feat(ansible): idempotent role-based host config for both production VMs

common/firewall/docker-tls/platform/lab-host/monitoring-agent/backup roles, orchestrated by site.yml with the ordering that matters (firewall/TLS land before the services that depend on them). Ansible Vault for secrets, no new tool introduced for this project's modest secret surface. Explicit dev/staging/production environment separation, no secrets committed (.gitignore covers vault plaintext, TLS keys, Terraform state, *.env). Validated: ansible-playbook --syntax-check clean.
2026-08-18 17:13:01 -05:00
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+# Dev environment
+
+Nothing new here for Phase 4 — dev still means `platform/docker-compose.dev.yml` +
+`platform/.env` (gitignored), exactly as built in Phases 1–3B. See `platform/README.md`.
+
+This directory exists only so `infra/environments/` visibly has all three tiers, not because
+dev needed new infrastructure code.