feat: enhance security configuration and SSE management with robust token validation and client tracking

- Refactored `.env.example` with comprehensive security and configuration parameters
- Added new `security.config.ts` for centralized security configuration management
- Improved middleware with enhanced authentication, request validation, and error handling
- Updated SSE routes and manager with advanced client tracking, rate limiting, and connection management
- Implemented more granular token validation with IP-based rate limiting and connection tracking
- Added detailed error responses and improved logging for security-related events

README.md

@@ -499,6 +499,11 @@ bun run lint:fix
 - 🧪 Test coverage reports
 - 📝 Documentation generation
 
+## Author
+
+This project was initiated by [T T]() and is mainly developed by [Jango Blockchain](https://github.com/jango-blockchained).
+
+
 ## License
 
 MIT License - See [LICENSE](LICENSE) file