A single choke-point in handle() gives each outgoing Kick / KillUser a
short id, appends it to the reason the user sees ([#3F]), and records a
searchable summary in a bounded per-node incident ring on the live network
view. So a bot flood-kick, a fantasy kick, a votekick, and an operator
KICK are all logged the same way, and the id in a kick reason ties back to
the log entry. Exposed via NetView::search_incidents (id-exact or summary
substring, newest first) for the LOGSEARCH command to come.