feat(routes): add remote ingress controls and preserve-port targeting for route configuration

test/test.dns-runtime-routes.node.ts

@@ -279,6 +279,55 @@ tap.test('RouteConfigManager clears a network target ref and keeps the edited in
   expect(appliedRoutes[appliedRoutes.length - 1][0].action.targets[0].port).toEqual(29424);
 });
 
+tap.test('RouteConfigManager clears remote ingress config when route patch sets it to null', async () => {
+  await testDbPromise;
+  await clearTestState();
+
+  const appliedRoutes: any[][] = [];
+  const smartProxy = {
+    updateRoutes: async (routes: any[]) => {
+      appliedRoutes.push(routes);
+    },
+  };
+
+  const routeManager = new RouteConfigManager(
+    () => smartProxy as any,
+  );
+  await routeManager.initialize([], [], []);
+
+  const routeId = await routeManager.createRoute(
+    {
+      name: 'remote-ingress-route',
+      match: { ports: [443], domains: ['app.example.com'] },
+      action: {
+        type: 'forward',
+        targets: [{ host: '127.0.0.1', port: 8443 }],
+      },
+      remoteIngress: {
+        enabled: true,
+        edgeFilter: ['edge-a', 'blue'],
+      },
+    } as any,
+    'test-user',
+  );
+
+  const updateResult = await routeManager.updateRoute(routeId, {
+    route: {
+      remoteIngress: null,
+    } as any,
+  });
+
+  expect(updateResult.success).toEqual(true);
+
+  const storedRoute = await RouteDoc.findById(routeId);
+  expect(storedRoute?.route.remoteIngress).toBeUndefined();
+
+  const mergedRoute = routeManager.getMergedRoutes().routes.find((route) => route.id === routeId);
+  expect(mergedRoute?.route.remoteIngress).toBeUndefined();
+
+  expect(appliedRoutes[appliedRoutes.length - 1][0].remoteIngress).toBeUndefined();
+});
+
 tap.test('DnsManager warning keeps dnsNsDomains in scope', async () => {
   await testDbPromise;
   await clearTestState();