~x-ai/grok-latest → A (2:1)

A adds lasting product capability (child vote CTA, /vote flow, preference slider JS/CSS) plus reusable typed `$form:i32` substitution and a `next` redirect on record_vote, with tests. B is a worthwhile consolidation—folding web_post into POST /ui, WebSession, and __rpc__ forms—but mostly relocates existing ingest/check/redact behavior rather than net-new design or fixes.