phase 16 implementation

docs/phase15/ROLLBACK_REHEARSAL_REPORT_v1.0.md

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+# Phase 15 Rollback Rehearsal Report
+
+**Date:** 2026-06-25  
+**Status:** Documented concept; not rehearsed
+
+## Summary
+
+The public demo and analytics can be disabled through existing flags, and production defaults are blocked. No platform rollback was executed.
+
+## Executed evidence
+
+- Feature-flag inventory and Phase 14 rollback guidance reviewed.
+
+## Unexecuted or blocked evidence
+
+- Restore previous release, disable CRM/scheduler/analytics independently, verify no resend, stale secret handling, fallback UX, timing, owner confirmation.
+
+## Release disposition
+
+Rollback readiness is unproven.