feat: add Emails.Metrics for account-level email metrics
Merged
DI
3mo ago+725+725+012345678901234567890123456789-0-0-0123456789
Adds Emails.MetricsWithOptions for account-level email metrics via GET /emails/metrics — period/domain/email/broadcast dimensions, domain_id/email_id/broadcast_id filters (broadcast and email mutually exclusive), hourly/daily/weekly/monthly granularity.
Mirrors https://github.com/resend/resend-node/pull/1079. Spec: https://github.com/resend/resend-openapi/pull/96