Add index to speed up records by release date

priv/repo/migrations/20260313162012_add_records_release_date_index.exs

@@ -0,0 +1,9 @@
+defmodule MusicLibrary.Repo.Migrations.AddRecordsReleaseDateIndex do
+  use Ecto.Migration
+
+  def change do
+    # Supports ORDER BY release_date DESC (collection, wishlist, search results)
+    # and strftime filtering in Collection.get_records_on_this_day/1
+    create index(:records, [:release_date])
+  end
+end