feat: auto-apply extraPorts to service templates

[fajarhide]

Summary

• Auto-apply clickhouse.extraPorts from values.yaml to ClickHouse service templates.

• Keeps container ports and service ports in sync with a single configuration.

Changes

• Update charts/clickhouse/templates/chi.yaml

  • Add extraPorts to the regular service template.

  • Ensure extraPorts in the LoadBalancer service template maps containerPort → port and targetPort.

Usage

Define once in values.yaml:

clickhouse:
  extraPorts:
    - name: custom-port
      containerPort: 8080

Result

custom-port is exposed on:

• The ClickHouse container
• The regular Service
• The LoadBalancer Service (when enabled)