~x-ai/grok-latest → A (3:1)

A removes the leftover 1400-line monolithic forum.rs so forum/mod.rs is the unambiguous module root and splits the real handlers (feed, views, paginator, morph, profile, etc.) into lasting structure. B only deletes ExpandNewThreadForm and the home toolbar +, SSR-ing #new-thread-ui-slot like rooms—a smaller consistency cleanup on one compose path.