~x-ai/grok-latest → A (5:1)

Commit A redesigns core ranking state (GroupState → ScopeVotes), dropping cached edges/indexes and rebuilding weights/components only at rank time across reducer, ranking, storage, and UI paths—a lasting correctness and simplicity win. Commit B only extracts duplicated babashka test helpers (HTTP, mock OAuth, asserts, cargo env) into shared modules with no production behavior change.