Brummel
b9203624d3
Architect drift review over 682e459..HEAD (the seed-as-input cycle plus the prior unaudited `aura run --real` work). Cycle is sound: Fork B respected (seed forks at the data-generation edge into the source and the manifest; the engine loop sees only a Source — C12/C1/C3 intact), the contract names Source never Vec (precondition for #68/#52 delivered as specced), and the four seed-free callers thread 0 in lockstep. One medium doc-lag item found and fixed here: aura-engine/src/lib.rs module-doc listed the seed axis under "still to come"; seed-as-input shipped this cycle and RunManifest.seed is now live, so the headline doc now records SyntheticSpec as a delivered seeded Source producer (params + orchestration families remain future). One low carry-on note (not drift): run_sample_seeded exists only under #[cfg(test)] — intended this cycle (no --seed CLI flag per spec non-goals); the only non-test seed value remains 0. A scaling marker for #68, not debt. Regression gate (test suite — no dedicated regression scripts in project facts): cargo test --workspace green; clippy --workspace --all-targets -D warnings clean; cargo doc -p aura-engine clean (the new [`SyntheticSpec`] intra-doc link resolves).