openai/gpt-chat-latest → A (4:1)

Side A fixes concrete correctness issues in Reddit imports by adding `apply_entity_under_parent` to avoid incorrect `/comments/` path nesting, preserving imported entity data, and updating the ranking panel to display child titles from the global tree instead of raw IDs. It also updates the affected UI call sites and adds integration tests covering SSE updates, child fetches, and import behavior, whereas Side B is a large UI/auth expansion with substantial architectural churn and documentation but a generic commit message and less clearly bounded, correctness-focused value.