Deep Refactor

Audit-and-ship workflows for Claude Code: deep-refactor (codebase-wide audit, evidence-backed report, sequenced ticket train, PR drain preserving the test contract), test-refactor (per-suite test audit with production code frozen — dead-test deletion with evidence, parametrized merges, single-parallel-run isolation, per-module coverage parity), and doc-refactor (whole markdown surface audited with the source frozen — false claims first, deliberate replication kept in sync, generated docs never