openai/gpt-chat-latest → A (4:1)

Side A resolves a structural correctness issue by removing the duplicate `server/src/html/forum.rs` module, adding `forum/mod.rs`, and making the split `forum/` directory the single module root. This eliminates ambiguous module resolution and consolidates the existing implementation into a maintainable layout, whereas Side B mainly adds UI enhancements (HUD unpin button, vote counts/tooltips, CSS, and tests) without addressing a foundational project structure problem.