Introduces an exportOrdersToCSV function in lib/api-client.ts to allow exporting orders by status as a CSV file. Updates various UI components to use the '•' (bullet) symbol instead of '·' (middle dot) and replaces some emoji/unicode characters for improved consistency and compatibility. Also normalizes the 'use client' directive to include a BOM in many files.
Refactored the admin dashboard to use tabbed navigation for analytics and management. Enhanced AdminAnalytics with Recharts visualizations, added top vendors by revenue, and improved chart tooltips. Removed unused columns from vendor table. Updated layout and notification context to exclude admin pages from dashboard-specific UI and notifications. Minor debug logging added to SystemStatusCard.
