Messages to completions conversion

db/migrate/20250515061619_add_author_to_message.rb

@@ -0,0 +1,12 @@
+class AddAuthorToMessage < ActiveRecord::Migration[8.0]
+  def change
+    add_column :messages, :author, :string
+
+    Message.find_each do |message|
+      message.author = "Unknown"
+      message.save
+    end
+
+    change_column_null :messages, :author, true
+  end
+end

db/migrate/20250515062154_add_display_time_to_message.rb

@@ -0,0 +1,12 @@
+class AddDisplayTimeToMessage < ActiveRecord::Migration[8.0]
+  def change
+    add_column :messages, :display_time, :string
+
+    Message.find_each do |message|
+      message.display_time = "12:30"
+      message.save
+    end
+
+    change_column_null :messages, :display_time, true
+  end
+end