Changes to Get statistics for memory bank

added the optional property paused_mental_models to the response with the 200 status

removed the optional property detail/items/url from the response with the 422 status

added the new optional query request parameter refresh

added the non-success response with the status 404

added the optional property last_memory_write_at to the response with the 200 status

added the optional property detail/items/ctx to the response with the 422 status

added the optional property detail/items/input to the response with the 422 status

added the optional property detail/items/url to the response with the 422 status

added the optional property failed_consolidation to the response with the 200 status

added the optional property operations_by_status to the response with the 200 status