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

Side A implements a meaningful identity-model change (UUID as canonical principal, multi-provider linking with conflict handling, privacy semantics) plus a full Reddit OAuth integration, backed by updated docs, mock servers, and unit tests validating trust-weight and link-owner behavior. Side B adds a useful but narrower UX feature (pool-scoped vote pairing) with reasonable but smaller-scope changes and no new tests, making it valuable but less foundational than A's identity/auth rework.