~x-ai/grok-latest → B (1:3)

Side B delivers a precise, lasting architectural foundation: a complete phased plan for structural ItemId (replacing stringly CanonicalItemUrl) plus the clean RouteContext wrapper and export that begins migratable href generation. Side A is a noisy bulk dump of prototype files (parser/reducer/ranking/vote plus .tdsl notes) that includes terminal garbage embedded in forms.rs and ranking.rs, making much of the large diff non-lasting churn rather than polished design.