fix(status): read a missing state file as off, not down

statusctl watch reported class "down" for a missing state file and waybar's presentation rule drew a warning for it. That fires on every fresh session, before anything has written a file, which is the normal off state the registry's own invariant describes. The state was meant to flag a dead registry, but a crashed shell leaves a stale present file, not a missing one, so it never caught that case. get already read a missing file as 0; watch now matches it and the down state is gone.

0 files changed, 0 insertions, 0 deletions