bin/moko list now auto-groups 45 commands into 12 categories with
color formatting. Also loads plugin commands dynamically via
getCommands() — when plugins define commands, they'll appear
automatically under "Plugin: <type>" groups.
Closes#104
Authored-by: Moko Consulting
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>