- Migrated useDashboard hook from useState/useEffect to React Query
- Added query key factory: dashboardQueryKeys for proper cache management
- Configured staleTime: 30 seconds (dashboard data changes frequently)
- Configured gcTime: 2 minutes (keeps data in cache)
- Added retry: 1 with retryDelay: 1000ms for automatic retry
- Preserved backward compatibility: same return interface
- Dashboard data now automatically cached and deduplicated
- Multiple components using useDashboard share cached data
- Automatic background refetching when data becomes stale
- Better performance and reduced API calls
- Action 2.1.1.7 complete - Sub-Epic 2.1.1 complete
- Updated getDashboardData() to call /api/v1/dashboard endpoint
- Added support for query parameters: activity_limit, library_limit, stats_period
- Added TrackPreview and LibraryPreview interfaces matching backend contract
- Updated DashboardData interface to include optional library_preview field
- Updated useDashboard hook to accept options and return libraryPreview
- Added fallback to old multiple-call method if new endpoint fails
- Dashboard now loads with single request instead of multiple parallel calls
- All existing functionality preserved, backward compatible during migration
- Action 2.1.1.3 complete - frontend ready to use aggregated endpoint
- Created dashboardService.ts to fetch real stats and activity from API
- Created useDashboard hook for managing dashboard data
- Updated DashboardPage to use real data instead of hardcoded values
- Added loading states and skeletons for better UX
- Made quick actions functional with navigation
- Added activity timeline with real timestamps
- Formatted numbers with K/M suffixes for readability
- Added relative time formatting using date-fns
