INFO shows an account's registration date and (to its owner) email; ALIST
lists the channels an account founds or has access on. The UTC time
formatter moves to the db module so both services share it.
Tracks channel membership (join/part/kick), the current key, and per-nick
last-seen in the network view. Entry messages greet joiners; enforce
re-applies the lock, access modes and auto-kicks to everyone present;
getkey reports the key; seen reports last activity; clone copies a
channel's settings; aop/sop/vop are tiered shortcuts over the access list.
