You're responsible for managing firewall policies across your organization's Google Cloud environment, which includes multiple projects and VPCs. The security team has issued strict guidelines: Allow SSH (TCP port 22) access only from your company’s corporate IP address. Block SSH access from all other sources. Ensure that no VPC-level firewall rules can override or bypass these security controls. You need to implement a solution that enforces this policy consistently across the organization. What should you do?