READY)
+                    .isReviewWritten(false)
                     .build();
             order.getOrderProducts().add(orderProduct);
         });