Is the money earned from my work transporting customers via ride-sharing apps (Uber and Careem) permissible or forbidden, knowing that I am a security officer and a directive has been issued prohibiting military personnel from engaging in this work?

The permissibility of money earned from delivering customers depends on the permissibility of the work itself. If the work is permissible, then the wage is permissible.

The sin of violating regulations is different from the permissibility of the wage. A person may sin by violating regulations even if their wage is permissible.

The ruling on adhering to the laws of the ruler (Wali al-Amr) in restricting permissible matters varies depending on the benefit. What contains a public benefit must be adhered to outwardly and inwardly. As for what does not, it must be adhered to outwardly if harm or discord is feared.