Add an opt-in Gateway API HTTPRoute template to the Helm chart as an
alternative to the existing Ingress, addressing #9942. It is disabled by
default (httpRoute.enabled: false) so existing installs are unaffected.
The template mirrors the existing ingress.yaml conventions: the
pgadmin4.fullname backend, commonLabels/commonAnnotations propagation, and
a hostname that falls back to ingress.hostname when httpRoute.hostnames is
unset. parentRefs is required (a fail guard fires when it is empty),
apiVersion defaults to gateway.networking.k8s.io/v1, and the default rule
forwards "/" (PathPrefix) to the pgAdmin service. Custom hostnames and
rules can be supplied for full control. The new values are documented in
the chart README.
Martin Manka
somaz
David Aparicio
Nicolas Boulard
Koren Peretz