nixos: Add domain to assignments

nixos/boxes/colony/vms/shill/containers/middleman.nix

@@ -7,6 +7,7 @@
       internal = {
         name = "middleman-ctr";
         altNames = [ "http" ];
+        domain = lib.my.colony.domain;
         ipv4.address = "${lib.my.colony.start.ctrs.v4}2";
         ipv6 = {
           iid = "::2";

nixos/boxes/colony/vms/shill/containers/vaultwarden.nix

@@ -6,6 +6,7 @@
     assignments = {
       internal = {
         name = "vaultwarden-ctr";
+        domain = lib.my.colony.domain;
         ipv4.address = "${lib.my.colony.start.ctrs.v4}3";
         ipv6 = {
           iid = "::3";