I'll help you build a comprehensive notification module following the PRD. Let me first understand your current codebase structure, then create a notification system that showcases all the edge cases mentioned.

Now I'll create a comprehensive notification module that showcases all the edge cases from the PRD in a single interactive demo screen.

I've built a comprehensive notification module that showcases all edge cases mentioned in the PRD in a single interactive demo. The implementation includes visual hierarchy with color-coded notifications (green for success, amber for warning, red for errors with special emphasis), compact two-line layout, filter tabs, action buttons based on notification type, relative timestamps, and interactive demo controls to test all edge cases including empty state, high-volume (100 notifications with virtual scrolling), and long text truncation with hover tooltips. The critical error notifications stand out with a red ring effect, and all notification types have appropriate action buttons as specified in the PRD.