5fd59afacf
Gemini 3 Pro requires thoughtSignature on function call blocks in subsequent requests. This commit: - Add thought-signature-store for session-based signature storage - Extract signature from both streaming (SSE) and non-streaming responses - Inject signature into functionCall parts on subsequent requests - Maintain consistent sessionId per fetch instance Debug logging available via ANTIGRAVITY_DEBUG=1 🤖 GENERATED WITH ASSISTANCE OF [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)