locals {
  tags = merge(
    {
      "nova:owner"       = "nova"
      "nova:environment" = "dev"
    },
    var.tags,
  )

  # Target group requires a vpc_id. The L1 interface does not expose it as
  # an input by design (kept minimal per D-014); the caller is expected to
  # supply subnets in a single VPC. When a vpc_id input is added later, this
  # local can be removed. For now, null forces the caller to set it via a
  # provider-level default or an extension.
  vpc_id = null
}