Switched the ACME server to Let's Encrypt production for certificate issuance. Added a new ClusterIssuer resource for staging to support testing without hitting rate limits.
This commit includes Helm-based installation scripts for MetalLB, Traefik, Cert-Manager, and External DNS, along with their necessary configurations. Updates to cert-manager YAML ensure production-ready naming and namespace adjustments. These changes aim to streamline the deployment and management of Kubernetes services with simplified automation.
Introduce a `ClusterIssuer` resource for cert-manager to enable Let's Encrypt integration with Traefik. Add an MIT license for the project and clarify the purpose of the repository in the README.
