fix(go/plugins/googlegenai): include `thoughtSignature` in part metad… …ata (#4006)

chore: JS version bump @genkit-ai/core version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/ai version from 1.27.0-rc.2 to 1.27.0 genkit version from 1.27.0-rc.2 to 1.27.0 genkitx-chromadb version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/dev-local-vectorstore version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/evaluator version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/firebase version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/google-cloud version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/googleai version from 1.27.0-rc.2 to 1.27.0 genkitx-langchain version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/next version from 1.27.0-rc.2 to 1.27.0 genkitx-ollama version from 1.27.0-rc.2 to 1.27.0 genkitx-pinecone version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/vertexai version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/checks version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/mcp version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/express version from 1.27.0-rc.2 to 1.27.0 genkitx-cloud-sql-pg version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/compat-oai version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/google-genai version from 1.27.0-rc.2 to 1.27.0

chore: JS version bump @genkit-ai/core version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/ai version from 1.27.0-rc.1 to 1.27.0-rc.2 genkit version from 1.27.0-rc.1 to 1.27.0-rc.2 genkitx-chromadb version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/dev-local-vectorstore version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/evaluator version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/firebase version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/google-cloud version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/googleai version from 1.27.0-rc.1 to 1.27.0-rc.2 genkitx-langchain version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/next version from 1.27.0-rc.1 to 1.27.0-rc.2 genkitx-ollama version from 1.27.0-rc.1 to 1.27.0-rc.2 genkitx-pinecone version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/vertexai version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/checks version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/mcp version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/express version from 1.27.0-rc.1 to 1.27.0-rc.2 genkitx-cloud-sql-pg version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/compat-oai version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/google-genai version from 1.27.0-rc.1 to 1.27.0-rc.2

chore: JS version bump @genkit-ai/core version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/ai version from 1.27.0-rc.2 to 1.27.0 genkit version from 1.27.0-rc.2 to 1.27.0 genkitx-chromadb version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/dev-local-vectorstore version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/evaluator version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/firebase version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/google-cloud version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/googleai version from 1.27.0-rc.2 to 1.27.0 genkitx-langchain version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/next version from 1.27.0-rc.2 to 1.27.0 genkitx-ollama version from 1.27.0-rc.2 to 1.27.0 genkitx-pinecone version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/vertexai version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/checks version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/mcp version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/express version from 1.27.0-rc.2 to 1.27.0 genkitx-cloud-sql-pg version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/compat-oai version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/google-genai version from 1.27.0-rc.2 to 1.27.0

chore: JS version bump @genkit-ai/core version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/ai version from 1.27.0-rc.1 to 1.27.0-rc.2 genkit version from 1.27.0-rc.1 to 1.27.0-rc.2 genkitx-chromadb version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/dev-local-vectorstore version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/evaluator version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/firebase version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/google-cloud version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/googleai version from 1.27.0-rc.1 to 1.27.0-rc.2 genkitx-langchain version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/next version from 1.27.0-rc.1 to 1.27.0-rc.2 genkitx-ollama version from 1.27.0-rc.1 to 1.27.0-rc.2 genkitx-pinecone version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/vertexai version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/checks version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/mcp version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/express version from 1.27.0-rc.1 to 1.27.0-rc.2 genkitx-cloud-sql-pg version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/compat-oai version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/google-genai version from 1.27.0-rc.1 to 1.27.0-rc.2

chore: CLI version bump @genkit-ai/tools-common version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/telemetry-server version from 1.27.0-rc.2 to 1.27.0 genkit-cli version from 1.27.0-rc.2 to 1.27.0

chore: CLI version bump @genkit-ai/tools-common version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/telemetry-server version from 1.27.0-rc.1 to 1.27.0-rc.2 genkit-cli version from 1.27.0-rc.1 to 1.27.0-rc.2

chore: CLI version bump @genkit-ai/tools-common version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/telemetry-server version from 1.27.0-rc.2 to 1.27.0 genkit-cli version from 1.27.0-rc.2 to 1.27.0

chore: CLI version bump @genkit-ai/tools-common version from 1.27.0-rc.1 to 1.27.0-rc.2 @genkit-ai/telemetry-server version from 1.27.0-rc.1 to 1.27.0-rc.2 genkit-cli version from 1.27.0-rc.1 to 1.27.0-rc.2

chore: JS version bump @genkit-ai/core version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/ai version from 1.27.0-rc.2 to 1.27.0 genkit version from 1.27.0-rc.2 to 1.27.0 genkitx-chromadb version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/dev-local-vectorstore version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/evaluator version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/firebase version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/google-cloud version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/googleai version from 1.27.0-rc.2 to 1.27.0 genkitx-langchain version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/next version from 1.27.0-rc.2 to 1.27.0 genkitx-ollama version from 1.27.0-rc.2 to 1.27.0 genkitx-pinecone version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/vertexai version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/checks version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/mcp version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/express version from 1.27.0-rc.2 to 1.27.0 genkitx-cloud-sql-pg version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/compat-oai version from 1.27.0-rc.2 to 1.27.0 @genkit-ai/google-genai version from 1.27.0-rc.2 to 1.27.0