openai/gpt-chat-latest → A (4:1)

Side A delivers a substantial end-to-end feature: shareable room invites with redemption integrated into OAuth, new RPCs for minting invites and auditing grants, CLI support, server routes, state management, API/type updates, and an integration test covering the full lifecycle. Side B introduces a well-tested URL canonicalization graph and parsing framework, but it is largely an internal infrastructure refactor with limited visible functionality compared with the broad user-facing access-control workflow added in Side A.