I mean honestly... is this an actual problem? If someone uses AI to bullshit all their assignments, they're just going to get to the test and then flop. That, or they do genuinely know the material and are skipping the busywork.
Yes, as it currently stands it could be considered dishonest, but does it actually harm anyone but the student doing it? I'm not so sure we actually need a solution to these problems other than trusting students to fuck around and find out.