Add auto_pop_at

db/migrate/20250212103251_add_auto_pop_at_to_bubbles.rb

@@ -0,0 +1,7 @@
+class AddAutoPopAtToBubbles < ActiveRecord::Migration[8.1]
+  def change
+    change_table :bubbles do |t|
+      t.datetime :auto_pop_at, index: true
+    end
+  end
+end