Share account-scoped recovery claims with login uploader instances and serialize same-title recovery windows. Reserve direct and recovered file codes consistently, reject reused identities, and cover concurrent singleton recovery plus distinct-code and parallel-success cases.
Serialize recovery windows per hoster account and normalized filename, reserve remote codes across the batch, and keep cancellation responsive while waiting. Reject semantic and malformed file-list baselines instead of treating them as empty accounts, with focused regression coverage and release allowlist updates.
Sucukdeluxe