typescript
import React from 'react'
import { CheckCircle, AlertTriangle, Info } from 'lucide-react'

interface ActivityItem {
  id: string
  type: 'success' | 'warning' | 'info'
  title: string
  description: string
  timestamp: string
  asset?: string
}

const ActivityTimeline: React.FC = () => {
  const activities: ActivityItem[] = [
    {
      id: '1',
      type: 'success',
      title: 'Database server restored',
      description: 'Backup restoration completed successfully',
      timestamp: '2 hours ago',
      asset: 'db-prod-01'
    },
    {
      id: '2',
      type: 'warning',
      title: 'High memory usage detected',
      description: 'Web server memory usage above 90% threshold',
      timestamp: '4 hours ago',
      asset: 'web-staging-02'
    },
    {
      id: '3',
      type: 'info',
      title: 'New asset added',
      description: 'Added new load balancer to inventory',
      timestamp: '6 hours ago'
    },
    {
      id: '4',
      type: 'success',
      title: 'Network switch configured',
      description: 'VLAN configuration updated successfully',
      timestamp: '1 day ago',
      asset: 'switch-dc-03'
    }
  ]

  const getActivityIcon = (type: string) => {
    switch (type) {
      case 'success':
        return <CheckCircle className="h-4 w-4 text-accent-500" />
      case 'warning':
        return <AlertTriangle className="h-4 w-4 text-alert-500" />
      case 'info':
        return <Info className="h-4 w-4 text-primary-500" />
      default:
        return <Info className="h-4 w-4 text-primary-500" />
    }
  }

  const getActivityColor = (type: string) => {
    switch (type) {
      case 'success':
        return 'border-accent-200'
      case 'warning':
        return 'border-alert-200'
      case 'info':
        return 'border-primary-200'
      default:
        return 'border-gray-200'
    }
  }

  return (
    <div className="flow-root">
      <ul className="-mb-8">
        {activities.map((activity, activityIdx) => (
          <li key={activity.id}>
            <div className="relative pb-8">
              {activityIdx !== activities.length - 1 && (
                <span
                  className="absolute top-4 left-4 -ml-px h-full w-0.5 bg-gray-200"
                  aria-hidden="true"
                />
              )}
              <div className="relative flex space-x-3">
                <div>
                  <span className={`
                    h-8 w-8 rounded-full flex items-center justify-center ring-8 ring-white
                    ${getActivityColor(activity.type)}
                  `}>
                    {getActivityIcon(activity.type)}
                  </span>
                </div>
                <div className="min-w-0 flex-1 pt-1.5 flex justify-between space-x-4">
                  <div>
                    <p className="text-sm text-gray-900">{activity.title}</p>
                    <p className="text-sm text-gray-500">{activity.description}</p>
                    {activity.asset && (
                      <span className="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-gray-100 text-gray-800">
                    {activity.asset}
                  </span>
                    )}
                  </div>
                  <div className="text-right text-sm whitespace-nowrap text-gray-500">
                    {activity.timestamp}
                  </div>
                </div>
              </div>
            </div>
          </li>
        ))}
      </ul>
    </div>
  )
}

export default ActivityTimeline

</html>