fix(routing): serialize route updates and correct VPN-gated route application

ts/config/classes.reference-resolver.ts

@@ -308,14 +308,15 @@ export class ReferenceResolver {
     if (resolvedMetadata.networkTargetRef) {
       const target = this.targets.get(resolvedMetadata.networkTargetRef);
       if (target) {
+        const hosts = Array.isArray(target.host) ? target.host : [target.host];
         route = {
           ...route,
           action: {
             ...route.action,
-            targets: [{
-              host: target.host as string,
+            targets: hosts.map((h) => ({
+              host: h,
               port: target.port,
-            }],
+            })),
           },
         };
         resolvedMetadata.networkTargetName = target.name;