Post-merge follow-up to PR #752 — adds 10 commands that were added
since the PR was submitted:
Session: /title, /compress, /rollback
Configuration: /provider, /verbose, /skin
Tools & Skills: /reload-mcp (+ full /skills description)
Info: /usage, /insights, /paste
Also preserved existing color formatting (_cprint, _GOLD, _BOLD, _DIM)
and skill commands section from main.