Adding metrics handler

Author: courageJ

pkg/ext-proc/main.go

@@ -19,6 +19,7 @@ import (
 	"inference.networking.x-k8s.io/gateway-api-inference-extension/pkg/ext-proc/backend"
 	"inference.networking.x-k8s.io/gateway-api-inference-extension/pkg/ext-proc/backend/vllm"
 	"inference.networking.x-k8s.io/gateway-api-inference-extension/pkg/ext-proc/handlers"
+	"inference.networking.x-k8s.io/gateway-api-inference-extension/pkg/ext-proc/metrics"
 	"inference.networking.x-k8s.io/gateway-api-inference-extension/pkg/ext-proc/scheduling"
 	"inference.networking.x-k8s.io/llm-instance-gateway/api/v1alpha1"
 	"inference.networking.x-k8s.io/llm-instance-gateway/pkg/ext-proc/backend"