* fix(release): DeleteOlder func for zero duration
resolves a bug in the `DeleteOlder` function where recent 24-hour data wasn't deleted when set to `delete everything`. We now correctly set the olderThanTimestamp to a future date when duration is zero, ensuring complete deletion of all records.
* fix(releases): delete older
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Co-authored-by: ze0s <ze0s@riseup.net>