## What changed
Add `//third_party/voice:native_prefix` to run the existing native build recipe with Bazel-declared archives and toolchain inputs on matching macOS and Linux GNU 2.28 targets for x64 and ARM64. The manual target exports `prefix.tar` and a `built.json` receipt through the `receipt` output group.
Keep macOS actions local to access Apple tools, use Apple's linker for libffi partial links, and preserve compiler runtime flags through libtool on Linux. Surface upstream build failure logs in the Bazel action output.
Document the build's host utility requirements and the distinction between the raw prefix and a relocatable SDK or runtime package.
GitOrigin-RevId: b4917943f621dec07bb994392619e8a42e496b8b
