Implement a multicluster event exporter for enterprise automation

The multicluster global hub agent in Red Hat Advanced Cluster Management can function as a standalone event exporter for large-scale Kubernetes fleet management. It collects cluster lifecycle and policy compliance events from managed hubs, transforms them into standardized CloudEvents format, and publishes them to Kafka topics. This 'collect once, consume everywhere' approach eliminates event silos across hubs and enables enterprise automation tools like Ansible EDA, Splunk, and ServiceNow to subscribe to cluster events without custom integrations. Key event types include cluster provisioning stages (ProvisionStarted, ProvisionCompleted, ProvisionFailed, Imported, Detaching) and policy compliance state changes. The design has been validated for processing events from 3,500+ clusters, enabling automated Day 2 operations, fleet-wide tracking, and failure recovery workflows.