Perf system plugin and worker (#2126)

* perf: worker pool

* perf: worker register

* perf: worker controller

* perf: system plugin worker

* perf: system plugin worker

* perf: worker

* perf: worker

* worker timeout

* perf: copy icon

packages/service/worker/readFile/extension/html.ts

@@ -0,0 +1,13 @@
+import { ReadRawTextByBuffer, ReadFileResponse } from '../type';
+import { readFileRawText } from './rawText';
+import { html2md } from '../../htmlStr2Md/utils';
+
+export const readHtmlRawText = async (params: ReadRawTextByBuffer): Promise<ReadFileResponse> => {
+  const { rawText: html } = readFileRawText(params);
+
+  const rawText = html2md(html);
+
+  return {
+    rawText
+  };
+};