fix(dcrouter): enable PROXY protocol v1 handling for SmartProxy when remoteIngress is enabled to preserve client IPs

ts/classes.dcrouter.ts

@@ -586,6 +586,13 @@ export class DcRouter {
         };
       }
       
+      // When remoteIngress is enabled, the hub binary forwards tunneled connections
+      // to SmartProxy with PROXY protocol v1 headers to preserve client IPs.
+      if (this.options.remoteIngressConfig?.enabled) {
+        smartProxyConfig.acceptProxyProtocol = true;
+        smartProxyConfig.proxyIPs = ['127.0.0.1'];
+      }
+
       // Create SmartProxy instance
       console.log('[DcRouter] Creating SmartProxy instance with config:', JSON.stringify({
         routeCount: smartProxyConfig.routes?.length,