CTCP, user actions, and fixes

Enhancements:

• /q added as a shortcut for /quit
• /? added as a shortcut for /quote help

Fixes:

• Incoming messages don't get added to the chat window while scrolling or reviewing mentions. Instead, they get pushed into a temporary buffer, and then added to the chat window when finished scrolling/reviewing. This fixes an issue with laggy scrolling with lots of activity in the room.

• Fixed a typo in the twit help file.

New Features:

• Basic CTCP implemented. Syntax:

  /ctcp <target> <command>

  target: Can be users or rooms. An asterisk specifies all users in the current room.

  command: The CTCP command to be issued. Supported commands:

  • VERSION: Returns the user's MRC client version information.
  • TIME: Returns the client's (BBS's) current local date/time.
  • PING: Doesn't seem fully implemented; most Mystic clients return an empty string.
  • CLIENTINFO: Returns list of commands supported by the remote client.

  Example usage:

  /ctcp * time

  Output returned:

    * [CTCP-REPLY] StackFault TIME 03/31/25 14:49     
    * [CTCP-REPLY] geekboy TIME 03/31/25 14:49        
    * [CTCP-REPLY] mafiath TIME 03/31/25 14:49        
    * [CTCP-REPLY] k9zw TIME 03/31/25 19:49           
    * [CTCP-REPLY] zharvek TIME 03/31/25 14:49

  User can hide/show incoming CTCP requests with /toggle_ctcp. They're shown by default.

• User actions.

  User types /me to perform an action in the room.

  Example usage:

  /me sips coffee

  Message sent to chat room:

  * Codefenix sips coffee

Housekeeping:

• Updated help files. Moved some nonessential commands to /help more (noted in main /help).