Brummel
b9edeaf2db
Cycle B of milestone "The World — parameter-space & sweep". A blueprint's tunable values are injected at bootstrap rather than baked into the builder: a leaf becomes a param-generic recipe (LeafFactory: params -> sized node), and a new build-then- wire compile path binds a positional Scalar vector slot-by-slot against param_space(), building each node through its own constructor. Ratified design (brainstorm): value-empty B over mutate-in-place and over the default-bearing variant. The value lives only in the injected vector (no baked default), so the blueprint stays a pure param-generic recipe (C19); injected values flow through the single new() sizing/validation gate; and because compile_with_params consumes the vector in the same depth-first order param_space() reports, the two share one traversal — subsuming #34's dual-traversal drift hazard. Scope: one vector -> one instance; LeafFactory in aura-core; bootstrap_with_params/ compile_with_params; CompileError::{ParamKindMismatch, ParamArity}; Scalar::as_i64/ as_f64 accessors; fixtures/CLI/bit-identity re-expressed against the vector. Deferred: sweep enumeration (#32), domain validation (#32/C20), single-run authoring convenience (#35). Gates: grounding-check PASS (8 current-behaviour assumptions ratified against green tests; the sole BLOCK — a missing Scalar value accessor — resolved by adding it as in-scope surface). Parse gate a no-op (profile declares no spec_validation). refs #31