Add VictoriaMetrics observability stack + sync catalog for monitoring test

- VM stack 10 charts: victoria-metrics-cluster/auth, victoria-logs-cluster,
  victoria-metrics-agent/alert, opentelemetry-collector, kube-state-metrics,
  prometheus-node-exporter, alertmanager, perses (JWT/OIDC, Infisical-ready)
- ArgoCD ApplicationSet (syncWave) + per-chart dip-values overlays
- doc/victoria-metrics-architecture.md, define-chart-resources updates
- includes pending working-tree changes (mlflow, kubeflow, apisix, CLAUDE.md)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

manifests/applicationset/victoria-metrics/1.0.0/perses-values.yaml

@@ -0,0 +1,34 @@
+# 환경 오버레이 — perses/0.21.0/custom-values.yaml 위에 적용
+# 환경별: OIDC issuer/redirect_uri, ingress(베이스에 없음 → 추가), client_secret(Infisical).
+# dip-console이 $VAR를 Infisical/환경값으로 렌더해 값 repo에 커밋한다.
+# (Helm 배열 교체: config.security.authentication.providers.oidc 전체 재정의)
+
+config:
+  security:
+    enable_auth: true
+    authentication:
+      providers:
+        oidc:
+          - slug_id: keycloak
+            name: Keycloak
+            client_id: perses
+            client_secret: "$INFISICAL_PERSES_CLIENT_SECRET"   # Infisical 출처(평문 커밋 금지)
+            issuer: "$KEYCLOAK_URL/realms/$KEYCLOAK_REALM"
+            redirect_uri: "https://perses.$DOMAIN/api/auth/providers/oidc/keycloak/callback"
+            scopes: [openid, profile, email]
+
+# 외부 노출 (베이스 custom-values엔 ingress 없음)
+ingress:
+  enabled: true
+  ingressClassName: "apisix"
+  annotations:
+    cert-manager.io/cluster-issuer: "root-ca-issuer"
+  hosts:
+    - host: "perses.$DOMAIN"
+      paths:
+        - path: /
+          pathType: Prefix
+  tls:
+    - secretName: perses-tls
+      hosts:
+        - "perses.$DOMAIN"