- ConfigManager.get_effective_domain(): returns domain_name when DDNS
active (pic_ngo/cloudflare/duckdns), domain otherwise. Used by all
public-facing services so they use the real registered FQDN.
- ConfigManager.get_internal_domain(): always returns _identity.domain
(CoreDNS zone name, dnsmasq, cell-link invites — stays internal).
- Silent migration: if domain_mode != lan and domain is generic "cell",
auto-set to {cell_name}.local for unique CoreDNS zone naming.
- caddy_manager: fix custom_domain bug — cloudflare/http01 modes were
reading identity.get('custom_domain') which never exists; now reads
domain_name correctly.
- routes/config, app: expose effective_domain in GET /api/config and
/api/status responses.
- email_manager, routes/email: use get_effective_domain() for
OVERRIDE_HOSTNAME, POSTMASTER_ADDRESS, and new-user email defaults.
- ServiceBus.IDENTITY_CHANGED event: emitted from PUT /api/config and
POST /api/ddns/register after identity writes; caddy_manager and
email_manager subscribe to regenerate config automatically.
- Settings.jsx: hide Local Domain input in non-LAN modes; show
read-only effective_domain with "managed by DDNS" badge and an
Advanced toggle for the internal CoreDNS zone name.
- 11 new test classes covering all new helpers, event subscriptions,
caddy/email handlers, and the custom_domain fix.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
roof