I think you are safe, bud rot usually has the leaf/leaves drooping as well as going brown/yellow and if it survives the "pull test" things are still positive.
One week to go might be a bit premature, personally I don't consider a plant to be mature enough for harvesting until there are 95-99% brown pistils.
Do keep the humidity down though, those buds look dense and are prime candidates for rot.
Outdoors and 32 degrees C isn't too hot, 45 is! (anything up to 38 is ok)
The yellow leaves might be due to stopping feeding too early.
I usually stop feeding at about 95% brown pistils, (start flushing then too) and harvest about 2 weeks later when there are 98-99% brown pistils.
This puts the plant in the "10-30% amber trichome" zone without having to look too closely and is also the stage where THC peaks and CBD levels are moderate, giving a well developed and balanced effect.
50/50 brown and white pistils indicates to me an under mature plant with under developed THC levels.
Another 2-3 weeks to go in my judgement.
Unfortunately, the plants don't read the breeders' labels and will march to the beat of their own drum!
Hope this helps, Organoman.