hailin 65c0bdd17c feat(payment): add transaction reliability and idempotency support ... - Add TransactionService for atomic database operations with optimistic lock retry - Implement pessimistic locking in payment callback handling to prevent race conditions - Add idempotency check via transactionId unique index to prevent duplicate processing - Add version columns to PaymentORM and OrderORM for optimistic locking - Add composite indexes for performance (order_status, transaction_id) - Optimize connection pool settings for both payment and conversation services - Update init-db.sql with version columns and new indexes Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>		2026-01-25 07:00:01 -08:00
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postgres/entities	feat(payment): add transaction reliability and idempotency support	2026-01-25 07:00:01 -08:00
transaction.service.ts	feat(payment): add transaction reliability and idempotency support	2026-01-25 07:00:01 -08:00