openai/gpt-chat-latest → B (9:1)

Side B adds substantive functionality and usability: it redesigns log scanning into a fast parse-only pass, exposes detailed DSL parse errors, introduces `compile --ingest` to replay state up to a specific event, extends CLI options, and adds tests and documentation for these behaviors. Side A is primarily a refactor that removes the old URL engine and redirects the registry to new `graph`/`parse` modules, but the actual implementation of those new modules is absent from the patch, so the visible lasting value is limited compared with B's concrete feature and tooling improvements.