fix(anthropic): Record thinking tokens as metric - #2382

fix(anthropic): Record thinking tokens as metric#2382

Dylan Pulver (dylanpulver) wants to merge 4 commits into

braintrustdata:mainbraintrustdata/braintrust-sdk-javascript:mainfrom

dylanpulver:fix/anthropic-thinking-tokensdylanpulver/braintrust-sdk-javascript:fix/anthropic-thinking-tokensCopy head branch name to clipboard