* Docs: add BoxInsertDesigner to the showcase Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Docs: attribution rows for the BoxInsertDesigner showcase recording Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>