en-platform-engineer (tenant accounts): Implement Terraform (adapt from #227 module)

[jordanpadams]

Summary

Adapt the reusable Terraform module from #227 to deploy the en-platform-engineer role in each tenant (node) account.

Tasks

• Adapt PDC Role Definitions: Redesign en-platform-engineer Role in CDS-Test and CDS-Prod (SCIP Architecture) #227 Terraform module for tenant account deployment (parameterized by account/node)
• Validate Terraform plan against tenant account structure
• Code review with team

Dependencies

Blocked by #227 TF module completion and permissions identification for this theme.

Parent Theme

Part of #233