Brownfield Retrospective Run ECC's engineering process retroactively against a project that was built without it. Pick any slice of an existing codebase, audit what exists, reconstruct how it got there, extract a four-axis gap register, then execute the fixes forward through the standard ECC pipeline. The workflow is slice-first: no whole-repo onboarding is required before it is useful, and every phase is re-enterable from a durable artifact on disk. Start in the middle, work backwards, then move forward. When to Activate - Adopting ECC in a repository that already exists and is already shape…