feat: Move cluster services to wild-directory as unified packages

Convert all 15 cluster services from embedded API format to
wild-directory packages using the unified manifest format:
- metallb, traefik, cert-manager, longhorn, snapshot-controller
- nfs, smtp, coredns, node-feature-discovery, nvidia-device-plugin
- externaldns, docker-registry, headlamp, crowdsec, utils

Changes:
- wild-manifest.yaml → manifest.yaml with is, defaultConfig, requires
- Eliminated configReferences and serviceConfig fields
- Flattened kustomize.template/ to package root
- Template vars use flat defaultConfig keys
- install.sh paths updated for apps/ layout
- Updated 9 app manifests: cloud.smtp.* → apps.smtp.* with requires
- Removed dead install: true field from 6 app manifests

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

traefik/deployment.yaml

@@ -0,0 +1,145 @@
+---
+# Source: traefik/templates/deployment.yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: traefik
+  namespace: traefik
+  labels:
+    app.kubernetes.io/name: traefik
+    app.kubernetes.io/instance: traefik-traefik
+    helm.sh/chart: traefik-36.1.0
+    app.kubernetes.io/managed-by: Helm
+  annotations:
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: traefik
+      app.kubernetes.io/instance: traefik-traefik
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxUnavailable: 0
+      maxSurge: 1
+  minReadySeconds: 0
+  template:
+    metadata:
+      annotations:
+        prometheus.io/scrape: "true"
+        prometheus.io/path: "/metrics"
+        prometheus.io/port: "9100"
+      labels:
+        app.kubernetes.io/name: traefik
+        app.kubernetes.io/instance: traefik-traefik
+        helm.sh/chart: traefik-36.1.0
+        app.kubernetes.io/managed-by: Helm
+    spec:
+      serviceAccountName: traefik
+      automountServiceAccountToken: true
+      terminationGracePeriodSeconds: 60
+      hostNetwork: false
+      containers:
+      - image: docker.io/traefik:v3.4.1
+        imagePullPolicy: IfNotPresent
+        name: traefik
+        resources:
+        readinessProbe:
+          httpGet:
+            path: /ping
+            port: 8080
+            scheme: HTTP
+          failureThreshold: 1
+          initialDelaySeconds: 2
+          periodSeconds: 10
+          successThreshold: 1
+          timeoutSeconds: 2
+        livenessProbe:
+          httpGet:
+            path: /ping
+            port: 8080
+            scheme: HTTP
+          failureThreshold: 3
+          initialDelaySeconds: 2
+          periodSeconds: 10
+          successThreshold: 1
+          timeoutSeconds: 2
+        lifecycle:
+        ports:
+        - name: metrics
+          containerPort: 9100
+          protocol: TCP
+        - name: traefik
+          containerPort: 8080
+          protocol: TCP
+        - name: web
+          containerPort: 8000
+          protocol: TCP
+        - name: websecure
+          containerPort: 8443
+          protocol: TCP
+        securityContext:
+          allowPrivilegeEscalation: false
+          capabilities:
+            drop:
+            - ALL
+          readOnlyRootFilesystem: true
+        volumeMounts:
+          - name: data
+            mountPath: /data
+          - name: tmp
+            mountPath: /tmp
+          - name: plugins-storage
+            mountPath: /plugins-storage
+          - name: crowdsec-bouncer-key
+            mountPath: /etc/traefik/crowdsec
+            readOnly: true
+        args:
+          - "--global.checkNewVersion"
+          - "--experimental.plugins.bouncer.moduleName=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
+          - "--experimental.plugins.bouncer.version=v1.4.2"
+          - "--entryPoints.metrics.address=:9100/tcp"
+          - "--entryPoints.traefik.address=:8080/tcp"
+          - "--entryPoints.web.address=:8000/tcp"
+          - "--entryPoints.websecure.address=:8443/tcp"
+          - "--api.dashboard=true"
+          - "--ping=true"
+          - "--metrics.prometheus=true"
+          - "--metrics.prometheus.entrypoint=metrics"
+          - "--providers.kubernetescrd"
+          - "--providers.kubernetescrd.allowEmptyServices=true"
+          - "--providers.kubernetesingress"
+          - "--providers.kubernetesingress.allowEmptyServices=true"
+          - "--providers.kubernetesingress.ingressendpoint.publishedservice=traefik/traefik"
+          - "--providers.kubernetesgateway"
+          - "--providers.kubernetesgateway.statusaddress.service.name=traefik"
+          - "--providers.kubernetesgateway.statusaddress.service.namespace=traefik"
+          - "--entryPoints.websecure.http.tls=true"
+          - "--accesslog=true"
+          - "--accesslog.format=json"
+          - "--log.level=INFO"
+
+        env:
+          - name: POD_NAME
+            valueFrom:
+              fieldRef:
+                fieldPath: metadata.name
+          - name: POD_NAMESPACE
+            valueFrom:
+              fieldRef:
+                fieldPath: metadata.namespace
+      volumes:
+        - name: data
+          emptyDir: {}
+        - name: tmp
+          emptyDir: {}
+        - name: plugins-storage
+          emptyDir: {}
+        - name: crowdsec-bouncer-key
+          secret:
+            secretName: crowdsec-bouncer-secret
+            optional: true
+      securityContext:
+        runAsGroup: 65532
+        runAsNonRoot: true
+        runAsUser: 65532