fix:进行design后library中可能会生成同样的图片

fix:ageGroup在designSingle时不会被存入数据库导致收藏页面不能显示完整

src/main/java/com/ai/da/service/DesignService.java

@@ -124,4 +124,6 @@ public interface DesignService extends IService<Design> {
     Boolean cloudTaskNameUpdate(CloudTaskDTO cloudTaskDTO);
 
     Boolean cloudTaskDelete(CloudTaskDTO cloudTaskDTO);
+
+    String getAgeGroupByProjectOrCollectionId(Long projectId, Long collectionId);
 }