Teardown

Status: thin, carried over from an earlier draft, not verified against current dev-sgp/prod-sgp state. Flagged in the open items index — treat as a starting checklist, not a confirmed procedure, until someone runs it against a real region.

Drain workspaces → remove Cloudflare KV entry → delete ArgoCD apps → tofu destroy. The shared root CA and global Cloudflare layer are unaffected.