- Update Sprint status from 'not started' to 'completed' - Mark all 4 user stories (US-1 through US-4) as ✅ done - Complete AI-responsible Definition of Done checklist - Update barcode specification to reflect final 69.6mm implementation - Document successful completion of barcode print functionality Sprint 01 Successfully Completed! 🎉 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>