move hierarchy to fiori

fiori/app/admin-books/fiori-service.cds

@@ -1,6 +1,13 @@
 using { AdminService } from '@capire/bookstore';
+using { sap.capire.bookshop } from '../../db/hierarchy';
 using from '../common'; // to help UI linter get the complete annotations
 
+extend service AdminService with {
+  @readonly 
+  @cds.search: {name}
+  entity GenreHierarchy as projection on bookshop.Genres;
+}
+
 ////////////////////////////////////////////////////////////////////////////
 //
 //	Books Object Page

fiori/app/common.cds

@@ -85,10 +85,6 @@ annotate my.Genres with @(
     }
 );
 
-annotate my.Genres with {
-  ID  @Common.Text : name  @Common.TextArrangement : #TextOnly;
-}
-
 ////////////////////////////////////////////////////////////////////////////
 //
 //	Genre Details

fiori/db/hierarchy.cds

@@ -0,0 +1,32 @@
+namespace sap.capire.bookshop;
+using { sap.capire.bookshop.Genres } from '@capire/bookshop';
+
+aspect Hierarchy {
+  LimitedDescendantCount : Integer64 = null;
+  DistanceFromRoot       : Integer64 = null;
+  DrillState             : String = null;
+  Matched                : Boolean = null;
+  MatchedDescendantCount : Integer64 = null;
+  LimitedRank            : Integer64 = null;
+}
+
+
+annotate Hierarchy with @Capabilities.FilterRestrictions.NonFilterableProperties: [
+  'LimitedDescendantCount',
+  'DistanceFromRoot',
+  'DrillState',
+  'Matched',
+  'MatchedDescendantCount',
+  'LimitedRank'
+];
+
+annotate Hierarchy with @Capabilities.SortRestrictions.NonSortableProperties: [
+  'LimitedDescendantCount',
+  'DistanceFromRoot',
+  'DrillState',
+  'Matched',
+  'MatchedDescendantCount',
+  'LimitedRank'
+];
+
+extend sap.capire.bookshop.Genres with Hierarchy;