Remove background from tool call containers and add clean labels for create_task/execute_task

Author: spencrmartin

ui/desktop/src/components/ToolCallWithResponse.tsx

@@ -39,7 +39,7 @@ export default function ToolCallWithResponse({
     <>
       <div
         className={cn(
-          'w-full text-sm font-sans rounded-lg overflow-hidden border-borderSubtle border bg-background-muted'
+          'w-full text-sm font-sans rounded-lg overflow-hidden border-borderSubtle border'
         )}
       >
         <ToolCallView
@@ -400,6 +400,12 @@ function ToolCallView({
       case 'computer_control':
         return `poking around...`;
 
+      case 'create_task':
+        return `create task`;
+
+      case 'execute_task':
+        return `execute task`;
+
       default: {
         // Generic fallback for unknown tools: ToolName + CompactArguments
         // This ensures any MCP tool works without explicit handling