Fix build and code structure improvements. New but essential UI functionality. CI improvements. Documentation improvements. AI module improvements.

src/Cli/StellaOps.Cli/Output/OutputRenderer.cs

@@ -282,11 +282,10 @@ public sealed class OutputRenderer : IOutputRenderer
             .Take(8) // Limit to 8 columns for readability
             .ToList();
 
-        return properties.Select(p => new ColumnDefinition<T>
-        {
-            Header = ToHeaderCase(p.Name),
-            ValueSelector = item => p.GetValue(item)?.ToString()
-        }).ToList();
+        return properties.Select(p => new ColumnDefinition<T>(
+            ToHeaderCase(p.Name),
+            item => p.GetValue(item)?.ToString()
+        )).ToList();
     }
 
     private static bool IsSimpleType(Type type)