BatchMode=yes (which the scripts set) implies strict host key checking
and refuses to prompt — so first-time SSH to a host that isn't in
known_hosts fails with "Host key verification failed". Every new host
we register needs a manual `ssh <host>` round-trip first to store the
key before the refresh scripts can reach it.
accept-new fixes that: unknown hosts are auto-accepted into
known_hosts on first connect; subsequent key CHANGES still fail loudly
(as they should — that'd be a MITM signal).
Matches the pattern already used by deploy-stack.sh.
Affects only refresh-server-info.sh and refresh-proxmox-info.sh;
deploy-stack.sh + sync-stacks.sh use their own targets that may or may
not want the same treatment (leaving alone for now).
Parallel to refresh-server-info.sh but pipes proxmox_inspect.sh and writes
to servers/<host>/proxmox-details.txt. Same discovery / ssh-target /
validate-only / dry-run behavior.
Fleet-wide `all` matches dir names containing `-pve` (covers *-pve and
*-pve-* so esh-pve-nas is included alongside pfi-pve / nh3-pve / esh-pve).
Explicit names are never filtered — useful for one-off PVE hosts with
non-matching names.
Validation checks the captured snapshot for: truncation, missing PVE
version line, non-Proxmox target, and surfaces backup-coverage "NO"
verdict counts so gaps show up in the validate-only output.
Initial fleet snapshot refreshed.