feat: Transform basic landing page into comprehensive admin dashboard

[RafiulM]

Summary

This PR completely transforms the basic CodeGuide starter from a simple hero landing page into a comprehensive, modern admin dashboard. The new frontend provides a professional, responsive interface suitable for admin and management tasks.

🚀 Key Features Added

Dashboard Layout & Navigation

• ✅ Modern sidebar navigation with responsive design
• ✅ Collapsible mobile menu for smaller screens
• ✅ Clean header with theme toggle and branding

Theme System

• ✅ Dark/Light/System theme toggle functionality
• ✅ Persistent theme preferences using next-themes
• ✅ Smooth transitions between themes

Dashboard Overview

• ✅ Statistics cards with trend indicators
• ✅ Recent activity feed with status badges
• ✅ Project progress tracking with visual progress bars
• ✅ Tabbed interface for different content views

User Management

• ✅ Complete user management interface
• ✅ User table with search and filtering capabilities
• ✅ Add/Edit/Delete user actions
• ✅ User statistics and metrics
• ✅ Role-based badges and status indicators

Settings & Profile

• ✅ Comprehensive settings page
• ✅ Profile management with avatar upload
• ✅ Notification preferences
• ✅ Appearance customization
• ✅ Security settings including 2FA setup
• ✅ Data privacy controls

🛠 Technical Improvements

Architecture

• ✅ Modular component structure in components/dashboard/
• ✅ Proper TypeScript configuration with path mapping
• ✅ Theme provider setup with proper typing
• ✅ Responsive design using Tailwind CSS breakpoints

UI/UX Enhancements

• ✅ Modern design language with consistent spacing
• ✅ Accessible color schemes for both light and dark themes
• ✅ Intuitive navigation patterns
• ✅ Loading states and interactive feedback
• ✅ Mobile-first responsive design

Code Quality

• ✅ ESLint compliance with proper error handling
• ✅ TypeScript strict mode configuration
• ✅ Clean import organization
• ✅ Reusable component patterns

📱 Pages Added

• / - Dashboard overview with stats and activity
• /users - User management interface
• /settings - Comprehensive settings page

🎨 Design System

• Consistent use of shadcn/ui components
• Proper spacing and typography hierarchy
• Accessible color contrast ratios
• Smooth animations and transitions

🧪 Testing

• ✅ Build process validates without errors
• ✅ TypeScript compilation successful
• ✅ ESLint compliance achieved
• ✅ Responsive design tested across breakpoints

This transformation provides a solid foundation for any admin dashboard application, with room for future enhancements like charts, data tables, and integration with backend APIs.

🤖 Generated with Claude Code