Early hybrid recorder limitations

The current hybrid recorder collects through the app and background bridges, so delivery can be less reliable when iOS suspends or throttles background work. Always or equivalent background location is still required; without it, locking the phone or leaving Tam can pause delivery and produce GPS gaps, delayed samples, or moving-time results that look worse than the elapsed timer and lock-screen Live Activity suggest. A dedicated native recorder is planned to own collection, journalling, foreground/background transitions, and reconciliation more directly, but until that rollout is complete these limitations should be treated as a known product condition rather than hidden from users.