This is going to be an issue and more people are going to get hurt. It sucks when you're accused of something you haven't done, no one believes you and there's not much you can do to prove it.
Regarding job applications, I've seen a report in TV, about job interviews. There was a guy who applied for a certain position and as a next step, he was invited to have an interview with an AI bot. He said "no thanks, if you can't even bother to interview me in person, I'm not interested".
I think we're going to have to find a way to handle things the right way and find a balance with AI. I hope your nice can get out of this mess and also get over it as it can mark you, especially at a young age.
I think she will be okay, it was pretty clear based on some other info the teacher was just having a bad day and for some reason decided to take it out on her, but yeah, it still sucks. I think a lot of employers are going to start relying on AI and then being sorry after the fact about the quality of workers they are getting because of it.