You manage a mission-critical SQL Server 2022 workload running on Azure VMs in the East US region. Leadership defines a disaster recovery requirement of RPO = 0 (no data loss on failover) and an RTO of a few minutes, and the solution must protect against a full regional outage. You already have a two-node Always On availability group with synchronous-commit replicas within East US. Which change best meets the cross-region RPO = 0 requirement?