//! SIMD-dispatched cosine similarity kernel for `BruteForceBackend` (Phase 20).
//!
//! Routes through `tinyquant_core::codec::simd_api::cosine`, which consults the
//! runtime ISA dispatch cache. Byte-identical to the scalar reference on all inputs.
/// Cosine similarity via the runtime-dispatched SIMD kernel.
///
/// Requires `feature = "simd"` on both this crate and `tinyquant-core`.