~anthropic/claude-sonnet-latest → A (65:35)

Side A introduces a complete, well-architected URL canonicalization subsystem (DFA-based graph, builder with build-time link validation, parser, generic fallback) backed by an extensive, meaningful test suite covering edge cases, equivalence classes, and regressions—this is substantial, reusable, correctly designed functionality. Side B is a smaller, more mixed change: it removes dead demo-counter code (good cleanup) and adds an async settlement/caching layer for votes, which is a reasonable concurrency improvement but narrower in scope and less self-contained than A's new subsystem.