openai/gpt-chat-latest → B (1:4)

Side B fixes functional behavior in multiple places: it corrects Reddit child imports by attaching imported entities under the intended parent without path expansion, updates the ranking panel to display imported child titles using tree data, and adds integration test coverage for both self and children fetch flows. Side A improves test configuration by replacing manually enumerated Kaocha suites with automatic discovery, reducing maintenance, but it is primarily a tooling/configuration improvement rather than a runtime correctness fix.