openai/gpt-chat-latest → A (5:1)

Side A introduces substantive functionality: typed form-template substitution for `i32` fields with tests, adds a `next` navigation field to vote handling, wires a new `/vote` route and vote entry point, and updates the client to support vote sliders and redirects. Side B is primarily a UI simplification that removes the `ExpandNewThreadForm` action and replaces a toolbar with server-rendered content, improving flow but mostly deleting and reorganizing existing behavior rather than adding lasting capabilities.