Admin module: integrate with clan app

clanModules/admin/default.nix

@@ -2,9 +2,12 @@
 {
   options.clan.admin = {
     allowedKeys = lib.mkOption {
-      default = [ ];
-      type = lib.types.listOf lib.types.str;
+      default = { };
+      type = lib.types.attrsOf lib.types.str;
       description = "The allowed public keys for ssh access to the admin user";
+      example = {
+        "key_1" = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQD...";
+      };
     };
   };
   imports = [
@@ -12,6 +15,6 @@
     ../root-password
   ];
   config = {
-    users.users.root.openssh.authorizedKeys.keys = config.clan.admin.allowedKeys;
+    users.users.root.openssh.authorizedKeys.keys = builtins.attrValues config.clan.admin.allowedKeys;
   };
 }