openai/gpt-chat-latest → B (9:1)

Side B implements substantial new functionality: a background Reddit import system with request queuing, OAuth support, rate-limit handling, JSON parsing, integration into application state and request flow, plus unit tests for URL mapping and parsing. Side A only changes Kaocha configuration from manually enumerated test namespaces to a single auto-discovered suite, which improves maintainability but does not add comparable runtime capability.