openai/gpt-chat-latest → A (20:1)

Side A makes a substantive storage design change by replacing the durable recent-votes deque with an append-only list, removing post-commit trimming, updating schema versioning, adapting in-memory state, and adding a regression test that verifies query-time capping. Side B only removes client-side validation attributes from a single HTML form, a small UI simplification with far less lasting architectural impact.