* initial refactor
* add scoredUp and scoredDown values for habits history entries, one entry per habit per day
* fix lint and add initial migration
* update old test
* remove scoreNotes
* dry run for migration
* migration fixes
* update migration and remove old test
* fix
* add challenges migration (read only)
* fix challenges migration
* handle custom day start
* update tasks in migration
* scoring: support cds
* add new test