Complete analytics overhaul with redundant tracking:
CLIENT-SIDE (useAnalytics hook):
- Tracks user behavior in real-time
- Product views, add to cart, checkout steps
- Revenue tracking via op.revenue()
- Captures user session data
SERVER-SIDE (API route + server functions):
- POST /api/analytics/track-order endpoint
- trackOrderCompletedServer() function
- Reliable tracking that can't be blocked
- Works even if browser closes
DUAL TRACKING for order completion:
1. Client tracks immediately (session data)
2. API call to server endpoint (reliable)
3. Both sources recorded with 'source' property
Files:
- src/lib/analytics.ts - Client-side with dual tracking
- src/lib/analytics-server.ts - Server-side tracking
- src/app/api/analytics/track-order/route.ts - API endpoint
Benefits:
- ✅ 100% revenue capture (server-side backup)
- ✅ Real-time client tracking
- ✅ Ad blocker resistant
- ✅ Browser-close resistant
- ✅ Full funnel visibility
