Apps: Add Example App to ./apps (#112069)

* [API Server] Add Example App for reference use.

* Remove Printlns.

* Upgrade app-sdk to v0.46.0, update apps to handle breaking changes.

* Only start the reconciler for the example app if the v1alpha1 API version is enabled.

* Some comment doc updates.

* Run make update-workspace

* Set codeowner for /apps/example

* Run make gofmt and make update-workspace

* Run prettier on apps/example/README.md

* Add COPY apps/example to Dockerfile

* Add an authorizer to the example app.

* Fix import ordering.

* Update apps/example/kinds/manifest.cue

Co-authored-by: Owen Diehl <ow.diehl@gmail.com>

* Run make update-workspace

* Re-run make gen-go for enterprise import updates

* Run make update-workspace

---------

Co-authored-by: Owen Diehl <ow.diehl@gmail.com>

pkg/services/apiserver/appinstaller/server.go

@@ -116,6 +116,13 @@ func (s *serverWrapper) configureStorage(gr schema.GroupResource, dualWriteSuppo
 		return statusStore
 	}
 
+	// if the storage is a subresource store, we need to extract the underlying generic registry store
+	if subresourceStore, ok := storage.(*appsdkapiserver.SubresourceREST); ok {
+		subresourceStore.Store.KeyFunc = grafanaregistry.NamespaceKeyFunc(gr)
+		subresourceStore.Store.KeyRootFunc = grafanaregistry.KeyRootFunc(gr)
+		return subresourceStore
+	}
+
 	return storage
 }