更新不同 channel 所上传文件的默认可见范围

dfs-store/src/main/java/cn/reghao/dfs/store/service/ObjectNameService.java

@@ -49,9 +49,12 @@ public class ObjectNameService {
         if (channelId == UploadChannel.disk.getCode()) {
             diskFile = true;
             scope = ObjectScope.PRIVATE.getCode();
-        } else {
+        } else if (channelId == UploadChannel.avatar.getCode() || channelId == UploadChannel.image.getCode()) {
             diskFile = false;
             scope = ObjectScope.PUBLIC.getCode();
+        } else {
+            diskFile = false;
+            scope = ObjectScope.PRIVATE.getCode();
         }
 
         FileMeta fileMeta = objectRepository.getByObjectName(objectPrefix);