Merge branch 'kk/prio-queue-get-put-fusion' into next

The lazy priority queue optimization pattern (deferring actual removal in prio_queue_get() to allow get+put fusion) has been folded directly into prio_queue itself, speeding up commit traversal workflows and simplifying callers. * kk/prio-queue-get-put-fusion: prio-queue: fold lazy_queue into prio_queue for automatic get+put fusion prio-queue: rename .nr to .nr_ and add accessor helpers