Auto-update CLI (via hook in CC, rule in Cursor)

[dkrevitt]

Haven't updated this since we moved from a proper Claude plugin to just copying files with kurt init.

[boringdata]

I think we can include the kurt-core CLI auto-update here: check current version vs the one in Pypi

[dkrevitt]

I think we can include the kurt-core CLI auto-update here: check current version vs the one in Pypi

100pct agreed