~x-ai/grok-latest → A (2:1)

Commit A redesigns the core vote model (GroupState → ScopeVotes), dropping maintained edges/idx maps/rollback paths so ranking and pair logic derive weights from uuid_votes on demand across reducer, ranking, storage, and UI. Commit B adds a solid URL DFA/canonicalization stack with tests, but it is new peripheral infrastructure rather than a lasting simplification of the project's central ranking state.