docs: generate OAS manually for 2.7.0 (#12158)

* original changes

* changes

* fixes for delete operations

* generate oas

www/apps/api-reference/specs/admin/paths/admin_fulfillments.yaml

@@ -32,6 +32,10 @@ post:
         schema:
           $ref: ../components/schemas/AdminCreateFulfillment.yaml
   x-codeSamples:
+    - lang: JavaScript
+      label: JS SDK
+      source:
+        $ref: ../code_samples/JavaScript/admin_fulfillments/post.js
     - lang: Shell
       label: cURL
       source: