Refactor ASR module and remove deprecated AliAsrServer

- Introduced AsrRelatime class for real-time ASR using WebSocket.
- Removed AliAsrServer and related files from the aliyun provider.
- Updated base class for ASR to use WSServer for WebSocket connections.
- Added new test cases for the updated ASR functionality.
- Cleaned up unused imports and files across the project.
- Adjusted TypeScript configuration for better module resolution.
- Implemented silence generation for audio streaming.

src/ws/index.ts

@@ -0,0 +1,42 @@
+const isBrowser = (typeof process === 'undefined') || 
+  (typeof window !== 'undefined' && typeof window.document !== 'undefined') || 
+  (typeof process !== 'undefined' && process?.env?.BROWSER === 'true');
+const chantHttpToWs = (url: string) => {
+  if (url.startsWith('http://')) {
+    return url.replace('http://', 'ws://');
+  }
+  if (url.startsWith('https://')) {
+    return url.replace('https://', 'wss://');
+  }
+  return url;
+};
+type WebSocketOptions = {
+  /**
+   * 是否拒绝不安全的证书, in node only
+   */
+  rejectUnauthorized?: boolean;
+  headers?: Record<string, string>;
+  [key: string]: any;
+};
+export const initWs = async (url: string, options?: WebSocketOptions) => {
+  let ws: WebSocket;
+  url = chantHttpToWs(url);
+  if (isBrowser) {
+    ws = new WebSocket(url);
+  } else {
+    const WebSocket = await import('ws').then((module) => module.default);
+    const { rejectUnauthorized, headers, ...rest } = options || {};
+    ws = new WebSocket(url, {
+      rejectUnauthorized: rejectUnauthorized ?? true,
+      headers: headers,
+      ...rest,
+    }) as any;
+  }
+  return ws;
+};
+export interface EventEmitterOptions {
+  /**
+   * Enables automatic capturing of promise rejection.
+   */
+  captureRejections?: boolean | undefined;
+}