openai/gpt-chat-latest → A (10:1)

Commit A introduces a substantial new feature set spanning the CLI, server API, authentication flow, RPC layer, state management, reducer, shared types, routing, and integration tests. It implements shareable room invite links with redemption during OAuth, room auditing, multi-capability grants, new RPC commands and responses, thread timeline support, new routes, state structures, and comprehensive end-to-end tests. Although some event types appear only partially integrated, the overall change is a large architectural addition. Commit B is a focused usability improvement that makes pinned icons in ranked child groups clickable for unpinning, updates styling, threads a new parameter through rendering, and extends browser tests. It is a valuable UX enhancement but far smaller in scope and impact than the broad invitation and room management system introduced in Commit A.