~anthropic/claude-sonnet-latest → A (6:4)

Side A replaces an ad-hoc, per-domain if/else URL normalizer with a cleaner, more principled graph-based parser (DFA + generic fallback), improving the actual product's core canonicalization logic while preserving test coverage intent. Side B is mostly internal admin/debug page cleanup (removing legacy projection code paths and adjusting tests/docs), which is useful maintenance but lower-impact and more narrowly scoped to internal tooling.