Attachment library cleaning deletes redundant attachments not called by the article, ly_deuploads

Delete the redundant attachments not called by the article, and delete the attachment library records that do not exist in the local file

Note 1. It is recommended to back up website files and databases first.
2. After detecting all articles, all attachment library records not called in the article are deleted.
3. Delete the attachment library record that does not exist in the local file. It does not support the synchronization of attachments to cloud storage, but the local file does not exist.
4. Please stop the collection before executing, and do not generate new attachments for warehousing. The detection and update process takes some time, and the page under detection cannot be closed.    

Continue execution: ->Interrupt processing, continue the execution