openai/gpt-5.2-chat → B (3:1)

Side B makes a deeper architectural change to the server’s persistence and reducer model: replacing a Deque with an append-only List, shifting the vote cap from write-time to query-time, removing trimming logic, bumping the schema version, updating projection application, and adding a non-trivial test to validate the new behavior. This affects storage schema, reducer logic, projection flow, and durability semantics. Side A adds a useful CLI formatting helper and tests, but it is a localized, presentation-layer enhancement. Overall, Side B has significantly broader and more structural impact.