Requires the ListAccount policy. Creates an export job and returns its descriptor,
including a downloadUri that resolves once the job completes. The export is queued
immediately. Use M:Router.Api.Controllers.ClickController.OnGetExport(System.Guid,System.Threading.CancellationToken) to poll the job and M:Router.Api.Controllers.ClickController.OnDownloadExport(System.Guid,System.Threading.CancellationToken)
to fetch the file. Output format is taken from format (CSV, JSON or
Parquet; defaults to CSV).

🔐 Required permission: accounts.read