Handle Rollback of Unauthorized Transactions

[jnnchi]

As a DEVELOPER, I want to handle rollbacks for unauthorized transactions to ensure that fraudulent activity is removed from a user’s transaction history and does not affect their carbon score.

A/C:

• Add an authorized/unauthorized attribute to Transaction table.
• When a transaction is marked as unauthorized, update the affected fields (e.g., EnvironmentalImpactInfo) to exclude these transactions.
• Test rollback functionality to ensure unauthorized transactions are removed correctly without affecting legitimate data.