as a user performing an action on a set of docs, I know when the asynch process is completed

because the process is asynchronous, I need a way to know when the action I requested is completed.

AC:

I see a notification stating that my reuested action is complete

the notification should appear until I close it (because large actions can take a lot of time, the user might not even be in the app when the process completes, therefore the message should persist until a user closes it)