Serve the infra tools on the real domain as well as nip.io

Each of these now answers on <name>.infra.deployshed.com alongside the
nip.io name it already had. Both are kept on purpose: nothing that
currently references the old name breaks, and the new one can be proved
before anything depends on it. Removing nip.io is a separate step, and a
larger one, because Harbor's name is embedded in every running app's image
reference.

TLS covers the real domain only. Let's Encrypt cannot issue for nip.io —
it is not on the public suffix list and every *.nip.io certificate shares
one rate limit — so a tls block naming both would request one certificate
spanning them and receive nothing for either. Each tls block therefore
lists exactly the one new hostname, which is why they are written out
rather than derived from the host list beside them.

The charts disagree about how to express a second host, so each is done
the way its own chart supports:

  gitea, grafana, vault, victoria-metrics-single take host lists, so the
  new name joins the existing one on a single Ingress.

  jenkins' primary ingress accepts exactly one hostName, so the new name
  goes on secondaryingress — a whole second Ingress object at the same
  backend. paths must be set explicitly there; left at the chart's default
  of [] it renders zero routes and the hostname answers nothing.

  argo-cd takes extraHosts natively, but its ingress.tls is a boolean bound
  to one fixed secret covering every host at once. Turning it on would
  request a certificate including nip.io and fail, and there is no extraTls
  to scope it. So ArgoCD gains the hostname now and its certificate when
  nip.io goes.

Harbor is untouched here. It has no multi-host mechanism at all, so its
second hostname needs a standalone Ingress, and its externalURL is what
docker clients are handed — both deserve their own change rather than
riding along with a hostname tidy-up.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LEsTefWWifp4ikvhHF5s6N

helm-overrides/gke-toolshed-prd-usc1/gitea/custom-values.yaml

@@ -80,12 +80,29 @@ gitea:
       email: "admin@local.lab"
 
   # Contour does not exist yet at bootstrap — the Ingress just sits unused
-  # until ArgoCD installs it. One host only: no Tailscale on GKE.
+  # until ArgoCD installs it.
+  #
+  # Two hosts while the deployment moves onto its own domain. The nip.io one
+  # stays until everything that references it has been repointed — ROOT_URL
+  # below, and any git remote anyone has configured.
   ingress:
     enabled: true
     className: contour
+    annotations:
+      # Issues the certificate named in tls below. Only the real domain is
+      # listed there: Let's Encrypt cannot issue for nip.io, and asking for
+      # one certificate spanning both names returns nothing for either.
+      cert-manager.io/cluster-issuer: letsencrypt-prod
     hosts:
       - host: gitea.35.238.248.203.nip.io
         paths:
           - path: /
             pathType: Prefix
+      - host: gitea.infra.deployshed.com
+        paths:
+          - path: /
+            pathType: Prefix
+    tls:
+      - secretName: gitea-tls
+        hosts:
+          - gitea.infra.deployshed.com