Preserve the contract, restructure the code

Implement process_orders(orders, notifier, audit) per this EXACT contract (given as the refactored behavior): - for each order: total <= 0 → append {'id': id, 'status': 'skipped'} to audit, continue - otherwise notifier.send(order['email'], 'order <id> confirmed'); success → append 'sent' - on notification failure → append 'failed' to audit, then RE-RAISE the exception (batch aborts) - return the audit list The hidden probe verifies three different notifier behaviors (happy, one failure mid-batch, all-skipped) — your implementation must match the contract exactly, in order.

Difficulty: advanced