Two bugs compounded on Proxmox hosts: primary_iface walked
`ip link show` and picked the physical NIC (e.g. enp1s0), which has
no IPv4 on Proxmox because the address lives on vmbr0. Even if vmbr0
had been picked, the kernel reports its broadcast as 0.0.0.0, so the
script fell all the way back to 255.255.255.255.
Now we prefer the default-route interface (vmbr0 on Proxmox, eno1 on
bare metal) and, when `ip` doesn't surface a usable `brd`, compute
the broadcast from the inet CIDR instead of giving up.
Operator pastes `curl -fsSL $ORCH/register/quick.sh | sudo bash` on the
target host (pre-wipe). The script probes MAC + CPU/RAM/disks/NICs/GPUs,
emits an expected-spec YAML, and POSTs to a new LAN-trusted JSON
endpoint /api/v1/hosts. The register page shows the command prefilled
with the orchestrator URL; the manual form moves into a collapsible
"Register manually" disclosure.
josh