Add frames and "Scan me" CTA text

In the wizard's style step, scroll to the Frame picker. The first tile is "no frame"; the rest are 23 design templates that wrap the QR with chrome and a CTA text — "Scan me" by default.

Each frame has its own background colour, text colour, and aspect ratio. Toggle "Use QR colour" on the frame fill or text fill if you want them to follow the foreground; otherwise the colour pickers stay independent.

The CTA text is editable — set it to "اطلب الآن", "Order now", a URL, or anything short. Long text gets clipped at the frame edge.

Frames render correctly in every export format: PNG, SVG, PDF, EPS, and PDF-CMYK. The frame chrome is real vector geometry, not rasterised — so it scales cleanly to any print size.