This fix corrects the default recurring revenue value recorded in subscription sales order logs. It helps business reports reflect subscription revenue more accurately when log entries are created.

This change ensures the website live chat chatbot flow test can run reliably when demo data is not installed. It creates the needed portal user during the test, reducing build failures and improving confidence in release checks.

Before this PR, the `website_livechat_chatbot_flow_tour` was failing
in no-demo builds. This test uses the demo portal user, which is not
available in these cases. This PR fixes the issue by creating a portal
user for this test.

fixes runbot-65497