feat: Upwards-recursively read .env.braintrust containing BRAINTRUST_API_KEY#63

Andrew Kent (realark) merged 3 commits into

mainbraintrustdata/braintrust-sdk-dotnet:mainfrom

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