use PROGRAMDATA not APPDATA for zet as a Windows service

[dovholuknf]

While APPDATA is the generally recommended location for storing app-related information, when running as a windows service this location will be located in the system profile for windows. Windows can decide to remove/clean this location on upgrades, such as what appears to have happened to me during the 24H2 update. See openziti/desktop-edge-win#795

Change the default location away from APPDATA and instead use PROGRAMDATA. Ensure the directories generated/used all require administrator permissions in order to access the files.