LR-IMP-FORMATS: render cache version 43 (ARW6 decodes instead of falling back to the embedded JPEG)

Co-Authored-By: Claude <noreply@anthropic.com>

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 = 42;
+pub const RENDER_CACHE_VERSION: u64 = 43;
 
 /// 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];