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

Side A adds a self-contained, well-designed URL canonicalization module (DFA graph + builder pattern) with exhaustive, meaningful test coverage and clear separation of concerns, representing focused lasting value. Side B is a sprawling refactor that collapses many typed REST endpoints into one large, undifferentiated RPC dispatcher (rpc.rs, ~1300 lines) and renames thread/room concepts throughout the codebase—functionally useful (rooms/capabilities) but mostly high-churn mechanical restructuring with reduced modularity and higher review/maintenance risk.