~x-ai/grok-latest → A (4:1)

A removes an ~1800-line unreliable keystroke graph parser, parser_action, race-handling JS, and Playwright race test, replacing them with a small correct paste-and-go URL parser and redirect that still covers real Reddit paths. B only threads CanonicalItemUrl and adds Deref on href newtypes—useful type hygiene without changing product behavior—so the design simplification and bug-class removal in A carry more lasting value.