Replace inline JSON string definitions with native YAML syntax for Kubernetes resource manifests in helm.yml, improving readability and maintainability while preserving identical resource configurations.
Introduce cert-manager role and a dedicated playbook for automated certificate management setup, complementing the newly restructured uyuni role for comprehensive infrastructure automation.
Added new playbook `setup_metrics_server.yml` and standalone role `roles/metrics_server/` to centralize Kubernetes metrics server deployment and configuration, separating concerns from the main uyuni role for modularity and reuse.
