feat(network): Add traffic stats endpoint and dashboard UI; enhance platform services and certificate health reporting

ts/classes/httpserver.ts

@@ -317,6 +317,8 @@ export class OneboxHttpServer {
       return await this.handleGetNetworkTargetsRequest();
     } else if (path === '/api/network/stats' && method === 'GET') {
       return await this.handleGetNetworkStatsRequest();
+    } else if (path === '/api/network/traffic-stats' && method === 'GET') {
+      return await this.handleGetTrafficStatsRequest(new URL(req.url));
     } else {
       return this.jsonResponse({ success: false, error: 'Not found' }, 404);
     }
@@ -1365,6 +1367,37 @@ export class OneboxHttpServer {
     }
   }
 
+  /**
+   * Get traffic stats from Caddy access logs
+   */
+  private async handleGetTrafficStatsRequest(url: URL): Promise<Response> {
+    try {
+      // Get minutes parameter (default: 60)
+      const minutesParam = url.searchParams.get('minutes');
+      const minutes = minutesParam ? parseInt(minutesParam, 10) : 60;
+
+      if (isNaN(minutes) || minutes < 1 || minutes > 60) {
+        return this.jsonResponse({
+          success: false,
+          error: 'Invalid minutes parameter. Must be between 1 and 60.',
+        }, 400);
+      }
+
+      const trafficStats = this.oneboxRef.caddyLogReceiver.getTrafficStats(minutes);
+
+      return this.jsonResponse({
+        success: true,
+        data: trafficStats,
+      });
+    } catch (error) {
+      logger.error(`Failed to get traffic stats: ${getErrorMessage(error)}`);
+      return this.jsonResponse({
+        success: false,
+        error: getErrorMessage(error) || 'Failed to get traffic stats',
+      }, 500);
+    }
+  }
+
   /**
    * Broadcast message to all connected WebSocket clients
    */