Oh dear I've just written loads and deleted it all, basically I agree with clazzat
I came to the conclusion that she probably needs at least 12h A time, so just what clazzat said but the other way around
but I think she'll need to be able to catch up a bit after really short nights or two consecutive nursery days - just as you did on that first of three napping days you posted above, that seemed to work well, whereas on the last napping day you posted she probably needed more of a catch up (ie longer nap or earlier BT) but she didn't get that and may have then done an OT short night, wdyt?
Since she seems to handle 12.5h NNDs pretty well, I do wonder whether more like 12.5h would work better for napping days too, but with a 1.5h nap that doesn't make for a very long night, so I'm wondering if things might work better if you shortened that nap further...wdyt? Do you always wake her? I'm thinking something along the lines of a 13h day with a 1h nap to start with, perhaps set BT at 7am and then if her WU gets later ever then BT could gradually be pushed later too? You don't necessarily have to jump straight there, you could try a 1h15 nap first if that feels safer.
Just bear in mind as I said that after two NNDs or a very short night you may want to either let her nap a little longer (but not too long) or give her EBT, I'd probably be inclined to do the former given that she doesn't seem to do particularly long nights - unless of course she doesn't end up napping longer in which case go for a slightly earlier BT.
Sorry I know I'm rambling, does that sound like a workable plan to you at all?