A successful Scheduled Task install returned without removing an
existing Startup-folder Hermes_Gateway.vbs or legacy .cmd, and the
fallback path wrote a Startup entry even while a task was still
registered. Both fire at logon, so the gateway launched twice.
install() now removes Startup entries after the task registers, the
fallback is skipped while a task exists, and reconcile_autostart_launchers()
converges an existing install to one mechanism.
Co-authored-by: David Metcalfe <80915+DavidMetcalfe@users.noreply.github.com>
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