Yaltopia-Ticket-Email/CHANGELOG.md

Changelog

v1.0.0 - Production Ready Release

✨ New Features

• Production API Server: Express.js server with TypeScript
• Security: Input validation, rate limiting, CORS protection
• Monitoring: Health checks, structured logging, error tracking
• Docker Support: Complete containerization with docker-compose
• Documentation: Comprehensive API and deployment guides

🛡️ Security Improvements

• Input validation with Zod schemas
• Rate limiting (configurable, default 10/15min)
• Security headers (Helmet.js)
• Privacy-protected logging (email/IP masking)
• Environment variable management
• CORS restrictions

📊 Monitoring & Logging

• Structured JSON logging
• Health check endpoint (/health)
• Request/response logging
• Error tracking with correlation IDs
• Performance metrics

🏗️ Architecture Changes

• Clean separation of frontend (template designer) and backend (API)
• TypeScript throughout
• Configuration management
• Service layer architecture
• Comprehensive error handling

📚 Documentation Cleanup

• Consolidated: Reduced from 7 docs to 4 focused guides
• Organized: Moved all docs to /docs folder
• Comprehensive: Complete API reference with examples
• Practical: Step-by-step deployment instructions

🔧 Developer Experience

• Hot reload development servers
• Type checking scripts
• Linting and validation
• Docker development environment
• Clear npm scripts

📁 File Structure Changes

Before:                          After:
├── README.md                   ├── README.md (clean, focused)
├── ARCHITECTURE_GUIDE.md       ├── docs/
├── RESEND_INTEGRATION.md       │   ├── README.md
├── SIMPLE_INTEGRATION_EXAMPLE  │   ├── API.md
├── PRODUCTION_DEPLOYMENT.md    │   ├── DEPLOYMENT.md
├── PRODUCTION_READY_SUMMARY    │   ├── PRODUCTION_DEPLOYMENT.md
├── SECURITY_IMPROVEMENTS.md    │   └── SECURITY.md
├── backend-example.js          ├── server.ts (production server)
└── ...                         └── ...

🚀 Deployment Options

• Docker: docker-compose up -d
• Node.js: npm start
• Cloud: Vercel, Railway, Heroku ready

Breaking Changes

• Removed development-only backend example
• Consolidated documentation (old links may break)
• Environment variables now required for production

Migration Guide

1. Copy .env.example to .env
2. Add your Resend API key and domain
3. Use npm run server:dev instead of old backend example
4. Update documentation links to /docs folder

---

Previous Versions

v0.1.0 - Initial Release

• Basic React template designer
• Sample email templates
• Development-only features