Migrate Portal to ECS

Deploy Portal application to ECS on EC2 in new account structure.

• Create ECS cluster and service definitions via IaC
• Configure task definitions with appropriate resource limits
• Set up Application Load Balancer with health checks
• Configure networking (VPC, security groups, subnets)
• Set up ECR repository for Portal container images
• Update CI/CD pipeline to build and deploy to ECS
• Configure environment variables and secrets
• Set up logging (CloudWatch) and monitoring
• Implement auto-scaling policies
• DNS cutover to new deployment

Open questions:

• What is the current Portal deployment method?
• What are the resource requirements (CPU, memory, instance type)?
• What is the scaling policy (min/max instances)?