openai/gpt-chat-latest → B (20:1)

Commit B introduces a substantial architectural change around URL canonicalization. It adds a new URL normalization subsystem (`url_rules`), integrates it into `ItemId`, updates parsing, parent/breadcrumb logic, Reddit URL handling, projection application, state validation, and adds a new dependency plus extensive test updates. It also changes the project's canonical identifier format to full HTTPS URLs and touches many core components. By contrast, commit A is a tiny HTML tweak that changes a disabled paginator control from a `<span>` to an anchor with `href="#"`, a localized UI adjustment with minimal impact.