feat(printer): 添加sourceId字段并优化打印逻辑

- 在MemberPrintResp中新增sourceId字段
- 优化PrinterServiceImpl中的水印处理逻辑
- 添加sourceId为空时的返回判断，避免空指针异常

src/main/java/com/ycwl/basic/model/pc/printer/resp/MemberPrintResp.java

@@ -8,6 +8,7 @@ import java.util.Date;
 public class MemberPrintResp {
     private Integer id;
     private Long scenicId;
+    private Long sourceId;
     private String scenicName;
     private Long faceId;
     private Long memberId;

src/main/java/com/ycwl/basic/service/printer/impl/PrinterServiceImpl.java

@@ -624,7 +624,9 @@ public class PrinterServiceImpl implements PrinterService {
         }
         userPhotoListByOrderId.forEach(item -> {
             PrinterEntity printer = printerMapper.getById(item.getPrinterId());
-
+            if (item.getSourceId() == null) {
+                return;
+            }
             // 水印处理逻辑
             String printUrl = item.getCropUrl();
             try {