Brummel
73938a4e4a
Post-cycle tidy iteration (audit fix-path: planner + implement). Covers two pure-tidy issues: - #29: aura-engine re-exports the core scalar vocabulary (Firing/Scalar/ ScalarKind/Timestamp) so a Blueprint builder needs one import surface. - #14: delete the two near-identical #[cfg(test)] Recorder fixtures in report.rs/harness.rs in favour of the shipped aura-std::Recorder (identical constructor + try_iter drain, so call sites stay byte-identical). #27 (cross-crate sma_cross dedup) was the third tidy candidate but is excluded: after the bit-identical-test protection (hand_wired pole must stay independent) and the aura-run-out-of-scope rule, its only remaining content is deduping a concrete sma_cross composite across aura-cli (non-test) and aura-engine (#[cfg(test)]). No C9-clean home exists for that (a feature-gated pub fn would make a concrete trading signal an engine pub API, which C9 forbids). Narrowed per orchestrator decision; refs #27.