L1 model metadata, bounded archive/cache formats and Bayer packing/tiling helpers. No weights or inference backend. See the user workflow. lightcraft-denoise re-exports these types for CPU/GPU users; the engine uses this crate directly when inference is disabled. The default download catalog is empty. Run cargo test -p lightcraft-denoise-core; optional catalog checks use --features rawnind-model.

The Bayer runner rejects non-finite source samples before inference and non-finite results after gain matching, highlight protection and tile blending. Finite negative and HDR source samples remain supported. These guards do not implement Raw Details or Super Resolution.