Return the path of the helper port file for this platform.
Honors NYORA_HELPER_PORT_FILE when set; otherwise uses the
platform-conventional application-data location (macOS Application Support,
Windows %APPDATA%, or the XDG config dir on Linux).
Returns string
The resolved port-file path (which may not yet exist).
Return the path of the helper port file for this platform.
Honors
NYORA_HELPER_PORT_FILEwhen set; otherwise uses the platform-conventional application-data location (macOS Application Support, Windows%APPDATA%, or the XDG config dir on Linux).