docs: fix OAS generator + generate OAS (#11584)

www/apps/api-reference/specs/admin/code_samples/Shell/admin_draft-orders_{id}/post.sh

@@ -0,0 +1,2 @@
+curl -X POST '{backend_url}/admin/draft-orders/{id}' \
+-H 'Authorization: Bearer {access_token}'

www/apps/api-reference/specs/admin/code_samples/Shell/admin_products_batch/post.sh

@@ -1,2 +1,7 @@
 curl -X POST '{backend_url}/admin/products/batch' \
--H 'Authorization: Bearer {access_token}'
+-H 'Authorization: Bearer {access_token}' \
+--data-raw '{
+  "delete": [
+    "prod_123"
+  ]
+}'