Pass NO_BROWSER=true when probing ACP agents for models, modes, and
persisted sessions. Gemini CLI's ACP newSession handler calls refreshAuth
inline and will open a Google OAuth URL in the browser when no valid
cached token is present — every snapshot warm-up triggered this on
navigation. Real agent sessions still use their own launchContext.env,
so interactive auth continues to work when actually starting an agent.
Mohamed Boudra
82f97e942d