grace-refactor

<must_do>

• Resolve affected M-*, DF-*, and V-M-* anchors through .grace/graph/index.xml and .grace/verification/index.xml.
• Check active .grace/changes for scope overlap before editing.
• Preserve or update file-local LINKS:, module contracts, function contracts, and semantic blocks.
• Update durable graph and verification artifacts only when the refactor intentionally changes boundaries, paths, or evidence.
• Run targeted tests and grace lint --path <project-root> when available. </must_do>