- Created admin authentication system with useIsAdmin hook
- Added AdminProtected component for route protection
- Added prominent 'Edit Card (Admin)' button on card detail pages
- Protected all admin routes (/admin/*) with authentication
- Added admin navigation item to main layout sidebar
- Updated auth verification API to return mock admin user
- Integrated admin edit button that redirects to card editor with card ID
- Added proper access denied page for non-admin users
- Admin-only features now show/hide based on user role
- Seamless workflow: spot incorrect card → click edit → fix immediately
- Redesigned card display with 2.5:3.5 aspect ratio and image-only view
- Added infinite scroll to replace pagination
- Implemented authentic card back placeholders for MTG, Pokemon, and Lorcana
- Added rarity-based particle effects with tiered intensity (mythic/enchanted/rare/uncommon)
- Enhanced hover details panel with structured card information
- Fixed search functionality with debouncing and Enter key support
- Improved filter system with working TCG, rarity, set, and price filters
- Added favorite system for cards in both hover and detail views
- Updated card detail page with comprehensive metadata and actions
- Fixed API filtering with proper Vercel Postgres implementation
- Added particle animations and rarity glow effects
- Improved overall UX with better visual hierarchy and interactions
