yueli 347f20497c feat: Redis幂等锁 + 关键端点防重复提交 ...

## decorators.py
- 新增 @prevent_double_submit(lock_timeout=5) 装饰器
  Redis key: idem:{user_id}:{path}:{MD5(body)}
  锁存在→409, 不存在→setex→执行业务→delete
  Redis不可用时fail-open降级放行

## purchase.py
- POST /purchase (创建): +@prevent_double_submit
- PATCH /purchase/<id>/approve (审批): +@prevent_double_submit

## outbound.py
- POST /outbound (出库): +@prevent_double_submit

## transactions.py
- POST /borrow/dispatch (借库扣减): +@prevent_double_submit

2026-07-16 13:08:37 +08:00

..

v1

feat: Redis幂等锁 + 关键端点防重复提交

2026-07-16 13:08:37 +08:00

__init__.py

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errors.py

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