Independent mechanical bridge review

APPROVE the proposed bridge, /root/xtask_code_review (Codex), 2026-10-16. Reviewed ../hygiene-proposal.patch, SHA256 e641254187f42f1da7940f4fc0e775f4005df64e0875ae3f65d3d2f38ae75163, against admission source closure 47bffad98aa5a820aab3bf02d2d19d375bcc0ba76e07d24268b35d39b9426250. This approves the exact proposed delta; fresh final gates/source identity remain necessary after applying it.

The sparse prefetch iterator visits exactly the original first min(len, PF) columns in the same order. The Chebyshev iterator visits indices 2..=order: successful coefficient construction yields precisely order+1 values. The named scaled temporary keeps the original multiply operand/evaluation order, including exceptional floating-point operands. Kernel calculations and numerical bounds remain unchanged. The duplicate GEMM attribute and unused example local have no execution effect. Remaining changes are test-only array/iterator substitutions or rustfmt layout; they preserve original values and assertion domains.

Independent standalone literal check, run from the task checkout with:

/Users/master/.rustup/toolchains/1.95.0-aarch64-apple-darwin/bin/rustc audit/2026-10-16-acpu-delivery/admission/independent-literals.rs -o /tmp/acpu-admission-independent-literals
/tmp/acpu-admission-independent-literals

Actual output retained in independent-literals.stdout: original decimal 3.14f32 and the proposed from_bits value both encode 4048f5c3; old/new Bessel oracle spellings both encode 3fa20e73. No tolerance or oracle value changes. No Cargo test rerun, production edit or unsafe malformed-parent execution was performed by this reviewer. Chebyshev numerical overflow remains separately open.