This is a fascinating sort of submission, certainly not the kind of thing I would expect to see for a 3 day game jam. It's really impressive, and I love the concept. Unfortunately, I didn't have time to fully figure out how to work everything, but the reason for that is less about learning JavaScript, and more about the lack of tutorialization. I would have loved to see a clearer breakdown of your objectives than immediately going from level 1 "you're programming an AI to farm better" to level 100 "here's a more efficient starting program of some 300 lines of code".
Knowing what it means for your robot to get better at farming, what the different tiles are about, how the tools work, and what are some examples of small changes you can make to the starter code all would have been great, and I think there's a way to communicate that kind of tutorial outside of a wiki page in the description.
Very nice work, and I would like to see the YouTube shorts version of what it looks like to be really good at this game.