Network control (CONNECT, DISCONNECT, RECONNECT, NICK, RAW), visibility (CHANNELS, CLIENTS, BACKLOG, VERSION), config management (REHASH, ADDNETWORK, DELNETWORK, AUTOJOIN), and NickServ operations (IDENTIFY, REGISTER, DROPCREDS). Total command count: 22. Adds stats()/db_size() to Backlog, add_network()/remove_network() to Router, and _connected_at timestamp to Client. 74 command tests. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>