Display delegate sub agents logs in UI (#7519)

Co-authored-by: Jack Amadeo <jackamadeo@squareup.com>

ui/desktop/src/utils/toolIconMapping.tsx

@@ -4,6 +4,7 @@ import {
   Brain,
   Camera,
   Code2,
+  Delegate,
   Eye,
   FileEdit,
   FilePlus,
@@ -75,6 +76,12 @@ export const getToolIcon = (toolName: string): React.ComponentType<ToolIconProps
     case 'docs_tool':
       return FileText;
 
+    // Delegation Tools
+    case 'delegate':
+      return Delegate;
+    case 'load':
+      return Eye;
+
     // Special Tools
     case 'final_output':
       return Tool; // Could be a checkmark icon if we had one