Fix

Tests/Distribution/NodeFanoutSweep/Server/ControlResource.cs

@@ -0,0 +1,15 @@
+using Esiur.Resource;
+
+/// <summary>
+/// Server-side telemetry resource the sweep orchestrator attaches to (sys/control). The server
+/// updates these once per second; the updates propagate to the orchestrator so it can attribute
+/// fan-out saturation to the server (CPU across all cores, can exceed 100%) and confirm the
+/// connected-subscriber count. Exported as fields so the runtime generates change-notifying
+/// properties (CpuPercent, ConnectedClients).
+/// </summary>
+[Resource]
+public partial class ControlResource : Resource
+{
+    [Export] public double cpuPercent;
+    [Export] public int connectedClients;
+}