Add record format (defaulting to CD)

priv/repo/migrations/20240928175157_add_format_to_records.exs

@@ -0,0 +1,9 @@
+defmodule MusicLibrary.Repo.Migrations.AddFormatToRecords do
+  use Ecto.Migration
+
+  def change do
+    alter table(:records) do
+      add :format, :string, default: "cd"
+    end
+  end
+end