Migrate from lockbox to ActiveRecord encryption (1/2)

db/migrate/20250506125947_migrate_lockbox_data.rb

@@ -0,0 +1,11 @@
+class MigrateLockboxData < ActiveRecord::Migration[8.0]
+  def up
+    User.find_each do |user|
+      ln_account = user.ln_account
+      ln_password = user.ln_password
+      user.lndhub_username = ln_account
+      user.lndhub_password = ln_password
+      user.save!
+    end
+  end
+end