openai/gpt-chat-latest → A (4:1)

Side A performs a substantial architectural consolidation by moving browser posting, checking, and redaction into a single `POST /ui` dispatch, introducing `resolve_web_session` to avoid repeated auth parsing, removing the separate `web_post` module, updating forms and tests to the new `__rpc__` flow, and preserving behavior through shared helpers. Side B is a useful configuration and portability fix—centralizing base URL resolution with `util/get-base-url`, using `window.location.origin`, and updating the deployment workflow—but its scope is limited to redirect/deployment correctness rather than a broad, lasting simplification of the application's request handling.