- New Receipt tab in Settings page with editable fields - receipt_header: text below logo (e.g. tagline) - receipt_footer: thank you message - receipt_return_policy: return policy text - receipt_social: website/social media - All stored in app_config, rendered on printed receipts - Seeded in migration with empty defaults Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>