sched_queue_is_ready() in core.c was a `return 1` stub, so the picker
(builtin_fcfs and the legacy fcfs) took jobs from every queue and admin
queue inactivation never reached dispatch.
It now returns false for a queue with QUEUE_STAT_INACT_ADMIN or
QUEUE_STAT_INACT_WINDOW set, so an inactive queue's jobs stay pending.
QUEUE_STAT_CLOSED is deliberately not a gate (LSF semantics: closing only
blocks new submissions; already-pending jobs still dispatch). The status
reaches the core through the same queue add/update paths in both drivers,
so live and sim behave identically. test_queue_admin_control.c covers
open, closed and inactive queues on both fixture shapes.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
