I watched the scenes from the episode where she "died" and was brought back to life, and this one, and the clothing is inconclusive because she's wearing basically the same outfit in both. And at the end she's just in a bra and robe, so there is no telling when they swapped her. I still feel like it had to have been early in the season, but who knows. Either way, as I mentioned before, if it turns out to be evil AI I'm going to be annoyed. I suppose the most logical explanation is the Darkhold corrupting Aida, but I hope not.