Implement Metrics Manager and Integrate Metrics Collection

- Removed the existing readme.opsserver.md file as it is no longer needed.
- Added a new MetricsManager class to handle metrics collection using @push.rocks/smartmetrics.
- Integrated MetricsManager into the DcRouter and OpsServer classes.
- Updated StatsHandler and SecurityHandler to retrieve metrics from MetricsManager.
- Implemented methods for tracking email, DNS, and security metrics.
- Added connection tracking capabilities to the MetricsManager.
- Created a new readme.metrics.md file outlining the metrics implementation plan.
- Adjusted plugins.ts to include smartmetrics.
- Added a new monitoring directory with classes for metrics management.
- Created readme.module-adjustments.md to document necessary adjustments for SmartProxy and SmartDNS.

ts/classes.dcrouter.ts

@@ -13,6 +13,7 @@ import { configureEmailStorage, configureEmailServer } from './mail/delivery/ind
 import { StorageManager, type IStorageConfig } from './storage/index.js';
 
 import { OpsServer } from './opsserver/index.js';
+import { MetricsManager } from './monitoring/index.js';
 
 export interface IDcRouterOptions {
   /** 
@@ -133,6 +134,7 @@ export class DcRouter {
   public emailServer?: UnifiedEmailServer;
   public storageManager: StorageManager;
   public opsServer: OpsServer;
+  public metricsManager?: MetricsManager;
   
   // TypedRouter for API endpoints
   public typedrouter = new plugins.typedrequest.TypedRouter();
@@ -160,6 +162,10 @@ export class DcRouter {
     await this.opsServer.start();
 
     try {
+      // Initialize MetricsManager
+      this.metricsManager = new MetricsManager(this);
+      await this.metricsManager.start();
+      
       // Set up SmartProxy for HTTP/HTTPS and all traffic including email routes
       await this.setupSmartProxy();
       
@@ -197,6 +203,14 @@ export class DcRouter {
     console.log('║                    DcRouter Started Successfully                   ║');
     console.log('╚═══════════════════════════════════════════════════════════════════╝\n');
     
+    // Metrics summary
+    if (this.metricsManager) {
+      console.log('📊 Metrics Service:');
+      console.log('   ├─ SmartMetrics: Active');
+      console.log('   ├─ SmartProxy Stats: Active');
+      console.log('   └─ Real-time tracking: Enabled');
+    }
+    
     // SmartProxy summary
     if (this.smartProxy) {
       console.log('🌐 SmartProxy Service:');
@@ -566,6 +580,9 @@ export class DcRouter {
     try {
       // Stop all services in parallel for faster shutdown
       await Promise.all([
+        // Stop metrics manager if running
+        this.metricsManager ? this.metricsManager.stop().catch(err => console.error('Error stopping MetricsManager:', err)) : Promise.resolve(),
+        
         // Stop unified email server if running
         this.emailServer ? this.emailServer.stop().catch(err => console.error('Error stopping email server:', err)) : Promise.resolve(),