phase 16 implementation

docs/phase16/CDN_CACHING_VALIDATION_REPORT_v1.0.md

@@ -0,0 +1,11 @@
+# CDN and Caching Validation Report
+
+## Decision
+
+**Blocked pending evidence**
+
+Not executed. No CDN or deployment endpoint was supplied. Locale cache isolation, HTML policy, immutable assets, purge behavior, rollback compatibility, and sensitive-response caching remain blocked.
+
+## Release impact
+
+Launch remains withheld. No exception is accepted.