Clarify filesystem directive and override ownership

docs/roadmap/remediation.md

@@ -249,7 +249,16 @@ borrowed values or reread the environment. Run race tests for this unit.
 
 ## Stage 6 — Clarify source assembly and override ownership
 
-Status: pending.
+Status: complete.
+
+Completion: filesystem context/canonicalization/containment moved to
+`filesystem.go`; directive parsing and restrictions moved to `directives.go`;
+input node counting now shares the document owner with explicit key accounting.
+Override preparation, parser-neutral value building, and application are separate;
+profile and CLI application share the composition clone. Deferred profile cleanup
+preserves primary failures and explicitly checks the success-path close once.
+Full offline tests, vet, build, and whitespace checks passed with Go 1.26.7 on
+Linux/amd64, including imports/globs, profiles, CLI, limits, and provenance.
 
 Evidence: [imports.go](../../imports.go) mixes filesystem context, directives,
 graph traversal, and diagnostics; [override.go](../../override.go) combines value