openai/gpt-chat-latest → B (4:1)

Side B removes a redundant guard in the reducer based on documented upstream validation, preserving item and pair registration while relying on existing zero-weight edge handling, and updates tests to verify the intended behavior. Side A mainly simplifies the forum form UI by removing labels/toggle behavior and changing placeholder text/button wording, which is largely cosmetic and potentially reduces usability rather than adding durable functionality.