arm-the-dead-man-switches

Configure what a running vike-tradehub node does when it loses sight of a venue while orders are resting — the CONNECTION dead-man (link_deadman_grace_ms, on by default) and the SILENCE dead-man (deadman_timeout_ms, off by default), both set only in <project>/settings/policy.toml. Use when a user asks for cancel-on-disconnect, a kill switch on a dropped feed, what happens to resting orders if the connection dies,…