fix(bedrock_runtime): improve metrics, tools, and attachments on spans#584

Abhijeet Prasad (AbhiPrasad) merged 2 commits into

mainbraintrustdata/braintrust-sdk-python:mainfrom

fix/bedrock-runtime-spec-compliancebraintrustdata/braintrust-sdk-python:fix/bedrock-runtime-spec-complianceCopy head branch name to clipboard