ADR-0037: One golden fixture asserted from both TypeScript and Rust

Status: accepted

Context

A config format implemented twice drifts silently; reviewing the two for agreement does not work. The fixture found two live export bugs on its first run

Decision

One golden fixture asserted from both TypeScript and Rust

Evidence

tests/fixtures/parity/, tests/cli-parity.test.ts, unv-cli/tests/parity.rs