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

B removes actual dead/redundant logic in production Rust code and updates the corresponding test to correctly verify the new invariant (items still registered, edges skipped), representing a real behavioral cleanup with verification. A is a config-only change unifying kaocha test suites, which is convenient but purely infrastructural and lower-risk/lower-value than fixing incorrect logic and test assertions in the core reducer.