feat: Upwards-recursively read .env.braintrust containing BRAINTRUST_API_KEY#466

Abhijeet Prasad (AbhiPrasad) merged 4 commits into

mainbraintrustdata/braintrust-sdk-python:mainfrom

lforst/env-braintrust-api-keybraintrustdata/braintrust-sdk-python:lforst/env-braintrust-api-keyCopy head branch name to clipboard