The security systems around work visually, so as look as she looks human, she'll pass as human! The same goes for most of the Drakstaden citizens; even the Vakdir don't typically carry around biometric scanners, so behavior is more likely to give someone away than their appearance. While the people of this world are used to robots and androids in general, they're usually more obviously metal, so it's safe to assume they'll think she's human.