* Update utils.py (#77) Co-authored-by: Claude <noreply@anthropic.com> * refactor: address code review feedback for embedding performance improvements (#92) Co-authored-by: Claude <noreply@anthropic.com> * fix: prevent sentence transformers from blocking async event loop (#95) Co-authored-by: Claude <noreply@anthropic.com> --------- Co-authored-by: Claude <noreply@anthropic.com>