Add gateway auto toggle for client mode

test/server/gateway-presence.test.js

@@ -5,6 +5,7 @@ import path from 'node:path';
 import test from 'node:test';
 
 import {
+  applyGatewayPreference,
   buildGatewayPresence,
   createGatewayAutoState,
   nextGatewayAutoState,
@@ -107,3 +108,17 @@ test('host route freshness and Gateway failures drive a safe automatic fallback'
   }));
   assert.equal(readHostNetworkState(statePath, { now }), null);
 });
+
+test('client can ignore and restore a verified Gateway without losing discovery', () => {
+  const detected = {
+    ...createGatewayAutoState(),
+    mode: 'gateway-direct',
+    gatewayId: 'gateway-1',
+  };
+
+  const ignored = applyGatewayPreference(detected, false);
+  assert.equal(ignored.mode, 'local-vpn');
+  assert.equal(ignored.gatewayId, 'gateway-1');
+  assert.equal(applyGatewayPreference(ignored, true).mode, 'gateway-direct');
+  assert.equal(applyGatewayPreference(createGatewayAutoState(), true).mode, 'local-vpn');
+});