- types.ts: Added TrafficRecord interface and glanceViews field to CombinedKPIs
- dataProcessor.ts: Added processTrafficExcel parser for Traffic Weekly.xlsx
- dataProcessor.ts: Updated mergeSalesAndAdsData to accept and merge traffic data
- App.tsx: Added trafficData state and handleTrafficUpload handler
- FileUpload.tsx: Added Traffic file upload section for GV data
- AdsPerformance.tsx: Added GV and CVR(GV) summary cards
- AdsPerformance.tsx: Added GV column to product table
