bosun-ai/swiftide

AI Summary: Implement streaming capabilities for Swiftide's query pipelines, allowing for a more responsive user experience. This involves modifying the `Answer` trait to support streaming responses, adding an `on_stream` hook to the query pipeline, and updating the `Simple` answer step to utilize streaming capabilities from the underlying LLM client. Consideration should be given to maintaining backward compatibility and handling cases where streaming is not supported.