Convert Account::SingleUserExport to User::DataExport

db/migrate/20251212164543_add_type_to_account_exports.rb

@@ -1,5 +0,0 @@
-class AddTypeToAccountExports < ActiveRecord::Migration[8.2]
-  def change
-    add_column :account_exports, :type, :string
-  end
-end

db/migrate/20251223000001_rename_account_exports_to_exports.rb

@@ -0,0 +1,7 @@
+class RenameAccountExportsToExports < ActiveRecord::Migration[8.2]
+  def change
+    rename_table :account_exports, :exports
+    add_column :exports, :type, :string
+    add_index :exports, :type
+  end
+end