tests fixes

src/Cli/__Libraries/StellaOps.Cli.Plugins.Vex/VexCliCommandModule.cs

@@ -1189,12 +1189,19 @@ public sealed class VexCliCommandModule : ICliCommandModule
             Description = "Friendly name for the webhook"
         };
 
+        var formatOption = new Option<string>("--format")
+        {
+            Description = "Output format (table or json)"
+        };
+        formatOption.SetDefaultValue("table");
+
         var addCommand = new Command("add", "Register a new VEX webhook")
         {
             urlOption,
             eventsOption,
             secretOption,
             nameOption,
+            formatOption,
             verboseOption
         };
 
@@ -1204,10 +1211,26 @@ public sealed class VexCliCommandModule : ICliCommandModule
             var events = parseResult.GetValue(eventsOption) ?? [];
             var secret = parseResult.GetValue(secretOption);
             var name = parseResult.GetValue(nameOption);
+            var format = parseResult.GetValue(formatOption) ?? "table";
             var verbose = parseResult.GetValue(verboseOption);
 
             var newId = $"wh-{Guid.NewGuid().ToString()[..8]}";
 
+            if (format.Equals("json", StringComparison.OrdinalIgnoreCase))
+            {
+                var result = new
+                {
+                    id = newId,
+                    url = url,
+                    events = events,
+                    name = name,
+                    status = "Active",
+                    createdAt = DateTimeOffset.UtcNow.ToString("O")
+                };
+                Console.WriteLine(System.Text.Json.JsonSerializer.Serialize(result, new System.Text.Json.JsonSerializerOptions { WriteIndented = true }));
+                return Task.FromResult(0);
+            }
+
             Console.WriteLine("Webhook registered successfully");
             Console.WriteLine();
             Console.WriteLine($"ID:     {newId}");