feat(remoteingress): add ability to generate remote ingress connection tokens and UI copy action; add hubDomain config option; update remoteingress dependency to ^3.1.1

ts/classes.dcrouter.ts

@@ -166,6 +166,8 @@ export interface IDcRouterOptions {
     enabled?: boolean;
     /** Port for tunnel connections from edge nodes (default: 8443) */
     tunnelPort?: number;
+    /** External hostname of this hub, embedded in connection tokens */
+    hubDomain?: string;
     /** TLS configuration for the tunnel server */
     tls?: {
       certPath?: string;