type:forward zones are pure configuration (conditional forwarding), not
replicated data, so a resolver needs them on all pods. They were being
rndc-addzone'd on the primary only, so queries hitting a secondary pod
missed the forwarding. Render them into named.conf instead.
- render forward zones inside their view (or top-level when no views)
- BindCluster lists type:forward zones and watches BindZone to re-render
- BindZone controller skips forward zones (config-managed, no addzone)
- unit test for forward-zone-in-view rendering
unkinben