feat: resolve accountability ownership reviews

workplans/RAIL-FAB-WP-0018-accountability-root-discovery-update-loop.md

@@ -183,7 +183,7 @@ Result:
 
 ```task
 id: RAIL-FAB-WP-0018-T04
-status: todo
+status: done
 priority: high
 state_hub_task_id: "670be2c2-6bec-4534-ae6a-ab0186ce0a8d"
 ```
@@ -205,6 +205,28 @@ Done when:
 - unresolved or ambiguous nodes are visible before promotion;
 - review decisions survive ordinary rescans.
 
+Result:
+
+- Added `schemas/accountability-ownership-review.schema.yaml` for ownership
+  resolution and review-blocker payloads.
+- Added `build_ownership_review()` to resolve explicit owners, inherit owners
+  from fabric/subfabric containment, flag unresolved ownership, flag unknown or
+  ambiguous containment, and surface ambiguous owner evidence.
+- Extended `AccountabilityEvidenceStore` with durable review decisions keyed by
+  stable identity candidate key.
+- Added `railiance-fabric discover-roots --ownership-review` and
+  `railiance-fabric review-identity` so operators can inspect blockers and
+  persist accept/needs-review/reject decisions across rescans.
+- Added tests proving ambiguous ownership is visible, review decisions can
+  accept a stable identity, decisions survive a later ownership-review run, and
+  accepted items cannot silently lack a resolved owner.
+- Documented ownership review and reviewer decisions in the manifest and
+  operator docs.
+- Verified with
+  `python3 -m pytest tests/test_accountability_roots.py tests/test_accountability_root_adapters.py -q`,
+  `python3 -m railiance_fabric.cli discover-roots --max-items-per-root 5 --ownership-review --store-db /tmp/railiance-root-ownership.sqlite3`,
+  and full `python3 -m pytest`.
+
 ## T05 - Implement Snapshot Deltas And Freshness Triggers
 
 ```task