feat: enhance API and middleware functionality: add public API routes, implement program and course member checks, and improve rate limiting for invite acceptance. Update OpenAPI spec generation to focus on public API endpoints and add new middleware for automation key scopes. Include new documentation for lesson AI features and public API tests.

apps/docs/app/routes/api-reference.ts

@@ -0,0 +1,18 @@
+import { getHtmlDocument } from '@scalar/core/libs/html-rendering';
+
+const publicApiSpecUrl = 'https://api.cdn.clsrio.com/openapi/public-api/openapi-latest.json';
+
+export function loader() {
+  return new Response(
+    getHtmlDocument({
+      url: publicApiSpecUrl,
+      pageTitle: 'ClassroomIO Public API Reference',
+      theme: 'none'
+    }),
+    {
+      headers: {
+        'content-type': 'text/html; charset=utf-8'
+      }
+    }
+  );
+}