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# IoT Gateway
API/Worker 与 IoT Server 之间的无状态轻网关。外部业务请求必须先经过 Platform API 的 JWT、角色、对象归属和安全状态校验Worker 使用内部令牌经本服务下发命令。网关不保存命令、幂等或设备事实,只透传 `identity``idempotency_key` 和过期时间,并返回 IoT Server 的派发结果。
设备上行报文由 IoT Server 回调本服务,再转交 Platform API 持久化和审计;命令与幂等事实、最终状态查询统一由 API/PostgreSQL 提供。