I accidentally left the new user registration for my personal server unchecked. Captchas were on, but I've had around 10,000 users with more than 8,000 repositories hanging around on my server since 2024. How can I get rid of them? Deleting all repos and users individually isn't an option for me. I'd be confident deleting things directly in the database and the file system if I knew what to do and where. Can anyone give me a hint?