Ticket 2::6 Real-time Transaction Synchronization

[Blindspot22]

Description:
Enable real-time synchronization of user transactions from connected financial accounts to the app. Ensure that transactions are updated promptly to provide users with an up-to-date view of their financial activities.

Tasks:

1. Develop a mechanism to subscribe to real-time transaction updates from financial institutions.
2. Implement a queue-based system to process and synchronize transactions in near real-time.
3. Test transaction synchronization with multiple financial institutions to ensure reliability and consistency.