Hey Somewhat Nerd!
First off, great work. After a year and a half, it looks like you are picking up things pretty well. The intro was well done, and you should feel proud of that. I think its something that really made the game feel good when first spinning it up. The gameplay was short, but the idea is definitely there.
A few things I could recommend:
1. Bugs. Admittedly, they always bite everyone. One thing to keep in mind for game jams: If you hit a bug that makes the game unplayable or have to restart prioritize fixing that bug! This is because its SO EASY for the player to give up on your game after 1 or 2 restarts.
2. You can disable collisions for the AI once they have completed their task. This should resolve some of your collision issues (i think).
3. This would have been a really cool idea if the AI needed to be guided to the fruit. Once they were guided, they eat the fruit, and then go do a task for you. This could be them lifting and placing the blocks because you are unable to lift the heavy objects!
Overall this is solid and I highly recommend you keep putting time into learning and becoming more efficient so you can pump even more work out in your future jams. Best of luck my friend.