Investigate to observe Sui deposit and depositAndCall initiated from smart contracts

[lumtis]

Describe the Issue Currently only deposit and depostiAndCall initiated directly from the users to the gateway will be observed by the observer as it seems that the package that emits the event is the entrypoint from the user tx.

The currently solution is to create a PTB that combine the call to the gateway with the call to the custom smart contract but this can reduce developer experience.

We should spend more time to investigate if a solution for the deposits through smart contract can be supported for Sui