This PR introduces a metadata field in AssistantAgentConfig, allowing
applications to assign and track identity information for agents.
The metadata field is a Dict[str, str] and is included in the
configuration for proper serialization.
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Co-authored-by: Eric Zhu <ekzhu@users.noreply.github.com>
cleaning up the dotnet docs site, improving formatting, making the
landing page look more like the python
## Why are these changes needed?
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Co-authored-by: Jack Gerrits <jackgerrits@users.noreply.github.com>