Feature: support when re index will delete the files not in remote#11468

Woody-Hu wants to merge 4 commits intoinfiniflow:maininfiniflow/ragflow:mainfrom

Woody-Hu:fix_when_reindex_will_delete_the_files_which_not_existWoody-Hu/ragflow:fix_when_reindex_will_delete_the_files_which_not_existCopy head branch name to clipboard