feat: add AI-Generated NFT Minter example

[tuofangzhe]

🎨 feat: add AI-Generated NFT Minter example

📋 Project Information

• Project Name: AI-Generated NFT Minter
• Language: TypeScript/JavaScript
• Technologies: Next.js, Node.js, Solidity, Stability AI, IPFS
• Theme Match: "Mint AI-Generated Images On-Chain" ✅

🚀 What This Example Demonstrates

This example shows how to build a complete AI-powered NFT minting platform on BNB Smart Chain:

1. AI Image Generation: Integration with Stability AI for creating unique artwork
2. Smart Contract Deployment: ERC-721 NFT contract on BSC testnet
3. IPFS Storage: Decentralized storage using Pinata
4. Full-Stack Implementation: Modern tech stack with Next.js and Node.js
5. NFT Marketplace: Browse and view minted NFTs with pagination

💡 Key Features

• 🎨 Generate unique AI artwork from text prompts
• 🔗 Mint NFTs directly on BNB Smart Chain
• 📁 Store images and metadata on IPFS
• 🖼️ Browse NFT collection in marketplace
• 📱 Mobile-responsive design
• 🔐 Secure with OpenZeppelin contracts

🏗️ Architecture

ai-nft-minter/
├── frontend/      # Next.js 15 app with wagmi v2
├── backend/       # Node.js API server
├── contracts/     # Solidity smart contracts
└── README.md      # Complete setup guide

📦 Environment Setup

The example includes .env.example files for easy configuration:

• Frontend: Vercel deployment ready
• Backend: Railway/Render compatible
• Contracts: Hardhat deployment scripts

🎯 Perfect for BNB Chain Developers

This example is ideal for developers who want to:

• Learn AI integration with blockchain
• Build NFT applications on BNB Chain
• Understand full-stack Web3 development
• Deploy production-ready DApps

📊 Technical Stack

• Frontend: Next.js 15, React 19, TypeScript, Tailwind CSS v4
• Backend: Express 5, ethers.js v5, Stability AI SDK
• Smart Contracts: Solidity 0.8.28, OpenZeppelin v5
• Web3: wagmi v2, viem
• Storage: IPFS (Pinata)

🔐 Security

• OpenZeppelin standard contracts
• Environment variable protection
• Testnet deployment included
• No hardcoded secrets

📚 Documentation

Comprehensive documentation includes:

• Step-by-step setup guide
• Deployment instructions
• Architecture overview
• API documentation

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This submission aligns perfectly with the BNB Chain challenge theme "Mint AI-Generated Images On-Chain" and provides a complete, production-ready example for the community.