Add the attribute for a avatar image url for Author.

priv/repo/migrations/20250316064910_update_author_to_add_avatar_url.exs

@@ -0,0 +1,21 @@
+defmodule DecentralisedBookIndex.Repo.Migrations.UpdateAuthorToAddAvatarUrl do
+  @moduledoc """
+  Updates resources based on their most recent snapshots.
+
+  This file was autogenerated with `mix ash_postgres.generate_migrations`
+  """
+
+  use Ecto.Migration
+
+  def up do
+    alter table(:authors) do
+      add :avatar_url, :text
+    end
+  end
+
+  def down do
+    alter table(:authors) do
+      remove :avatar_url
+    end
+  end
+end