chore(server): iex helper for host registration

server/lib/server/release.ex

@@ -0,0 +1,18 @@
+defmodule Server.Release do
+  @moduledoc "Convenience functions for IEx and future release tasks."
+
+  @doc "Create a host and print the plaintext token once."
+  def register_host(name) do
+    case Server.Hosts.create_host(name) do
+      {:ok, {host, token}} ->
+        IO.puts("Host '#{host.name}' registered (id=#{host.id}).")
+        IO.puts("TOKEN: #{token}")
+        IO.puts("Store this token NOW — it will never be shown again.")
+        {:ok, host, token}
+
+      {:error, cs} ->
+        IO.puts("Failed to register host: #{inspect(cs.errors)}")
+        {:error, cs}
+    end
+  end
+end