feat(chart): add prometheus-url flag to cozystack-controller deployment

Pass --prometheus-url to the controller container when configured in
values. This enables querying SeaweedFS bucket size metrics from a
Prometheus-compatible API for S3 bucket billing.

RBAC already covers BucketClaim access via existing wildcard rule
(apiGroups: ['*'], resources: ['*'], verbs: ["get", "list", "watch"]).

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

packages/system/cozystack-controller/templates/deployment.yaml

@@ -27,3 +27,6 @@ spec:
         {{- if .Values.cozystackController.disableTelemetry }}
         - --disable-telemetry
         {{- end }}
+        {{- if .Values.cozystackController.prometheusUrl }}
+        - --prometheus-url={{ .Values.cozystackController.prometheusUrl }}
+        {{- end }}

packages/system/cozystack-controller/values.yaml

@@ -2,3 +2,4 @@ cozystackController:
   image: ghcr.io/cozystack/cozystack/cozystack-controller:v1.3.0-rc.1@sha256:5ab50893e9d0237d26f366c9d647da6337ca9b97bae764430571d4fb080f6200
   debug: false
   disableTelemetry: false
+  prometheusUrl: ""