This game is absolutely fantastic! I was honestly already having fun when it was simply sorting white and blue docs lol but the expansion of requirements as you go makes this a really enjoyable experience.
The amount of mechanics you were able to fit into this within 3 days is absolutely incredible, not just due to the difficulty of adding so many moving pieces but also because they fit so seamlessly well together, this is a very well crafted game. Only thing I'd note is that a custom font would really enhance the game's look, the Godot default is quite noticeable and gives it a partial unfinished feel but that's a small nitpick in an otherwise stellar project!
Wonderful job!