feat: Implement LiveCode module with WebSocket and SSE support

- Added config management using `useConfig` for environment variables.
- Created `LiveCode` class to manage WebSocket connections and routing.
- Implemented `SSEManager` for Server-Sent Events handling.
- Developed `WSSManager` for managing WebSocket connections with heartbeat functionality.
- Introduced `ReconnectingWebSocket` class for robust WebSocket client with automatic reconnection.
- Added test files for live application demonstrating WebSocket and TCP server integration.

assistant/src/server.ts

@@ -1,6 +1,6 @@
 import { useContextKey } from '@kevisual/context';
 import { app, assistantConfig, runtime } from './app.ts';
-import { proxyRoute, proxyWs } from './services/proxy/proxy-page-index.ts';
+import { proxyLivecodeWs, proxyRoute, proxyWs } from './services/proxy/proxy-page-index.ts';
 import './routes/index.ts';
 import './routes-simple/index.ts';
 
@@ -49,6 +49,7 @@ export const runServer = async (port: number = 51515, listenPath = '127.0.0.1')
     func: proxyRoute as any,
   },
   ...proxyWs(),
+  ...proxyLivecodeWs(),
     qwenAsr,
   ]);
   const manager = useContextKey('manager', new AssistantApp(assistantConfig, app));