docs: add clean markdown version of all documentation pages (#11308)

* added route to book

* added to resources

* added route to ui

* added to user guide

www/apps/book/app/learn/fundamentals/plugins/create/page.mdx

@@ -205,40 +205,40 @@ You can now build your plugin's customizations. The following guide explains how
 <CardList
   items={[
     {
-      text: "Create a module",
-      link: "/learn/fundamentals/modules",
+      title: "Create a module",
+      href: "/learn/fundamentals/modules",
     },
     {
-      text: "Create a module link",
-      link: "/learn/fundamentals/module-links",
+      title: "Create a module link",
+      href: "/learn/fundamentals/module-links",
     },
     {
-      text: "Create a workflow",
-      link: "/learn/fundamentals/workflows",
+      title: "Create a workflow",
+      href: "/learn/fundamentals/workflows",
     },
     {
-      text: "Add a workflow hook",
-      link: "/learn/fundamentals/workflows/add-workflow-hook",
+      title: "Add a workflow hook",
+      href: "/learn/fundamentals/workflows/add-workflow-hook",
     },
     {
-      text: "Create an API route",
-      link: "/learn/fundamentals/api-routes",
+      title: "Create an API route",
+      href: "/learn/fundamentals/api-routes",
     },
     {
-      text: "Add a subscriber",
-      link: "/learn/fundamentals/events-and-subscribers",
+      title: "Add a subscriber",
+      href: "/learn/fundamentals/events-and-subscribers",
     },
     {
-      text: "Add a scheduled job",
-      link: "/learn/fundamentals/scheduled-jobs",
+      title: "Add a scheduled job",
+      href: "/learn/fundamentals/scheduled-jobs",
     },
     {
-      text: "Add an admin widget",
-      link: "/learn/fundamentals/admin/widgets",
+      title: "Add an admin widget",
+      href: "/learn/fundamentals/admin/widgets",
     },
     {
-      text: "Add an admin UI route",
-      link: "/learn/fundamentals/admin/ui-routes",
+      title: "Add an admin UI route",
+      href: "/learn/fundamentals/admin/ui-routes",
     }
   ]}
   className="mb-1.5"

www/apps/book/app/learn/page.mdx

@@ -72,7 +72,7 @@ Below are some stories from companies that use Medusa:
 
 This documentation introduces you to Medusa's concepts and how they help you build your business use case. The documentation is structured to gradually introduce Medusa's concepts, with easy-to-follow examples along the way.
 
-By following this documentation, you’ll be able to create custom commerce experiences that would otherwise take large engineering teams months to build.
+By following this documentation, you'll be able to create custom commerce experiences that would otherwise take large engineering teams months to build.
 
 ### How to use the documentation
 

www/apps/book/app/learn/storefront-development/page.mdx

@@ -13,11 +13,11 @@ You can build your storefront from scratch with your preferred tech stack, or st
 <CardList
   items={[
     {
-      text: "Install Next.js Starter Storefront",
+      title: "Install Next.js Starter Storefront",
       href: "!resources!/nextjs-starter"
     },
     {
-      text: "Build Custom Storefront",
+      title: "Build Custom Storefront",
       href: "!resources!/storefront-development"
     }
   ]}

www/apps/book/app/md-content/[...slug]/route.ts

@@ -0,0 +1,75 @@
+import { getCleanMd } from "docs-utils"
+import { existsSync } from "fs"
+import { unstable_cache } from "next/cache"
+import { notFound } from "next/navigation"
+import { NextRequest, NextResponse } from "next/server"
+import path from "path"
+import {
+  addUrlToRelativeLink,
+  crossProjectLinksPlugin,
+  localLinksRehypePlugin,
+} from "remark-rehype-plugins"
+import type { Plugin } from "unified"
+
+type Params = {
+  params: Promise<{ slug: string[] }>
+}
+
+export async function GET(req: NextRequest, { params }: Params) {
+  const { slug } = await params
+
+  // keep this so that Vercel keeps the files in deployment
+  const basePath = path.join(process.cwd(), "app")
+  const filePath = path.join(basePath, ...slug, "page.mdx")
+
+  if (!existsSync(filePath)) {
+    return notFound()
+  }
+
+  const cleanMdContent = await getCleanMd_(filePath, {
+    before: [
+      [
+        crossProjectLinksPlugin,
+        {
+          baseUrl: process.env.NEXT_PUBLIC_BASE_URL,
+          projectUrls: {
+            resources: {
+              url: process.env.NEXT_PUBLIC_RESOURCES_URL,
+            },
+            "user-guide": {
+              url: process.env.NEXT_PUBLIC_RESOURCES_URL,
+            },
+            ui: {
+              url: process.env.NEXT_PUBLIC_RESOURCES_URL,
+            },
+            api: {
+              url: process.env.NEXT_PUBLIC_RESOURCES_URL,
+            },
+          },
+          useBaseUrl:
+            process.env.NODE_ENV === "production" ||
+            process.env.VERCEL_ENV === "production",
+        },
+      ],
+      [localLinksRehypePlugin],
+    ] as unknown as Plugin[],
+    after: [
+      [addUrlToRelativeLink, { url: process.env.NEXT_PUBLIC_BASE_URL }],
+    ] as unknown as Plugin[],
+  })
+
+  return new NextResponse(cleanMdContent, {
+    headers: {
+      "Content-Type": "text/markdown",
+    },
+  })
+}
+
+const getCleanMd_ = unstable_cache(
+  async (filePath: string, plugins?: { before?: Plugin[]; after?: Plugin[] }) =>
+    getCleanMd({ filePath, plugins }),
+  ["clean-md"],
+  {
+    revalidate: 3600,
+  }
+)