gemini-cli => antigravity-cli

[verdverm]

You may have seen this already, but opening as a general FYI for everyone

https://developers.googleblog.com/an-important-update-transitioning-gemini-cli-to-antigravity-cli/

[ptone]

An interim implementation has been posted here, work is underway to make harness-config management much easier

https://github.com/ptone/scion-antigravity/tree/main/antigravity