feat(felhomsshd): dedicated OOB sshd instance + port-adaptive belt (H1 Parts 2-4 agent)
internal/felhomsshd: agent-managed felhom-sshd (claim port [8822,2222,8022,62222]
loud-fail-on-exhaustion; render config→sshd -t→reload never-restart-on-change
[SF-2]; operator authorized_keys from the hub block outside ~/.ssh [SF-3]); the
static-table nft belt mutating ONLY @operator_ips + @ssh_port [trap 4]; health/heal
(reset-failed-then-restart with 10min cooldown, NEVER restart onto an invalid
config) + the oob heartbeat stanza. configs/felhom-sshd.service (SAFE, no
RuntimeDirectory [SF-1]). FELHOM_SSHD + FELHOM_OOB sudoers (set-elements only).
oob.enabled config DEFAULT FALSE. Wired into main like wgtunnel.
Non-hollow tests: claim clean/contention/idempotent/exhaustion; config
safe+byte-stable+refuses-:22; belt mutate-then-idempotent + never-touches-rules;
heal no-restart-on-invalid-config + cooldown; status reflects block.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6
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