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Documents: - Phase 8: 5-day E2E test plan on entech-clone (snapshot, migration, audits, smoke tests, rollback test, sign-off criteria) - Phase 9: Cutover weekend runbook (Friday 6pm stop → Sunday buffer → Monday 7am operators back). 4 hours active work. - Phase 10: 2-week burn-in monitoring + rollback safety net + Day 14 snapshot drop. Bridge_mrp deprecation options. - Phase-end polish task list (deferred Minor items from Phase 1-7 reviews + the Phase 6 operator UI rewrite). - Communication templates (operator email, manager briefing). - Open decisions for user before Phase 9 starts. - File checklist confirming all Phase 1-7 deliverables present. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>