Add reusable Terraform modules and per-environment configs (dev/uat/prod)
in us-west-2 covering: VPC (3 AZ public/private), EKS 1.29 with IRSA and
ALB/EBS/EFS CSI add-ons, RDS PostgreSQL 15, four ECR repos, IAM roles
(EKS node, ALB controller IRSA, GitHub Actions OIDC), Route53 + ACM for
samosachaat.art, and EFS for model weights. State backend on S3
(samosachaat-terraform-state) with DynamoDB lock table.
terraform validate passes for dev, uat, and prod.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
