audit(0093): cycle close — sweep-from-blueprint; ledger refreshed, debt filed; rm ephemeral spec/plan

Cycle-close drift review (architect) for cycle 0093 / #166 (aura sweep
<blueprint.json>). Drift-found on debt only; no contract violation.

What holds (architect, evidence of review): invariant 9 fail-clean (resolve_axes
runs before the sweep closure → named BindError UnknownKnob/MissingKnob/KindMismatch,
exit 2; UnknownNodeType on load; no registry); C1/C12/C18 shape verbatim from
stage1_r_sweep_family (members disjoint + enumeration-ordered; shared topology_hash
correct, consistent with the cycle-1 #158 signal-only scope; append_family/
sweep_member_reports reused); reload-per-member is sound (Composite !Clone, #164);
stdout uses family_member_line with family_id, run_sweep-consistent.

Resolved: ledger refreshed (C24 Status — the cycle-0093 realization: the World now
orchestrates FAMILIES from blueprint-data; the open-vs-bound fixture fact + the
reload-per-member rationale recorded). Drift filed forward: #168 (--trace writes no
per-member traces — silently like --name, debt-med), #169 (no axis-name discovery
for loaded sweeps, debt-low), #170 (MC/walk-forward over a loaded blueprint — the
next family-verb cycle, assigned to the milestone).

Ephemeral 0093 spec + plan git-rm'd per the lifecycle convention.

closes #166

docs/design/INDEX.md

@@ -1847,6 +1847,22 @@ over the same signal (a behaviour-preserving C19/C23 restructure). Scope note: t
 covers the **signal** only (the fixed scaffolding is identified by `commit`); a content-id
 distinguishing harness-structural variants is a #158/#166 concern once scaffolding varies.
 
+**Realization (2026-07-01, cycle 0093 — the World orchestrates FAMILIES from blueprint-data,
+#166).** `aura sweep <blueprint.json> --axis <name>=<csv>` loads an **open** signal blueprint,
+grids the by-name axes against its `param_space()`, builds each member through cycle-1's
+`wrap_stage1r` seam, and aggregates to a `FamilyKind::Sweep` family — byte-identical in shape
+to the hard-wired sweep (`append_family` / `sweep_member_reports` reused verbatim). This is the
+C21 step beyond a single run: the World now constructs and orchestrates **families** of
+harnesses from topology-data, not just one. Each member manifest carries the **shared**
+`topology_hash` (one signal topology, only params vary; `member_key` distinguishes members) —
+reproducible per C18. Two design facts: a sweep needs an **open** blueprint (a fully-bound one
+has an empty `param_space`, distinct from cycle-1's bound run fixture), and the signal is
+**re-loaded per member** from its serialized doc (the `Composite` is `!Clone` — its
+`PrimitiveBuilder`s hold `Box<dyn Fn>` build closures, #164 — and `bootstrap_with_cells`
+consumes the graph). Monte-Carlo / walk-forward over a loaded blueprint are the same machinery
+per verb (a tracked follow-on); per-member trace-writing on `--trace` and an axis-name
+discovery surface are tracked debt.
+
 **Deferred to the World / project-as-crate cycle**: **full** content-addressed
 reproduction (#158, C18) — the `topology_hash` field landed cycle 0092; what remains is
 re-deriving the FlatGraph from a stored manifest and a content-id that covers