Code and project review

Covers reviewing existing code and whole projects, not just new diffs: structured codebase audits that produce ranked findings and then implement the agreed improvements, recurring project reviews after major tasks and milestones, review scoping by risk and tier, and turning review findings into tracked work and lessons. Use PROACTIVELY after major tasks and milestones, and when the user asks for a code review, codebase audit or health check of existing code, wants improvements suggested and applied, mentions reviewing the project after a milestone or before a release or submission, or when inherited or long-unreviewed code needs a structured pass. For diff-time pre-revie…