InfoServ becomes the dedicated home for network information bulletins,
backed by the same event-sourced news store OperServ NEWS used — one place
to post, not two. POST/LIST/DEL manage public bulletins (shown to every
user on connect); OPOST/OLIST/ODEL the oper ones (shown to operators on
login). Anyone may LIST the public bulletins; posting/removing is admin-
only. The engine's existing connect/login display hooks render them
unchanged. The OperServ NEWS command is retired accordingly (the news
events and the display path stay). Default service.
