feat: add Radarr and Sonarr GitOps applications

- Add Radarr and Sonarr ArgoCD Applications with auto-image updates
- Update image tags from pinned versions to latest for auto-updates
- Configure Bananaspliff charts with existing configurations
- Enable GitOps workflow with digest strategy for latest tag tracking
- Radarr: ghcr.io/linuxserver/radarr:5.26.2 -> latest
- Sonarr: ghcr.io/linuxserver/sonarr:4.0.15 -> latest

🤖 Generated with [Claude Code](https://claude.ai/code)

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

helm-values/sonarr_values.yaml

@@ -0,0 +1,41 @@
+---
+replicaCount: 1
+
+image:
+  repository: ghcr.io/linuxserver/sonarr
+  tag: latest
+  pullPolicy: Always
+
+env:
+  - name: PUID
+    value: "1000"
+  - name: PGID
+    value: "1000"
+  - name: TZ
+    value: "Europe/Amsterdam"
+
+service:
+  type: ClusterIP
+  port: 8989
+
+volumes:
+  - name: plex-data
+    persistentVolumeClaim:
+      claimName: "plex-data"
+
+volumeMounts:
+  - name: plex-data
+    mountPath: "/config"
+    subPath: "configs/sonarr"
+  - name: "plex-data"
+    mountPath: "/nfs"
+
+resources:
+  requests:
+    memory: "500Mi"
+    cpu: "500m"
+    ephemeral-storage: "50Mi"
+  limits:
+    memory: "800Mi"
+    cpu: "1000m"
+    ephemeral-storage: "1Gi"