~x-ai/grok-latest → B (5:1)

B redesigns the core DSL so vote explanations lead and item bodies trail paths, rewriting the parser (block-prefixed votes, pending-block handling) and aligning docs, UI emit paths, and fixtures—lasting product grammar. A only tightens ratio bounds (≥1, ≤100) in parser/UI/reducer with tests; correct and useful, but a narrow validation fix atop existing semantics.