LLM usage policy for james

Hello,

Since I keep seeing mentions of conflicts arising in projects without a
clear policy when contributions made with LLM assistance are proposed to
projects, I think we should establish a clear policy in advance.

I'm also not quite sure what the Apache foundation stance on this is, I
haven't found or heard of an official foundation wide position but I may
have missed it. The intellectual property risk associated with LLM usage in
open source projects is unclear to me.

What do you think ?

jean