[Docs] Illustrate cloud/spaces/environments with prod-aws and prod-gcp environment setup

[leecalcote]

Overview

Update cloud/spaces/environments to use Five connecting prod-aws (EKS + RDS + S3 + CloudFront + SQS) and prod-gcp (GKE + Cloud SQL + Cloud Storage + Pub/Sub) as the primary multi-cloud environment examples.

Tasks

• Add scenario: Five connects the prod-aws environment (EKS, RDS, S3, CloudFront, SQS)
• Add scenario: Five connects the prod-gcp environment (GKE, Cloud SQL, Cloud Storage, Pub/Sub)
• Show both environments assigned to the orbital-production workspace
• Add screenshots per screenshot standards at /cloud/about/five-narrative-plan
• Link to /cloud/about for cast context

Reference

• Narrative: /cloud/about
• Difficulty: Medium