~anthropic/claude-sonnet-latest → A (3:1)

Side A performs a substantive refactor of forum.rs into focused submodules (access.rs, ingest.rs, nav.rs, new_thread.rs, room_members.rs), improving code organization and maintainability of real application logic, plus adds a useful diagnostic tool (sample-fixture). Side B only edits documentation/plan text files (DSL.txt, GUIDE.sorter, plan.md) with no code changes, which is lower-impact churn on prose rather than lasting code structure improvement.