feat(bucket): add WorkloadMonitor for billing integration

Add WorkloadMonitor CR to bucket Helm chart so that the billing
pipeline can discover and track S3 buckets. Add instance label
to BucketClaim metadata for WorkloadMonitor selector matching.

Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: ZverGuy <maximbel2003@gmail.com>

packages/apps/bucket/templates/bucketclaim.yaml

@@ -4,6 +4,8 @@ apiVersion: objectstorage.k8s.io/v1alpha1
 kind: BucketClaim
 metadata:
   name: {{ .Release.Name }}
+  labels:
+    app.kubernetes.io/instance: {{ .Release.Name }}
 spec:
   bucketClassName: {{ $seaweedfs }}{{- if $pool }}-{{ $pool }}{{- end }}{{- if .Values.locking }}-lock{{- end }}
   protocols:

packages/apps/bucket/templates/workloadmonitor.yaml

@@ -0,0 +1,13 @@
+---
+apiVersion: cozystack.io/v1alpha1
+kind: WorkloadMonitor
+metadata:
+  name: {{ $.Release.Name }}
+spec:
+  replicas: 1
+  minReplicas: 1
+  kind: bucket
+  type: s3
+  selector:
+    app.kubernetes.io/instance: {{ $.Release.Name }}
+  version: {{ $.Chart.Version }}