Cache rule on www.phasefinal.com with edge and browser TTL both respect_origin,
so cache policy stays declared once in nginx.conf rather than split between the
repo and the dashboard. Always Online enabled, which is what actually survives
an origin outage; a 300s document TTL alone would only mask five minutes.
Verified: document and assets both reach cf-cache-status HIT, apex 301s to www,
edge email obfuscation active.
