feat(docs): initial interactive ckanaction docs web app

docs/app/(home)/page.tsx

@@ -0,0 +1,19 @@
+import Link from 'next/link';
+
+export default function HomePage() {
+  return (
+    <main className="flex flex-1 flex-col justify-center text-center">
+      <h1 className="mb-4 text-2xl font-bold">ckanaction</h1>
+      <p className="text-fd-muted-foreground">
+        You can open{' '}
+        <Link
+          href="/docs"
+          className="text-fd-foreground font-semibold underline"
+        >
+          /docs
+        </Link>{' '}
+        and see the interactive documentation.
+      </p>
+    </main>
+  );
+}