fix(order):修复订单打印信息获取逻辑

- 当 printTaskResp 为空时，从 printerMapper 获取打印机信息
- 设置商品的打印机名称和纸张类型字段
- 确保即使任务响应为空也能正确显示打印机数据

src/main/java/com/ycwl/basic/service/pc/impl/OrderServiceImpl.java

@@ -2,6 +2,7 @@ package com.ycwl.basic.service.pc.impl;
 
 import cn.hutool.core.date.DateUtil;
 import com.ycwl.basic.dto.MobileOrderRequest;
+import com.ycwl.basic.model.pc.printer.entity.PrinterEntity;
 import com.ycwl.basic.model.pc.source.entity.MemberSourceEntity;
 import com.ycwl.basic.model.pc.video.entity.MemberVideoEntity;
 import com.ycwl.basic.model.printer.resp.PrintTaskResp;
@@ -356,6 +357,12 @@ public class OrderServiceImpl implements OrderService {
                             if (printTaskResp != null) {
                                 goods.setPrinterName(printTaskResp.getPrinterName());
                                 goods.setPrinterPaper(printTaskResp.getPaper());
+                            } else {
+                                PrinterEntity printerEntity = printerMapper.getById(sourceEntity.getPrinterId());
+                                if (printerEntity != null) {
+                                    goods.setPrinterName(printerEntity.getName());
+                                    goods.setPrinterPaper(printerEntity.getPreferPaper());
+                                }
                             }
                             goodsList.add(goods);
                         }