~anthropic/claude-sonnet-latest → B (3:2)

Side B fixes a real functional bug (Reddit children being imported without proper path wiring, causing incorrect tree structure) and also fixes unranked child labels to show titles instead of raw paths, with corresponding test updates verifying the fix. Side A is a solid but narrower UX fix (display_path in hrefs) plus a test rewrite, which is useful but less impactful than a genuine data-model correctness fix affecting import behavior.