chore(phase6): temp-defer oauth2-proxy until its SOPS secret is provisioned

oauth2-proxy's HelmRelease mounts existingSecret oauth2-proxy-credentials, an operator
hand-off not yet filled. Under the unified graph (platform wait:true), the not-ready HR
blocks platform -> platform-config -> the whole downstream graph including KubeVirt.
Deferring it (comment its line in platform/kustomization.yaml + its two entries in
platform-config) lets the no-secret components (KubeVirt/CDI, CNPG, Keycloak operator +
instance) reconcile and be certified now. Re-enable both together once the operator fills
platform/oauth2-proxy/oauth2-proxy-credentials.sops.yaml.

Serves: R-IDP-02 (deferred). PM sequencing correction — enable per phase AND readiness.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

platform-config/kustomization.yaml

@@ -50,7 +50,9 @@ resources:
   - ../platform/keycloak/httproute.yaml
   - ../platform/keycloak/servicemonitor.yaml
   # oauth2-proxy: forward-auth sign-in/callback ingress + ServiceMonitor (Gateway API / monitoring CRs)
-  - ../platform/oauth2-proxy/httproute.yaml
-  - ../platform/oauth2-proxy/servicemonitor.yaml
+  # TEMP-DEFERRED with the oauth2-proxy HelmRelease (see platform/kustomization.yaml) — re-enable both
+  # together once the operator provisions oauth2-proxy-credentials.
+  # - ../platform/oauth2-proxy/httproute.yaml
+  # - ../platform/oauth2-proxy/servicemonitor.yaml
   # monitoring SSO proof: Grafana native-OIDC login ingress (Gateway API CR)
   - ../platform/monitoring/grafana-httproute.yaml