Chroma siblings of 0005 (luma_v) and 0008 (luma_h). Same
NEON-to-NEON pattern via the daedalus recipe layer:
H264DSPContext.v_loop_filter_chroma →
daedalus_recipe_dispatch_h264_deblock_chroma_v
H264DSPContext.h_loop_filter_chroma →
daedalus_recipe_dispatch_h264_deblock_chroma_h
Both kernels landed in daedalus-fourier PR #10. Recipe table routes
AUTO to CPU NEON (no chroma QPU shaders yet), so this is plumbing-
only and stays bit-exact against the in-tree NEON.
Intra chroma (bS=4) loop filters remain on in-tree NEON;
daedalus_h264_deblock_meta covers the non-intra (bS<4) path.
Verified the patch applies cleanly on top of 0001-0008 against the
pinned upstream commit b57fbbe5 on hertz. Wires the new patch into
both arch/PKGBUILD and debian/build-deb.sh.
claude-noether