Brummel
9fbc16afb9
Architect drift review over fef09d4..a4fb5d7 (blueprint construction layer / composite inlining, #12): drift-clean, carry-on. Regression gate is a no-op (commands.regression empty); architect is the sole gate and found nothing actionable. What holds against the ledger (verified by fact, not claim): - C1/C16: `git diff --stat` shows only blueprint.rs (new) + lib.rs (+2 lines). harness.rs (run loop, bootstrap), node.rs (Node trait), and Edge/Target/SourceSpec are byte-untouched, so determinism is preserved — the compilat is the same flat topology a hand-wiring produces. aura-engine's Cargo.toml adds no external dependency (aura-std is [dev-dependencies] only), so the zero-external-dependency engine workspace invariant holds. - C9/C23: `Composite` is not a `Node` (no `impl Node for Composite`, never `eval`'d); `compile()` inlines to a flat (nodes, sources, edges) wired by raw index; names survive only as non-load-bearing debug symbols. The bit-identical demonstrator proves the compilat equals the hand-wired flat graph for the SMA-cross. No runtime sub-engine reached the run loop. - C19: binding is a compilation; typed CompileError validation delegates the lowered-compilat check to the unchanged bootstrap kind/Kahn check (no re-implementation). Acknowledged debt (low, named — not silent drift), filed to the forward queue: - #24 — Composite::schema() panics on malformed indices where compile() returns a typed CompileError (two validity surfaces, divergent failure modes; doc-acknowledged). - #25 — compile() re-calls dyn Node::schema() (fresh Vec alloc) at each resolve site, duplicating bootstrap's kind-derivation; compile-time only, no hot-path cost. Neither debt item blocks the deferred C23 optimisation passes, the natural next direction.