Gemini CLI 0.55.0 nightly: conversation-state and macOS sandbox fixes

A nightly build carrying fixes to turn/tool-response handling, /compress session reload, and macOS seatbelt profile resolution. Pre-release channel — relevant if you are tracking nightlies or hit these bugs on stable.

Tool: gemini-cli · Version: v0.55.0-nightly.20260806.g761f604c1 · Significance: 2/5 · fix