docs: restructure api-reference to allow base path (#7954)

www/apps/api-reference/app/admin/page.tsx

@@ -0,0 +1,42 @@
+import AreaProvider from "@/providers/area"
+import AdminContentV2 from "../_mdx/admin.mdx"
+import ClientLibrariesV2 from "../_mdx/client-libraries.mdx"
+import Section from "@/components/Section"
+import Tags from "@/components/Tags"
+import DividedLayout from "@/layouts/Divided"
+import PageTitleProvider from "@/providers/page-title"
+
+const ReferencePage = async () => {
+  return (
+    <AreaProvider area={"admin"}>
+      <PageTitleProvider>
+        <h1 className="!text-h2 block lg:hidden">
+          Medusa V2 Admin API Reference
+        </h1>
+        <DividedLayout
+          mainContent={
+            <Section>
+              <h1 className="!text-h2 hidden lg:block">
+                Medusa V2 Admin API Reference
+              </h1>
+              <AdminContentV2 />
+            </Section>
+          }
+          codeContent={<ClientLibrariesV2 />}
+          className="flex-col-reverse"
+        />
+        <Tags />
+      </PageTitleProvider>
+    </AreaProvider>
+  )
+}
+
+export default ReferencePage
+
+export function generateMetadata() {
+  return {
+    title: `Medusa Admin API Reference`,
+    description: `REST API reference for the Medusa admin API. This reference includes code snippets and examples for Medusa JS Client and cURL.`,
+    metadataBase: process.env.NEXT_PUBLIC_BASE_URL,
+  }
+}