SDK 50 maintainance

[tuantran1702]

Description

We would like to introduce OrbitLabs, a team comprised of former Notional employees. We are committed to continuing the maintenance and development of Fee Abstraction module, leveraging our deep understanding of the module gained through our extensive work with it. Our goal is to enhance the module's robustness, making it an attractive and reliable option for others to consider integrating into their projects.

\cc @sunnya97 @hoank101

TODO

• Improve coverage for feeabs, develop additional unit tests to cover edge cases and complex scenarios.