Added comprehensive tests for the functionality of creating, updating, and verifying billing orders and subscriptions in the Supabase database. Tests now ensure appropriate behavior of upsert operations, validation of inserted or updated data, and proper calculation of derived fields. This contributes to better coverage and confidence in the production-ready status of these features.
New test files for database functionalities like transfer of ownership, schema conditions, and updating roles have been added. Changes have also been made in the schema.sql file for checking the role hierarchy levels and updating rules for permissions. Modifications in account permissions test have also been performed for more accuracy.
