Frontend first draft

frontend/pshared/lib/models/permission_bound.dart

@@ -0,0 +1,22 @@
+import 'package:pshared/config/constants.dart';
+
+
+abstract class PermissionBound {
+  String get permissionRef;
+  String get organizationRef;
+}
+
+class _PermissionBoundImp implements PermissionBound {
+  @override
+  final String permissionRef;
+  @override
+  final String organizationRef;
+
+  const _PermissionBoundImp({
+    required this.permissionRef,
+    required this.organizationRef,
+  });
+}
+
+PermissionBound newPermissionBound({ required String organizationRef, String? permissionRef}) => 
+  _PermissionBoundImp(permissionRef: permissionRef ?? Constants.nilObjectRef, organizationRef: organizationRef);