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

B is a substantial, coherent refactor that splits a monolithic forum.rs into focused modules (nav, ingest, room_members, new_thread, access) plus adds a useful diagnostic script, improving maintainability across the codebase. A is a single, useful randomized test validating rank-centrality convergence, which adds real verification value but is much narrower in scope and impact than B's structural improvement.