chore: refined control script

infra/modules/dns/variables.tf

@@ -4,11 +4,20 @@ variable "zone_names" {
 }
 
 variable "records" {
-  description = "A records to create across the zones in var.zone_names. Use name = \"@\" for the zone apex."
+  description = <<-EOT
+    Records to create across the zones in var.zone_names. Use name = "@" for
+    the zone apex. Entries sharing the same zone/name/type become a single
+    Hetzner RRSet with multiple values (e.g. two TXT strings under the same
+    name) - Hetzner has no concept of separate same-type records otherwise.
+    For MX, embed the priority in value using standard zonefile syntax (e.g.
+    "10 mail.example.com."); Hetzner's API has no separate priority field.
+    For TXT, wrap value in escaped double quotes (e.g. "\"v=spf1 ...\"").
+  EOT
   type = list(object({
     zone  = string
     name  = string
     value = string
+    type  = optional(string, "A")
     ttl   = optional(number, 300)
   }))
   default = []