FEAT(repo): add uptime kuma for service monitoring

- Add Uptime Kuma Helm chart deployment (dirsigler/uptime-kuma v2.24.0)
- Configure ingress for kuma0213.kro.kr
- Enable ServiceMonitor for Prometheus integration
- Use local-path storage class with 1Gi

uptime-kuma/argocd.yaml

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+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: uptime-kuma
+  namespace: argocd
+  finalizers:
+  - resources-finalizer.argocd.argoproj.io
+spec:
+  project: default
+  sources:
+  - repoURL: https://dirsigler.github.io/uptime-kuma-helm
+    chart: uptime-kuma
+    targetRevision: 2.24.0
+    helm:
+      valueFiles:
+      - $values/uptime-kuma/helm-values.yaml
+  - repoURL: https://github.com/K3S-HOME/monitoring.git
+    targetRevision: main
+    ref: values
+  - repoURL: https://github.com/K3S-HOME/monitoring.git
+    targetRevision: main
+    path: uptime-kuma
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: uptime-kuma
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+      allowEmpty: false
+    syncOptions:
+    - CreateNamespace=true
+    - PrunePropagationPolicy=foreground
+    - PruneLast=true
+    retry:
+      limit: 5
+      backoff:
+        duration: 5s
+        factor: 2
+        maxDuration: 3m
+    managedNamespaceMetadata:
+      labels:
+        goldilocks.fairwinds.com/enabled: 'true'
+  revisionHistoryLimit: 10

uptime-kuma/helm-values.yaml

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+image:
+  tag: "1"
+
+service:
+  type: ClusterIP
+  port: 3001
+
+persistence:
+  enabled: true
+  size: 1Gi
+  storageClass: "local-path"
+  accessMode: ReadWriteOnce
+
+resources:
+  requests:
+    cpu: 50m
+    memory: 128Mi
+  limits:
+    memory: 256Mi
+
+livenessProbe:
+  enabled: true
+  initialDelaySeconds: 180
+
+readinessProbe:
+  enabled: true
+  initialDelaySeconds: 10
+
+serviceMonitor:
+  enabled: true
+  namespace: prometheus
+  interval: 60s

uptime-kuma/ingress.yaml

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+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: uptime-kuma-ingress
+  namespace: uptime-kuma
+  annotations:
+    cert-manager.io/cluster-issuer: "letsencrypt-prod"
+spec:
+  ingressClassName: traefik
+  tls:
+  - hosts:
+    - kuma0213.kro.kr
+    secretName: uptime-kuma-tls
+  rules:
+    - host: kuma0213.kro.kr
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: uptime-kuma
+                port:
+                  number: 3001

uptime-kuma/kustomization.yaml

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+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - ingress.yaml