docs: add prepare script to generate sidebar (#11894)

www/apps/api-reference/utils/read-spec-document.ts

@@ -1,8 +1,8 @@
 import { promises as fs } from "fs"
-import { OpenAPIV3 } from "openapi-types"
+import { OpenAPI } from "types"
 import { parseDocument } from "yaml"
 
 export default async function readSpecDocument(filePath: string) {
   const fileContent = await fs.readFile(filePath, "utf-8")
-  return parseDocument(fileContent).toJS() as OpenAPIV3.PathItemObject
+  return parseDocument(fileContent).toJS() as OpenAPI.OpenAPIV3.PathItemObject
 }