feat(remoteingress): expose connected edge IPs and detected public IP; resolve proxy IPs from SmartProxy and improve ops UI

ts/classes.dcrouter.ts

@@ -217,6 +217,9 @@ export class DcRouter {
   public routeConfigManager?: RouteConfigManager;
   public apiTokenManager?: ApiTokenManager;
 
+  // Auto-discovered public IP (populated by generateAuthoritativeRecords)
+  public detectedPublicIp: string | null = null;
+
   // DNS query logging rate limiter state
   private dnsLogWindow: number[] = [];
   private dnsBatchCount: number = 0;
@@ -1574,6 +1577,7 @@ export class DcRouter {
     } else if (this.options.publicIp) {
       // Use explicitly configured public IP
       publicIp = this.options.publicIp;
+      this.detectedPublicIp = publicIp;
       logger.log('info', `Using configured public IP for nameserver A records: ${publicIp}`);
     } else {
       // Auto-discover public IP using smartnetwork
@@ -1584,6 +1588,7 @@ export class DcRouter {
         
         if (publicIps.v4) {
           publicIp = publicIps.v4;
+          this.detectedPublicIp = publicIp;
           logger.log('info', `Auto-discovered public IPv4: ${publicIp}`);
         } else {
           logger.log('warn', 'Could not auto-discover public IPv4 address');