~anthropic/claude-sonnet-latest → B (80:20)

Side B fixes a real functional bug (Reddit children imports bypassing ensure_path and unranked labels showing raw IDs instead of titles) with corresponding source changes across multiple modules plus updated integration tests, delivering concrete lasting behavior fixes. Side A is a small config-only simplification of test discovery (tests.edn) that improves maintainability but has no functional or bug-fixing impact.