feat(opsserver): add RADIUS and VPN metrics to combined ops stats and overview dashboards, and stream live log buffer entries in follow mode

ts/opsserver/handlers/stats.handler.ts

@@ -3,6 +3,7 @@ import type { OpsServer } from '../classes.opsserver.js';
 import * as interfaces from '../../../ts_interfaces/index.js';
 import { MetricsManager } from '../../monitoring/index.js';
 import { SecurityLogger } from '../../security/classes.securitylogger.js';
+import { commitinfo } from '../../00_commitinfo_data.js';
 
 export class StatsHandler {
   constructor(private opsServerRef: OpsServer) {
@@ -158,7 +159,7 @@ export class StatsHandler {
                 };
                 return acc;
               }, {} as any),
-              version: '2.12.0', // TODO: Get from package.json
+              version: commitinfo.version,
             },
           };
         }
@@ -314,7 +315,47 @@ export class StatsHandler {
               })()
             );
           }
-          
+
+          if (sections.radius) {
+            promises.push(
+              (async () => {
+                const radiusServer = this.opsServerRef.dcRouterRef.radiusServer;
+                if (!radiusServer) return;
+                const stats = radiusServer.getStats();
+                const accountingStats = radiusServer.getAccountingManager().getStats();
+                metrics.radius = {
+                  running: stats.running,
+                  uptime: stats.uptime,
+                  authRequests: stats.authRequests,
+                  authAccepts: stats.authAccepts,
+                  authRejects: stats.authRejects,
+                  accountingRequests: stats.accountingRequests,
+                  activeSessions: stats.activeSessions,
+                  totalInputBytes: accountingStats.totalInputBytes,
+                  totalOutputBytes: accountingStats.totalOutputBytes,
+                };
+              })()
+            );
+          }
+
+          if (sections.vpn) {
+            promises.push(
+              (async () => {
+                const vpnManager = this.opsServerRef.dcRouterRef.vpnManager;
+                const vpnConfig = this.opsServerRef.dcRouterRef.options.vpnConfig;
+                if (!vpnManager) return;
+                const connected = await vpnManager.getConnectedClients();
+                metrics.vpn = {
+                  running: vpnManager.running,
+                  subnet: vpnManager.getSubnet(),
+                  registeredClients: vpnManager.listClients().length,
+                  connectedClients: connected.length,
+                  wgListenPort: vpnConfig?.wgListenPort ?? 51820,
+                };
+              })()
+            );
+          }
+
           await Promise.all(promises);
           
           return {