[REFACTOR] Move all hacks and new calls into the akeneo client library

[0xfrej]

During rapid development, many hacks and additional features were added to the project. We need to clean up the codebase by moving these modifications into the Akeneo Client Library. This will also help us eliminate the current dependency on a fork of the library.

Acceptance Criteria:

- Refactor and integrate these changes into the upstream library
- Ensure the project no longer relies on a fork of the library.
- Update project dependencies to point to the upstream library after changes are merged.
- Test thoroughly to ensure nothing breaks after the integration.

Resources:

[Akeneo Client Library GitHub](https://github.com/ezifyio/go-akeneo)