fix(dashboard): add EndpointSlice column definitions for Pod serving table

The service details page showed "Raw:" and "Invalid Date" in the Pod
serving table because the EnrichedTable referenced customizationId
"factory-kube-service-details-endpointslice" which had no corresponding
CustomColumnsOverride. Add column definitions for Pod, Addresses, Ready,
and Node fields.

Assisted-By: Claude AI
Signed-off-by: Kirill Ilin <stitch14@yandex.ru>
(cherry picked from commit 37f1b3b59c)

internal/controller/dashboard/static_refactored.go

@@ -154,6 +154,14 @@ func CreateAllCustomColumnsOverrides() []*dashboardv1alpha1.CustomColumnsOverrid
 			createStringColumn("Version", ".status.version"),
 		}),
 
+		// Factory service details endpointslice (Pod serving table)
+		createCustomColumnsOverride("factory-kube-service-details-endpointslice", []any{
+			createStringColumn("Pod", ".targetRef.name"),
+			createArrayColumn("Addresses", ".addresses"),
+			createBoolColumn("Ready", ".conditions.ready"),
+			createStringColumn("Node", ".nodeName"),
+		}),
+
 		// Factory service details port mapping
 		createCustomColumnsOverride("factory-kube-service-details-port-mapping", []any{
 			createStringColumn("Name", ".name"),