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

www/apps/api-reference/lib/index.ts

@@ -1,10 +1,10 @@
 "use server"
 
-import { Area, ExpandedDocument } from "../types/openapi"
+import { OpenAPI } from "types"
 
 const URL = `${process.env.NEXT_PUBLIC_BASE_URL}${process.env.NEXT_PUBLIC_BASE_PATH}`
 
-export async function getBaseSpecs(area: Area) {
+export async function getBaseSpecs(area: OpenAPI.Area) {
   try {
     const res = await fetch(`${URL}/base-specs?area=${area}`, {
       next: {
@@ -13,7 +13,7 @@ export async function getBaseSpecs(area: Area) {
       },
     }).then(async (res) => res.json())
 
-    return res as ExpandedDocument
+    return res as OpenAPI.ExpandedDocument
   } catch (e) {
     console.error(e)
   }