* remove nonnamespaced paths
* use common.Unstructed for Intergration.Settings
* update codeowners to include alerting
* fix json name of secure fields to start with lower case
* expose ngalert API to public
* add delete action to time-intervals
* introduce time-interval model generated by app-platform-sdk from CUE model the fields of the model are chosen to be compatible with the current model
* implement api server
* add feature flag alertingApiServer
---- Test Infra
* update helper to support creating custom users with enterprise permissions
* add generator for Interval model