~anthropic/claude-sonnet-latest → B (6:4)

Side B removes a fragile, incrementally-maintained cache (add/subtract/rollback edge-weight bookkeeping in GroupState) and replaces it with a single source of truth (uuid_votes) from which edges, components, and rankings are derived on demand—eliminating a whole class of state-drift/rollback bugs and simplifying the core ranking model with equivalent test coverage. Side A adds a legitimate new feature (Reddit OAuth linking) with sensible identity/privacy design, but it mostly extends existing patterns (mirroring GitHub OAuth) and adds a large amount of mock/test-harness boilerplate rather than fixing a structural weakness in the core system.