Honor parsed sequence indexes in version protections

docs/roadmap/remediation.md

@@ -124,7 +124,13 @@ appends do not falsely claim to change earlier records.
 
 ## 4. Honor contextual parsed version-path indexes — P2
 
-- [ ] Addressed and regression-tested.
+- [x] Addressed and regression-tested.
+
+Completion: protected-path sequence traversal uses the existing canonical
+contextual index interpreter. Public import and grouped-underlay parity tests
+cover parsed and explicitly indexed rules; existing version-path tests preserve
+numeric-key intent and invalid index behavior. Focused tests and the everyday
+check passed.
 
 **Owner:** `fragmentVersionClaimProjected` in
 [directives.go](../../internal/engine/directives.go), lines 190–194.