feat: monitoring — Ingress Prometheus et AlertManager (traefik, lab.local)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

k8s/infra/monitoring/values.yaml

@@ -20,6 +20,12 @@ grafana:
     size: 2Gi
 
 prometheus:
+  ingress:
+    enabled: true
+    ingressClassName: traefik
+    hosts:
+      - prometheus.lab.local
+
   prometheusSpec:
     retention: 15d
     retentionSize: "8GB"
@@ -86,6 +92,12 @@ prometheus:
               type: cpu
 
 alertmanager:
+  ingress:
+    enabled: true
+    ingressClassName: traefik
+    hosts:
+      - alertmanager.lab.local
+
   alertmanagerSpec:
     resources:
       requests: