Integrate v2 corrections addendum — ACL committed, schemas seed, cutover ownership

B1 resolved: ACL model designed and committed (decisions #129-132).
6-level scope hierarchy, NodePermissions bitmask, generation-versioned
NodeAcl table, Phase 1 ships before any driver phase. Updated goal-state
and roadmap.

B2 partially resolved: schemas repo seed exists at schemas/ (temporary).
FANUC CNC pilot class, JSON Schema format definitions, UNS subtree
example, docs. Still needs: owner team, dedicated repo, format ratification,
CI gate, consumer integration plumbing.

C5 resolved: consumer cutover OUT of OtOpcUa v2 scope (decision #136).
Integration/operations team owns cutover, not yet named. Plan updated
to explicitly assign ownership outside OtOpcUa.

CLAUDE.md updated with schemas/ in the file index.

CLAUDE.md

@@ -17,6 +17,7 @@ Plan content lives in markdown files at the repo root to keep it easy to read an
 
 - [`current-state/legacy-integrations.md`](current-state/legacy-integrations.md) — authoritative inventory of **bespoke IT↔OT integrations** that cross ScadaBridge-central outside ScadaBridge. Denominator for pillar 3 retirement.
 - [`goal-state/digital-twin-management-brief.md`](goal-state/digital-twin-management-brief.md) — meeting-prep artifact for the management conversation that turns "we want digital twins" into a scoped response. Parallel structure to `goal-state.md` → Strategic Considerations → Digital twin.
+- [`schemas/`](schemas/) — **Canonical OT equipment definitions seed** (temporary location — see `schemas/README.md`). JSON Schema format definitions, FANUC CNC pilot equipment class, UNS subtree example, and documentation. Contributed by the OtOpcUa team; ownership TBD. To be migrated to a dedicated `schemas` repo once created.
 
 ### Output generation pipeline