cleaned up

bookshop/srv/cat-service.cds

@@ -1,13 +1,12 @@
 using { sap.capire.bookshop as my } from '../db/schema';
 
-@path:'/browse'
-service CatalogService {
+service CatalogService @(path:'/browse') {
 
   @readonly entity Books as SELECT from my.Books {*,
     author.name as author
   } excluding { createdBy, modifiedBy };
 
   @requires_: 'authenticated-user'
-  @insertonly entity Orders as projection on my.Orders;
+  action order (book : Books.ID, amount: Integer);
 
 }