Scan captures

Scan on this Mac and the simulator, made by CI from claude/document-sense at 723709b: made-up photos of a made-up invoice before and after cleaning, with what was read on them (scan-numbers.txt, scan-detection.txt, scan-pdf-sizes.txt, scan-covered-pdf-text.txt); the Scan tab, Review and Save and Share, what goes to Claude, and the Photos tab's offer to clean a photographed document, light and dark, at the largest text sizes, on the newest iPhone and the smallest, in German, Arabic and English; and videos of the walks, with and without Reduce Motion. For review; not a download of Snapfly.