refactor: reorganize GitOps control plane

iac/terraform/modules/vault-policy-set/main.tf

@@ -0,0 +1,11 @@
+resource "vault_policy" "this" {
+  for_each = var.policies
+
+  name   = each.key
+  policy = each.value
+}
+
+output "names" {
+  description = "Policy names keyed by their requested names."
+  value       = { for name, policy in vault_policy.this : name => policy.name }
+}