Brummel
b622a74571
The first walking-skeleton cycle: the aura-core data substrate everything streams through — the four scalar base types (Scalar/ScalarKind/Timestamp, C7), the fixed-capacity financial-indexed SoA Column with its zero-copy Window (C8), the type-erased AnyColumn edge with an edge-time kind check (C7), and the per-column run_count freshness primitive (C5). Sharpens the RustAst reference: no boxed Value, no VecDeque, no RefCell/Rc, no per-event allocation. Node trait, Ctx, firing policies, and the sim loop are deferred to subsequent cycles. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>