refactor(cli): remove unused isFirst prop from DenseToolMessage

packages/cli/src/ui/components/messages/DenseToolMessage.test.tsx

@@ -18,7 +18,6 @@ describe('DenseToolMessage', () => {
     status: ToolCallStatus.Success,
     resultDisplay: 'Success result',
     confirmationDetails: undefined,
-    isFirst: true,
   };
 
   it('renders correctly for a successful string result', () => {

packages/cli/src/ui/components/messages/DenseToolMessage.tsx

@@ -11,9 +11,7 @@ import type { IndividualToolCallDisplay } from '../../types.js';
 import { ToolStatusIndicator } from './ToolShared.js';
 import { theme } from '../../semantic-colors.js';
 
-interface DenseToolMessageProps extends IndividualToolCallDisplay {
-  isFirst: boolean;
-}
+type DenseToolMessageProps = IndividualToolCallDisplay;
 
 interface FileDiffResult {
   fileDiff: string;

packages/cli/src/ui/components/messages/ToolGroupMessage.tsx

@@ -191,9 +191,7 @@ export const ToolGroupMessage: React.FC<ToolGroupMessageProps> = ({
           tool.status !== ToolCallStatus.Confirming;
 
         if (useDenseView) {
-          return (
-            <DenseToolMessage key={tool.callId} {...tool} isFirst={isFirst} />
-          );
+          return <DenseToolMessage key={tool.callId} {...tool} />;
         }
 
         const commonProps = {