WHO doesn't support multiple targets (absent from TARGMAX on all
major IRCds). Replace per-nick WHO with a debounced per-channel WHO:
on JOIN, schedule WHO #channel after 2s delay. Subsequent JOINs
within the window reset the timer, so a netsplit producing dozens
of JOINs results in a single WHO.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Previously the bot only sent WHO on connect (001), so users joining
after the initial scan were never checked for oper status. Now sends
WHO <nick> on every JOIN event to detect opers mid-session.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Queue-based _MockConnection replaces IRCConnection to test the full
bot pipeline (registration -> dispatch -> handler -> response) without
network I/O. 14 tests cover CAP negotiation, PING/PONG, command
dispatch, prefix matching, admin enforcement, channel filtering,
and CTCP responses.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
