++ sarex-contour: control-interface

apps/control-interface/sarex-contour наследует base (по образцу
d8-ugmk-prod), namespace control-interface, istio-injection: enabled.
Оверлей yc-k8s-test для control-interface не копировали — там
namespace: django и патч на несуществующий HelmRelease srx-admin,
похоже на скопипащенный мёртвый код из apps/django/yc-k8s-test.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/control-interface/sarex-contour/kustomization.yaml

@@ -0,0 +1,7 @@
+---
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: control-interface
+resources:
+  - ../base
+  - namespace.yaml

apps/control-interface/sarex-contour/namespace.yaml

@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: control-interface
+  labels:
+    istio-injection: enabled

clusters/sarex-contour/kustomization.yaml

@@ -9,3 +9,6 @@ resources:
   - ../../infrastructure/istio-pilot/sarex-contour
   - ../../infrastructure/istio-gateway/sarex-contour
   - ../../infrastructure/vault/sarex-contour
+
+# apps
+  - ../../apps/control-interface/sarex-contour