Add media-apps stack to ArgoCD

Why:
The media stack (jellyfin plus the sonarr/radarr/prowlarr/bazarr/nzbget/
jellyseerr apps) runs in the media-apps namespace but is deployed out-of-band
by terraform-k8s rather than GitOps. Bringing it under ArgoCD makes the stack
declarative, self-healing, and consistent with every other cluster workload,
and prepares terraform-k8s to drop the media-apps config.

How:
- Add a media AppProject scoped to the media-apps namespace and a media-apps
  ApplicationSet that renders one Application per app plus a shared foundation.
- Add a shared media-apps foundation (namespace, media-apps-vault-reader
  ServiceAccount, default VaultAuth on k8s/au/syd1, and the RWX movies/tvseries
  library PVCs) that the whole stack mounts.
- Add per-app kustomize base and au-syd1 overlay for jellyfin and the six *arr
  apps, using plain resource names (jellyfin, sonarr, ...) with fresh PVCs.
- Deploy jellyfin from the jellyfin-ha fork (Redis transcode store, RWX
  transcode scratch) wired to the shared movies/tvseries library PVCs, keeping
  the intel iGPU nodeSelector and gpu.intel.com/i915 request.
- Source API keys and nzbget credentials through VSO VaultStaticSecrets from
  kv/service/media-apps/<app>; expose each app via a traefik-internal Gateway
  and HTTPRoute at <app>.k8s.syd1.au.unkin.net.
- Register the media project and applicationset in the argocd bootstrap
  kustomizations.

apps/base/nzbget/deployment.yaml

@@ -0,0 +1,81 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nzbget
+  namespace: media-apps
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      app: nzbget
+  template:
+    metadata:
+      labels:
+        app: nzbget
+    spec:
+      securityContext:
+        fsGroup: 1000
+      containers:
+        - name: nzbget
+          image: ghcr.io/home-operations/nzbget:rolling
+          imagePullPolicy: IfNotPresent
+          ports:
+            - name: http
+              containerPort: 6789
+              protocol: TCP
+          env:
+            - name: TZ
+              value: Australia/Sydney
+            - name: PUID
+              value: "1000"
+            - name: PGID
+              value: "1000"
+            - name: NZBGET_USER
+              valueFrom:
+                secretKeyRef:
+                  name: nzbget-secrets
+                  key: NZBGET_USER
+            - name: NZBGET_PASS
+              valueFrom:
+                secretKeyRef:
+                  name: nzbget-secrets
+                  key: NZBGET_PASS
+          resources:
+            requests:
+              cpu: 100m
+              memory: 512Mi
+            limits:
+              cpu: "4"
+              memory: 8Gi
+          livenessProbe:
+            httpGet:
+              path: /
+              port: http
+            initialDelaySeconds: 30
+            periodSeconds: 30
+          readinessProbe:
+            httpGet:
+              path: /
+              port: http
+            initialDelaySeconds: 5
+            periodSeconds: 10
+          volumeMounts:
+            - name: config
+              mountPath: /config
+            - name: movies
+              mountPath: /mnt/movies
+            - name: tvseries
+              mountPath: /mnt/tvseries
+      volumes:
+        - name: config
+          persistentVolumeClaim:
+            claimName: nzbget-config
+        - name: movies
+          persistentVolumeClaim:
+            claimName: movies
+        - name: tvseries
+          persistentVolumeClaim:
+            claimName: tvseries

apps/base/nzbget/gateway.yaml

@@ -0,0 +1,37 @@
+---
+apiVersion: gateway.networking.k8s.io/v1
+kind: Gateway
+metadata:
+  labels:
+    traefik.io/instance: internal
+  annotations:
+    cert-manager.io/cluster-issuer: vault-issuer
+    cert-manager.io/common-name: nzbget.k8s.syd1.au.unkin.net
+    cert-manager.io/private-key-size: "4096"
+    external-dns.alpha.kubernetes.io/hostname: nzbget.k8s.syd1.au.unkin.net
+    external-dns.alpha.kubernetes.io/target: 198.18.200.4
+  name: nzbget
+  namespace: media-apps
+spec:
+  gatewayClassName: traefik-internal
+  listeners:
+    - allowedRoutes:
+        namespaces:
+          from: Same
+      hostname: nzbget.k8s.syd1.au.unkin.net
+      name: http
+      port: 80
+      protocol: HTTP
+    - allowedRoutes:
+        namespaces:
+          from: Same
+      hostname: nzbget.k8s.syd1.au.unkin.net
+      name: https
+      port: 443
+      protocol: HTTPS
+      tls:
+        certificateRefs:
+          - group: ""
+            kind: Secret
+            name: nzbget-tls
+        mode: Terminate

apps/base/nzbget/httproute.yaml

@@ -0,0 +1,49 @@
+---
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: http-redirect
+  namespace: media-apps
+spec:
+  hostnames:
+    - nzbget.k8s.syd1.au.unkin.net
+  parentRefs:
+    - group: gateway.networking.k8s.io
+      kind: Gateway
+      name: nzbget
+      sectionName: http
+  rules:
+    - filters:
+        - type: RequestRedirect
+          requestRedirect:
+            scheme: https
+            statusCode: 301
+      matches:
+        - path:
+            type: PathPrefix
+            value: /
+---
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: nzbget
+  namespace: media-apps
+spec:
+  hostnames:
+    - nzbget.k8s.syd1.au.unkin.net
+  parentRefs:
+    - group: gateway.networking.k8s.io
+      kind: Gateway
+      name: nzbget
+      sectionName: https
+  rules:
+    - backendRefs:
+        - group: ""
+          kind: Service
+          name: nzbget
+          port: 6789
+          weight: 1
+      matches:
+        - path:
+            type: PathPrefix
+            value: /

apps/base/nzbget/kustomization.yaml

@@ -0,0 +1,11 @@
+---
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - pvc.yaml
+  - vaultstaticsecret.yaml
+  - deployment.yaml
+  - service.yaml
+  - gateway.yaml
+  - httproute.yaml

apps/base/nzbget/pvc.yaml

@@ -0,0 +1,14 @@
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: nzbget-config
+  namespace: media-apps
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+  storageClassName: cephrbd-fast-delete
+  volumeMode: Filesystem

apps/base/nzbget/service.yaml

@@ -0,0 +1,15 @@
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: nzbget
+  namespace: media-apps
+spec:
+  type: ClusterIP
+  selector:
+    app: nzbget
+  ports:
+    - name: http
+      port: 6789
+      targetPort: http
+      protocol: TCP

apps/base/nzbget/vaultstaticsecret.yaml

@@ -0,0 +1,18 @@
+---
+apiVersion: secrets.hashicorp.com/v1beta1
+kind: VaultStaticSecret
+metadata:
+  name: nzbget
+  namespace: media-apps
+spec:
+  destination:
+    create: true
+    name: nzbget-secrets
+  mount: kv
+  path: service/media-apps/nzbget
+  refreshAfter: 30s
+  type: kv-v2
+  vaultAuthRef: default
+  rolloutRestartTargets:
+    - kind: Deployment
+      name: nzbget