Updates API.md and S3a discovery doc to reflect submitter-details handling and the draft/submit split. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Updates API.md and S3a discovery doc to reflect submitter-details handling and the draft/submit split. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>