I like the idea and the presentation was solid, but I felt like there was one thing holding the theme back.
You were clearly going for an ironic "deal with the devil" theme where the potions backfire on them, but with the customers explicitly saying what it was important to avoid, most of the orders ended up being something like: "I need a potion to do X but please don't kick me in the balls," and then the goal is to make a potion that does X and then kicks them in the balls.
I think it was a bit lacking in subtlety, on that front, and I'm guessing that part of that was because the text was done by ChatGPT.
Also, one major bug: Dragging potions around with the mouse is very inconsistent. The potions frequently got loose from the cursor and I had to click and drag each potion at least 3-4 times before making it to the 'sell' counter. An indication that it's not the correct potion would also have helped.
It would also have been fun to get a bit of info on how the customers' goals ended up playing out.
Still, a fun idea.