~anthropic/claude-sonnet-latest → B (60:40)

B is a small, precise real bugfix: it moves the zero-ratio guard before ensure_item/voted_pairs.insert, eliminating ghost items and incorrectly-marked-voted pairs, with an updated test proving the corrected behavior. A is a large refactor centralizing path/URL logic into slug-types, which is a reasonable architectural cleanup but is mostly code relocation with no new bug fixes, and duplicates/rewires existing tests rather than fixing a defect; its value is real but more about maintainability than correctness, and its size is due to churn rather than necessity.