feat(sdk,client): add menu to help navigation between apps

pkg/module/app/memory/repository.go

@@ -44,6 +44,10 @@ func (r *Repository) List(ctx context.Context) ([]*app.Manifest, error) {
 }
 
 func NewRepository(getURL GetURLFunc, manifests ...*app.Manifest) *Repository {
+	if manifests == nil {
+		manifests = make([]*app.Manifest, 0)
+	}
+
 	return &Repository{getURL, manifests}
 }