Name the Kubernetes objects in English

catalogue-agent and approvisionnement-agent named a Deployment, a Service, an
Ingress and a Certificate in French, in an estate where nothing else is.

The peer URLs move with them, set through the existing per-environment override
so the rename takes effect without rebuilding an image; the defaults in the code
carry the same values for the next build.

The Keycloak client ids, the image names and the repository names are still
French. They are a separate, heavier move.

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

k8s/service.yaml

@@ -1,11 +1,11 @@
 apiVersion: v1
 kind: Service
 metadata:
-  name: catalogue-agent
+  name: catalog-agent
   namespace: agents
 spec:
   selector:
-    app: catalogue-agent
+    app: catalog-agent
   ports:
     - name: http
       port: 8080