openai/gpt-chat-latest → A (3:1)

Side A makes a substantial architectural change by shifting identity to UUIDs with OAuth account linking, adding Reddit OAuth support, handling link conflicts, exposing linked providers privately, updating routing, storage queries, and fixing trust-weight projection batching with pending in-batch state. Side B adds a useful pool-scoped voting workflow and UI context propagation, but it is a narrower feature layered onto existing voting rather than a cross-cutting identity and authentication redesign.