Print now offers every format the AI pipeline knows (9x13 to 60x90, DIN A6-A2,
squares, poster/frame sizes to 70x100, and the screen ratios as physical sizes).
When a picture does not match the target ratio the user picks per image between
cropping to fill and keeping the whole picture on a border colour - never a
stretch. The module is called Passbilder now; /druck redirects.
Fixes two real defects: sharp runs extend after resize, so padded cells came out
oversized (a 35x45 mm cell became 35x171 mm with a border), and the grid packer
rotated a single portrait photo just because more would fit sideways.
Mobile: cards become rows, touch targets ~40px, crop editor as a bottom sheet.
Verified at 390/820/1440px - all three produce the same PDF.
POST /api/print/single (image at an exact size, dpi headers incl. a real-dpi
warning), GET /api/print/single as a mm-to-px calculator, POST /api/print/sheet
(multi-image sheet as PDF, limits on cells/copies/pages) and print_presets for
reusable sheet setups.