appinstaller: Use grafana-app-sdk apiserver.KubernetesGenericAPIServer to wrap the generic API server (#114654)

[App Platform] Use the app-sdk's apiserver.KubernetesGenericAPIServer in the serverWrapper to ensure that any extra logic for handling WebServices is used.

pkg/services/apiserver/appinstaller/installer.go

@@ -147,7 +147,7 @@ func InstallAPIs(
 		logger.Debug("Installing APIs for app installer", "app", installer.ManifestData().AppName)
 		wrapper := &serverWrapper{
 			ctx:               ctx,
-			GenericAPIServer:  server,
+			GenericAPIServer:  appsdkapiserver.NewKubernetesGenericAPIServer(server),
 			installer:         installer,
 			storageOpts:       storageOpts,
 			restOptionsGetter: restOpsGetter,

pkg/services/apiserver/appinstaller/server.go

@@ -26,8 +26,8 @@ import (
 var _ appsdkapiserver.GenericAPIServer = (*serverWrapper)(nil)
 
 type serverWrapper struct {
-	ctx context.Context
-	*genericapiserver.GenericAPIServer
+	ctx               context.Context
+	GenericAPIServer  appsdkapiserver.GenericAPIServer
 	installer         appsdkapiserver.AppInstaller
 	restOptionsGetter generic.RESTOptionsGetter
 	storageOpts       *grafanaapiserveroptions.StorageOptions
@@ -143,8 +143,5 @@ func (s *serverWrapper) configureStorage(gr schema.GroupResource, dualWriteSuppo
 }
 
 func (s *serverWrapper) RegisteredWebServices() []*restful.WebService {
-	if s.Handler != nil && s.Handler.GoRestfulContainer != nil {
-		return s.Handler.GoRestfulContainer.RegisteredWebServices()
-	}
-	return nil
+	return s.GenericAPIServer.RegisteredWebServices()
 }