As you can see, it says nothing about researching, troubleshooting, reverse-engineering, etc. As long as you write and understand the code yourself AI is allowed for everything else. As long as you’re not using generative AI it’s fine.
I'm not sure if you're joking or legitimately confused, but, assuming the latter, fyi the "AI" that people use for "researching, troubleshooting, reverse-engineering, etc" is part of what is called "generative AI". Given this, it's not much a stretch to read it as saying that even posting in Nura forums about the existence of @sv1sjp@lemmy.world's github repo would actually be a violation of Nura's policy (as of today; I expect it will evolve in the not-too-distant future).