Avoid relying on Start Specification the Folders

Since NXP-27573 We Add the ability to upload Folders, but we don't have the statuses from Aspera Node. As first solution it was to rely on the start specification information

[

  {
    "id": "6f50a8b5-1384-4725-9957-2ac513692905",
    "status": "running",
    "start_spec": {
      "source_paths": [
        "/Users/any_user/Pictures/mustang.jpg",
        "/Users/any_user/Pictures/mustang2.jpg"
      ],
....

but the main issue / limitation is on the start_spec we also have the files and we cannot only rely on extension to avoid any issues with file / folder name with `.` at the end we should avoid here
the idea is to state that a Folder is completed once the transfer it's. As same time we will see with Aspera if they can add the info on the folder itself without adding more complexity on our side like loop over files and try to see which is completed and which is not ....