Add a section covering cert issuance, the localhost CADDY_HTTP_PORT bind, the
caddy/static/distribution compose bring-up, and rendering/installing
nginx/ulicraft-caddy.conf.tmpl. Note DISTRIBUTION_WEB_ROOT.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
dns-records.sh <mode> hosts prints a marker-wrapped /etc/hosts block to pipe
into /etc/hosts (single-machine testing without a DNS server). README documents
apply/remove + the airgap caveat (spoof hosts break real internet while present).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>