RAF's header, metadata records and Fuji IFD give size, packing (16-bit, 12-bit LSB-first,
14-bit in 32-bit words), layout, black, WB, crop and exposure bias; X-Trans and other
periodic non-Bayer CFAs go through a new edge-directed demosaic. Compressed and early
SuperCCD RAF stay unsupported (preview fallback). Tests use synthetic files only.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
