In practice, the civilian government of Cardassia has no control over the military. According to Gul Dukat, the Bajoran pullout was a civilian political decision that the military opposed, and that the decision to leave the orphans was made by the civilian leaders. Dr. Bashir and Garak visit the Tozak resettlement center on Bajor, the location that Rugal was taken during the withdrawal. Garak can repair computers. Children without parents have no status on Cardassia.
Coincidences happen every day.
But I don't trust coincidences. A Bajoran administrator named Jomat Lusan would have been the person to write the original fila about Rugal. Nor is the Cardassian name of the station. Notice the details. They're scattered like the crumbs all over this table.