Nice experiment! As mentioned, I did something similar, with OpenAI/Codex. But with Codex interpreting the project I already have, I do have a better feeling of its capability.
However, for AU2 and from scratch, it is not good enough I agree.
Are there any AI-wizkids around who have experience in learning the general AI how it operates? Like specific notes for AI in the help documentation, a clear notification of the renaming of the router? No clue if that’s possible, but all little things might help.
That said. I did something else during the holidays (yes, time to spare 
). I let Codex run a complete migration of our AU1+webpack project to AU2+vite.
I gave it an explicit prompt, based on the migration pages, and the comparison page with checklist of AU1 to AU2. It ran for over 2 hours.
It did not do all that was needed. It did not all in detail. But that might also because of my incomplete/incorrect prompt. I still have to do additional analysis to see what is missing and what is needed. .
But with these two things together, especially with AI to help, the migration path might be very much aided with a proper prompt. That too can be a very worthy addition to the help page. Imagine, jest copy and paste, and let the AI do the work for you!
Somewhere next period I will write this into a separate post as well, with the details of my experiment.