- Registration wizard now opens /invoices/{uuid}/print in new tab instead of printing whole page
- Print view redesigned: mobile-responsive layout, touch-friendly 48px buttons, proper viewport
- Share button (Web Share API) shows on mobile devices that support it
- Print-receipt-button component changed from window.open popup to target=_blank link
- Added min-height 48px to all action buttons for touch accessibility
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>