fix(PortProxy): Adjust inactivity threshold to a random value between 20 and 30 minutes for better variability

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartproxy',
-  version: '3.25.0',
+  version: '3.25.1',
   description: 'A powerful proxy package that effectively handles high traffic, with features such as SSL/TLS support, port proxying, WebSocket handling, and dynamic routing with authentication options.'
 }

ts/classes.portproxy.ts

@@ -1211,7 +1211,7 @@ export class PortProxy {
         // Skip inactivity check if disabled
         if (!this.settings.disableInactivityCheck) {
           // Inactivity check - use protocol-specific values
-          let inactivityThreshold = 180000; // 3 minutes default
+          let inactivityThreshold = Math.floor(Math.random() * (1800000 - 1200000 + 1)) + 1200000; // random between 20 and 30 minutes
           
           // Set protocol-specific inactivity thresholds
           if (record.protocolType === 'http' && record.isPooledConnection) {