- Fix task error handling: return actual errors instead of nil to enable retry
- Add idempotency check: skip processing for already finished orders
- Extend temp order cache: increase from 15 minutes to 24 hours
- Configure retry policy: add MaxRetry(5) for all payment callbacks (Epay, Alipay, Stripe)
This fixes the critical issue where paid orders were being lost due to:
1. Failed tasks being marked as successful and deleted from queue
2. Temporary order info expiring before queue processing
3. No retry mechanism for transient failures
Changes:
- queue/logic/order/activateOrderLogic.go: Fix error returns and add idempotency
- internal/logic/public/portal/purchaseLogic.go: Extend cache to 24 hours
- internal/logic/notify/*NotifyLogic.go: Add retry configuration
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