This is an interesting hand
I like your line. I prefer to x/r flush draws that don't contain a gutshot or straight draw like A2-A4ss KJss on this board at a higher frequency because I find it becomes awkward to realize all of your equity on future streets if you c/c
By the river BT has a lot more boats than you (I'm guessing you have some 89 combos that didn't x/r flop, though) so you pretty much have the top of your range.
There are a few strategies that I think are reasonable which villain could be adopting on the river following a turn over bet.
Overbet jam for value about 12 combos (88,66,89s,89o)
Overbet jam as a bluff (86s, JTdd, QTdd (most people check back AT here so I won't give him that given the flop action) QJdd, 45dd, A7ss, A7dd) 8 combos
If he's overbetting a wider range of hands on the turn I could get behind an additional 1/2 pot range containing something like this
1/2 pot value (99, T7, QJss,45ss) 19 combos
1/2 pot bluff (JTo, JTs, QTo, Qts) 38 combos
If villain is not over betting turn with a wider range of hands he kind of ****s himself a bit with hands with hands like weak flushes and T7 because an overbet jam with these hands would be lighting money on fire so I think he would need to check these back if he had no other hands to balance an additional smaller size with.
You having a hand like KTss allows you to play well against this strategy imo. nh