Filter publication record names before sorting directory results

docs/roadmap/remediation.md

@@ -456,6 +456,11 @@ with a controlled error; repository production and test files were unchanged.
 
 ## R11: Filter directory entries before ordering them — P3
 
+**Completed:** Discovery filters unsorted directory batches and sorts selected
+record paths once. Directory work is `O(D + R log R)` with bounded intermediate
+entry storage. Mixed-directory, ordering, and cancellation regressions passed.
+R13 addresses preservation of records alongside enumeration failures.
+
 **Relevant code:** `internal/publish/attempts.go:41` through the subsequent
 filter and `sort.Strings(paths)`.