Brummel
52e0214adb
Architect drift review over 065cf1d..HEAD. Code + contracts hold; the only drift was documentation cross-references made stale by retiring RunReport's hand-rolled to_json. Contracts (all hold): - C14: to_json still emits canonical, flat, deterministic JSON — now serde-produced. model_to_json (the graph-model JSON) stays hand-rolled and was correctly untouched. - C16: serde_json dev-dep → normal-dep in aura-engine is squarely sanctioned by the amended per-case policy (INDEX.md:576-583) — a vetted standard crate used where it does the job (incl. the frozen bot), removing a hand-rolled writer. No gap. - C1: report types have no HashMap; serde is declaration-order/deterministic; the r1.to_json()==r2.to_json() asserts and the new to_json_equals_serde_disk_shape pin stay green. Regression: none configured (profile regression: []) — no-op; architect is the gate. Resolution — fix (3 prose cross-refs, fixed inline this commit): - graph_model.rs:5 (module doc) — claimed the model JSON is in the "RunReport::to_json house style (no serde)"; to_json is serde now. Reframed: the model JSON is hand-rolled (no serde), and is the engine's last hand-rolled JSON writer since 0033. - graph_model.rs:30 (json_str doc) — cross-referenced RunReport::json_str, deleted this cycle. Reworded to describe the escape set directly (graph_model's own json_str stays). - docs/design/INDEX.md:729 — "golden-tested like RunReport::to_json" framed the hand-rolled model JSON by a now-serde to_json. Reframed to name model_to_json as the surviving hand-rolled writer. Cycle 0033 drift-clean after this tidy. Not a milestone close (the param-sweep milestone fieldtest is a separate deliberate act). Gates: clippy --workspace --all-targets -D warnings clean (doc-only edits, compile-inert). refs #54