[claude] Close duplicate PRs for issue #1336 (#1452) (#1456)

pr_cleanup_1452.md

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+# PR Cleanup: Issue #1336 Duplicate PRs
+
+## Summary
+
+Resolved duplicate PR situation for issue #1336 (Fix merge conflict artifacts).
+
+## Actions Taken
+
+- **PR #1438** — Left open as canonical fix for #1336
+- **PR #1406** — Closed as duplicate (with explanatory comment)
+- **PR #1402** — Closed as duplicate (with explanatory comment)
+- **Issue #1336** — Updated with cleanup status comment
+
+## Result
+
+One canonical PR (#1438) remains open for review and merge.
+
+Refs #1452