feat: add permissions on user create, CORS middleware, cors server playground.

projects/greenlight/docs/api/greenlight-bruno/Users/Create User.yml

@@ -10,8 +10,8 @@ http:
     type: json
     data: |-
       {
-        "name": "Bob",
-        "email": "bob@example.com",
+        "name": "Grace",
+        "email": "grace@example.com",
         "password": "pa55word"
       }
   auth: inherit