- **Perplexity AI Tools**: Web search (`perplexity`) and reasoning (`perplexity_reason`) tools
- **Request Details Modal**: Click any dashboard request to view full details
- **AI Badge**: Perplexity requests marked with visual AI indicator
- **Extended History**: Dashboard shows last 100 requests (up from 10)
- **Token Tracking**: Monitor Perplexity prompt/completion token usage

- Request details modal with Formatted and Raw JSON tabs
- Cached content preview for scraper requests
- Full Perplexity response with citations and token usage
- 3-column token usage display

- Fixed cache_key tracking for cache hits
- Fixed ScrapeResult JSON serialization in request details API