Calibre Web and its forks (e.g. the Automated variant) are not part of the calibre e-book library management application. For your particular issue you need to read the following:
Want to change folder structure or file names in the Calibre library?
Why doesn’t calibre let me store books in my own folder structure?
There are dozens of threads with dozens of replies in this sub-forum on this topic (change folder and file names), the answer is always the same - no you can't.
Ask the CWA developer to stop injecting confected subtitles into the book title - i.e. "Vier moralische Schriften" is good enough, see ==>>
https://www.goodreads.com/book/show/...sche_Schriften).
BR