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/xlsx.ts

@@ -0,0 +1,46 @@
+import { CUSTOM_SPLIT_SIGN } from '@fastgpt/global/common/string/textSplitter';
+import { ReadRawTextByBuffer, ReadFileResponse } from '../type';
+import xlsx from 'node-xlsx';
+import Papa from 'papaparse';
+
+export const readXlsxRawText = async ({
+  buffer
+}: ReadRawTextByBuffer): Promise<ReadFileResponse> => {
+  const result = xlsx.parse(buffer, {
+    skipHidden: false,
+    defval: ''
+  });
+
+  const format2Csv = result.map(({ name, data }) => {
+    return {
+      title: `#${name}`,
+      csvText: data.map((item) => item.join(',')).join('\n')
+    };
+  });
+
+  const rawText = format2Csv.map((item) => item.csvText).join('\n');
+
+  const formatText = format2Csv
+    .map((item) => {
+      const csvArr = Papa.parse(item.csvText).data as string[][];
+      const header = csvArr[0];
+
+      if (!header) return;
+
+      const formatText = `| ${header.join(' | ')} |
+      | ${header.map(() => '---').join(' | ')} |
+      ${csvArr
+        .slice(1)
+        .map((row) => `| ${row.map((item) => item.replace(/\n/g, '\\n')).join(' | ')} |`)
+        .join('\n')}`;
+
+      return formatText;
+    })
+    .filter(Boolean)
+    .join(CUSTOM_SPLIT_SIGN);
+
+  return {
+    rawText: rawText,
+    formatText
+  };
+};