fix(nodes): locate agents behind a proxy and retry missing countries [CI]

backend/fleet/src/Fleet.Server.Link/NodeConnection.cs

@@ -34,10 +34,13 @@ internal sealed partial class NodeConnection : IDisposable
     private bool _helloDone;
     private int _violations;
 
-    public NodeConnection(FleetLinkHost host, WebSocket socket)
+    private readonly string? _remoteIp;
+
+    public NodeConnection(FleetLinkHost host, WebSocket socket, string? remoteIp = null)
     {
         _host = host;
         _socket = socket;
+        _remoteIp = remoteIp;
     }
 
     public NodeId NodeId => _node!.Id;