Retrieved knowledge file names

[gsantopaolo]

at the moment the file name is something like minio_guid_filename.

When sending back to the client the list remove the part of the file that we aad
this way we will display the real filename

[apCognixCh]

May be have a sense to add field 'original_file_name' to table documents ?
I add uuid to original filename for store it in minio ( User can have several document with similar name in different folders)

[gsantopaolo]

for the moment just split the string so that we can have a quick win