[Feature] Adapt to Antigravity CLI (Gemini CLI will be replaced on June 18th)

[Jerrrry666]

Background

Gemini CLI will be replaced by Antigravity CLI on June 18th. All agent functionalities are being migrated to the new Antigravity CLI.

Current Status

Currently, in cc-switch-cli, the corresponding tag is still bound to Gemini. Given the tight timeline before the shutdown, this will likely cause disruptions to the agent features.

Question / Request

Are there any plans to adapt to the Antigravity CLI? When can we expect an update that supports the new Antigravity tags?

Thanks!