Add file download function to chat assistant

[Erincrying]

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1. Is this request related to a challenge you're experiencing? Tell me about your story.

I hope to add a download function to the reference files in the answers after adding the context of the knowledge base to the chat assistant. When others add the knowledge base to the context, the agent will provide me with corresponding answers and referenced files. However, when I tried to download the specific files, I found that this feature was not available. I hope it can be provided

2. Additional context or comments

No response

3. Can you help us with this feature?

• [x] I am interested in contributing to this feature.