LR-IMP-FORMATS: decode Hasselblad lossless JPEG with selection value 8 (FFF, H3D/H4D/CFV-50c 3FR)

Lossless JPEG scans whose SOS gives predictor selection value 8 (which T.81 leaves undefined) are read as Hasselblad codes them (ljpeg::decode_hasselblad): 32-bit little-endian words read from their most significant bit, no byte stuffing; each row in pairs of samples, both Huffman categories before both differences; category 16 is followed by 16 ignored bits and means -32768; each sample is the previous sample of its column parity in the row plus the difference, modulo 2^16, both starting at 32768 on every row. Only the layout measured is accepted (one component, 16 bits, no point transform or restarts, even width); other layouts and selection values above 8 stay Unsupported. The rule was measured on 14 CC0 files with the ljpeg-explorer tool. RENDER_CACHE_VERSION 23.

crates/engine/src/media.rs

@@ -62,7 +62,7 @@ impl SettingsHashes {
 }
 
 /// Bump when the pipeline's output changes, to invalidate cached thumbnails.
-pub const RENDER_CACHE_VERSION: u64 = 17;
+pub const RENDER_CACHE_VERSION: u64 = 23;
 
 /// Thumbnails render at one of these long edges (so window/cell size changes reuse the cache).
 pub const THUMB_SIZES: [usize; 4] = [128, 256, 384, 512];