nextdns-cli general code review

Hello.

A long time ago, I used nextdns-cli, but switched to other options because it had a random bug where it stopped responding, and it was tough to diagnose.

I'm not a Go coder, but I had some spare Claude credits, so I asked it to have a look through the code to identify any possible bugs. See attached PDF.

Obviously all, or most, of the things it claims could be entirely wrong and utterly dumb. But I thought I'd put it here, just in case. Could someone who's familiar with the codebase have a gander and see whether anything might actually be worth looking at?

My apologies if it's all ridiculous and a waste of everyone's time. Feel free to delete this  if so.