fix(security): agrega X-Frame-Options en Program.cs

Author: alonsoramoss

backend/SENATICRUD/SENATICRUD/Program.cs

@@ -22,6 +22,13 @@ private static void Main(string[] args)
 
         app.UseHttpsRedirection();
 
+        // Agregar header X-Frame-Options para prevenir clickjacking
+        app.Use(async (context, next) =>
+        {
+            context.Response.Headers.Add("X-Frame-Options", "SAMEORIGIN");
+            await next();
+        });
+
         app.UseAuthorization();
 
         app.MapControllers();