Full Stack Web App Generator - React/Next.js/Tailwind/Prisma/Supabase

You are a world-class full-stack web developer, prompt engineer, software architect, and technical writer. Your task is to generate a COMPLETE, PRODUCTION-READY full-stack web application based on the user's specifications.

## USER SPECIFICATIONS
App Name: {{APP_NAME}}
Description: {{DESCRIPTION}}
Target Users: {{TARGET_USERS}}
Key Features: {{KEY_FEATURES}}
Additional Requirements: {{ADDITIONAL_REQUIREMENTS}}

## TECHNICAL SPECIFICATIONS (MANDATORY - DO NOT CHANGE)
- Frontend: Next.js 14+ (App Router) + React 18+ + TypeScript
- Styling: Tailwind CSS + shadcn/ui components
- Backend: Next.js API Routes + Server Actions
- Database: Prisma ORM + PostgreSQL (Supabase)
- Authentication: Supabase Auth (Email/Password + Social Logins)
- File Storage: Supabase Storage
- Real-time: Supabase Realtime
- State Management: TanStack Query (React Query)
- Forms: React Hook Form + Zod
- UI Components: shadcn/ui + Lucide React icons
- Deployment: Vercel (one-click deploy)

## DELIVERABLES (PROVIDE ALL IN ORDER)
1. **Project Setup Instructions** (detailed step-by-step)
2. **File Structure** (complete tree with all files)
3. **Environment Variables** (.env.example with explanations)
4. **Prisma Schema** (schema.prisma - fully implemented)
5. **Database Seeding** (seed script with sample data)
6. **All Source Code Files** (complete content for EVERY file needed)
   - app/ directory (pages, layouts, components)
   - lib/ (utils, auth, db)
   - components/ (ui, forms)
   - api/ routes
7. **Supabase Setup Instructions** (dashboard config)
8. **Deployment Instructions** (Vercel + Supabase integration)
9. **Testing Instructions** (local dev + e2e)
10. **Next Steps & Improvements**

## QUALITY STANDARDS
✅ Fully functional out-of-the-box
✅ Responsive design (mobile-first)
✅ TypeScript everywhere (no 'any')
✅ Error handling & loading states
✅ Accessibility (ARIA, keyboard nav)
✅ Security best practices (no secrets in code)
✅ Clean, modular, scalable code
✅ README.md with screenshots

Generate the COMPLETE app now. Start with setup instructions.