I may have found my line powered motion sensor solution.
I picked up a couple of those mm wave motion sensors that have been popular recently. They looked that the might just some track lights. Turns out they were slightly too big.
So I opened them up and removed the spring clamps. Then after a couple of minutes with the bench grinder they are almost perfect. I’ll put it in a while housing but I had a black one on hand for the fitment. They will blend right in with the track lights.