openai/gpt-5.2-chat → B (1:20)

Side A merely deletes a single test (`parse_full_keeps_quoted_thread_title_statement_as_prose`), reducing coverage without improving functionality. Side B introduces a full pairwise vote compare feature (new `vote.rs`, `pair.rs` with bridge-prioritized selection logic, UI morphing via `vote_recorded_morph`), improves ID normalization with `ItemId::from_storage` integrated into reducer/state, and adds integration and unit tests—substantial, lasting functionality and correctness improvements.