Merge pull request #58 from amatsuda/add_message_id_header_and_parent_id_to_message

add_message_id_header_and_parent_id_to_message

Author: amatsuda

db/migrate/20251010153708_add_message_id_header_and_parent_id_to_message.rb

@@ -0,0 +1,6 @@
+class AddMessageIdHeaderAndParentIdToMessage < ActiveRecord::Migration[7.1]
+  def change
+    add_column :messages, :message_id_header, :string
+    add_column :messages, :parent_id, :integer
+  end
+end