Expand XML docs across bridge and test code

tools/opcuacli-dotnet/Commands/ConnectCommand.cs

@@ -7,9 +7,16 @@ namespace OpcUaCli.Commands;
 [Command("connect", Description = "Test connection to an OPC UA server")]
 public class ConnectCommand : ICommand
 {
+    /// <summary>
+    /// Gets the OPC UA endpoint URL to test.
+    /// </summary>
     [CommandOption("url", 'u', Description = "OPC UA server endpoint URL", IsRequired = true)]
     public string Url { get; init; } = default!;
 
+    /// <summary>
+    /// Connects to the OPC UA endpoint and prints the resolved server metadata.
+    /// </summary>
+    /// <param name="console">The console used to report connection results.</param>
     public async ValueTask ExecuteAsync(IConsole console)
     {
         using var session = await OpcUaHelper.ConnectAsync(Url);