# Sprint 219 Plan: Migration/Rollback Contract Hardening

## Goal
Ensure migration category tasks require rollback and data-safety declarations.

## Steps
- Step 2134: Enforce `migration.rollback_required=true` for migration category.
- Step 2135: Validate data-loss prohibition contract for migration tasks.
- Step 2136: Emit migration contract blocker reason classes.
- Step 2137: Add migration contract coverage metrics.
- Step 2138: Add `Sprint219IntegrationSummary.h`.