internal/control/slurmsvc tells each node what it is, writes slurm.conf
and gres.conf from the nodes' reports and the inventory, and moves each node
of slurm.nodes between llmgw and Slurm: lent, drained of replicas first, then
resumed in Slurm; taken back, drained in Slurm and cordoned in llmgw until
its last job step ends. Kept every tick from the settings and the agents'
reports, so a new leader carries on. A broken Slurm never keeps a node from
llmgw. GET /api/v1/slurm; ctl slurm status, setup, lend, reclaim, off.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
