Auto-register was running the monitor reload in a background goroutine,
so the HTTP response was sent before the poller picked up the new node.
If reload failed or was slow, the node appeared in Settings > Proxmox
(reads config from disk) but not on the main Proxmox tab (reads from
active polling state).
Changed both auto-register paths to reload synchronously, matching the
manual add path (HandleAddNode).
rcourtman
027fd9932c