Change TxOwner to return error data in execuate_transaction

Currently, the `execuate_transaction` of `TxOwner` does not return the actual error data that is needed in debugging or logging. `execuate_transaction` should return errors data.

Start by locating TxOwner's execuate_transaction entry point and trace how transaction failures are currently handled. Update the behavior so the actual error data is returned for debugging or logging, then verify that callers receive the error information without breaking transaction handling.

Scritto dal modello di indicizzazione a partire dal testo della issue.