Patch Changes

• 62ae6c7: fix(langchain): recognize Python AIMessageChunk plain message objects from RemoteGraph streams

  Python langchain-core serializes streaming message chunks with type: "AIMessageChunk", while TypeScript langchain-core uses type: "ai". The toUIMessageStream adapter previously only matched the TypeScript form, silently dropping text deltas and tool-call events when streaming from Python LangGraph servers via RemoteGraph.

• Updated dependencies [6c93e36]

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