Insert default purchased_at date when importing a record

priv/repo/migrations/20241019180421_add_purchased_at_to_records.exs

@@ -0,0 +1,9 @@
+defmodule MusicLibrary.Repo.Migrations.AddPurchasedAtToRecords do
+  use Ecto.Migration
+
+  def change do
+    alter table(:records) do
+      add :purchased_at, :utc_datetime
+    end
+  end
+end