~anthropic/claude-sonnet-latest → B (6:4)

Side B fixes a real bug (imported Reddit children were mis-wired via ensure_path, and unranked child labels showed raw slugs instead of titles), with a targeted reducer API change and updated integration tests covering the fix. Side A is a reasonable feature addition (room create CLI + simplifying visibility away) but is more speculative scaffolding/simplification with less evidence of fixing a concrete defect, and removes visibility handling that may reduce flexibility without clear justification.