胶料快检添加离线模式

yy-admin-master/YY.Admin/Infrastructure/Network/NetworkMonitor.cs

@@ -62,10 +62,10 @@ public class NetworkMonitor : INetworkMonitor
 
     private async Task MonitorLoopAsync(CancellationToken cancellationToken)
     {
-        // 启动后立即探活一次，避免首屏 10 秒内 IsOnline 恒为 false
+        // 启动后立即探活一次，避免首屏数秒内 IsOnline 恒为 false
         await RunHttpProbeAndRecomputeAsync(cancellationToken).ConfigureAwait(false);
 
-        using var timer = new PeriodicTimer(TimeSpan.FromSeconds(10));
+        using var timer = new PeriodicTimer(TimeSpan.FromSeconds(5));
         while (await timer.WaitForNextTickAsync(cancellationToken).ConfigureAwait(false))
         {
             await RunHttpProbeAndRecomputeAsync(cancellationToken).ConfigureAwait(false);