Delegation in kgateway - scaling routing with multi-tenant ownership

As environments scale, traffic routing through Kubernetes gateways naturally becomes increasingly complex. Microservices architecture adoption tends to amplify this challenge as what used to be a single route for a monolith becomes hundreds or even thousands of path-based matchers across services, often bundled under a shared hostname. While it’s technically possible to configure all routes in a single HTTPRoute resource, this monolithic approach doesn’t scale well in multi-team environments.