Message font dropped from 20px to 14px and the 10px inline margin-bottom
(set from JS on every message) replaced with a 2px CSS margin so the
terminal reads like dense console output instead of spaced-out chat
bubbles. Colors are unchanged.
Connects the previously-disconnected /decode command to per-player
messages: player 1 unlocks sudo for everyone, player 2 unlocks a scan
command that reveals which files the AI virus has locked, player 3
learns those files should be removed.
Also adds a retaliation mechanic: successfully removing a file locks
the player's terminal. The AI virus locks it out in red immediately;
the mainframe reveals a 12-character recovery code in green after 30
seconds, which can be submitted via /unlock to restore access early,
otherwise the terminal auto-recovers after 45 seconds.
Frank