fix(refactor): remove deprecated Port80Handler and related utilities

- Deleted event-utils.ts which contained deprecated Port80Handler and its subscribers.
- Updated index.ts to remove the export of event-utils.
- Refactored ConnectionManager to extend LifecycleComponent for better resource management.
- Added BinaryHeap implementation for efficient priority queue operations.
- Introduced EnhancedConnectionPool for managing pooled connections with lifecycle management.
- Implemented LifecycleComponent to manage timers and event listeners automatically.
- Added comprehensive tests for BinaryHeap and LifecycleComponent to ensure functionality.

ts/core/utils/index.ts

@@ -2,7 +2,6 @@
  * Core utility functions
  */
 
-export * from './event-utils.js';
 export * from './validation-utils.js';
 export * from './ip-utils.js';
 export * from './template-utils.js';
@@ -10,8 +9,10 @@ export * from './route-manager.js';
 export * from './route-utils.js';
 export * from './security-utils.js';
 export * from './shared-security-manager.js';
-export * from './event-system.js';
 export * from './websocket-utils.js';
 export * from './logger.js';
 export * from './async-utils.js';
 export * from './fs-utils.js';
+export * from './lifecycle-component.js';
+export * from './binary-heap.js';
+export * from './enhanced-connection-pool.js';