Implement Security Features

[davideme]

Add comprehensive security features to the TypeScript implementation.

Tasks:

• Implement authentication:
  • JWT-based authentication
  • API key support
  • OAuth2 integration (optional)
• Add authorization:
  • Role-based access control
  • Permission system
  • Middleware for protected routes
• Enhance security headers:
  • CSP
  • HSTS
  • XSS protection
  • CSRF protection
• Add security monitoring:
  • Audit logging
  • Security event tracking
  • Intrusion detection
• Implement rate limiting for security
• Add security documentation
• Set up security scanning in CI

Related to main TypeScript implementation issue.