feat(printer): 修改用户照片上传接口返回照片ID

- 将 addUserPhoto 接口的返回值从布尔值改为照片ID
- 更新 AppPrinterController 中上传接口的返回值为照片ID
- 调整 PrinterServiceImpl 实现类中 addUserPhoto 方法返回实体ID- 修改 PrinterService 接口定义，统一返回类型为 Integer

src/main/java/com/ycwl/basic/service/printer/PrinterService.java

@@ -38,7 +38,7 @@ public interface PrinterService {
 
     boolean deleteUserPhoto(Long memberId, Long scenicId, Long relationId);
 
-    boolean addUserPhoto(Long memberId, Long scenicId, String url);
+    Integer addUserPhoto(Long memberId, Long scenicId, String url);
 
     MemberPrintResp getUserPhoto(Long memberId, Long scenicId, Long id);