LOGSEARCH [pattern] searches the incident log newest-first: match a bare
id (as stamped into a kick reason), or any word from the summary; no
argument lists the most recent. Auspex-gated (read-only investigation).
To make it comprehensive, the command audit trail now records every
notable action to the same incident log (not just to the audit channel,
and regardless of whether one is configured) — so registrations, drops,
akills, suspensions, vhosts, notes, and the like are all findable
alongside the kicks and kills stamped at the removal choke-point.