lzh 6649e1abb6 feat(iot): B10 iot_subsystem 表 + CRUD + Redis 设备计数聚合
- 新增 sql/iot/V2.0.2__iot_subsystem.sql(iot_project + iot_subsystem)
- 新增 server 模块 subsystem/ 下 DO + Mapper + Service + Controller + VO(7 端点)
- 新增 IotSubsystemDeviceCountRedisDAO(HINCRBY + rebuild + ApplicationReadyEvent 触发)
- api 模块 ErrorCodeConstants 新增子系统段(1-050-020-xxx)
- server 模块 RedisKeyConstants 新增 SUBSYSTEM_DEVCOUNT
- 测试:8 个单元用例全绿(mvn test IotSubsystemServiceImplTest)
- Known Pitfalls 落地:
  ⚠️ 评审 A4:UK(name, tenant_id, project_id, deleted) + 应用层 existsByNameAndProject 兜底 NULL
  ⚠️ 评审 A6:device-stats 走 Redis Hash,避免 GROUP BY
  ⚠️ 评审 A7:simple-list 权限码 iot:device:query,返回字段仅 id/name/code
  ⚠️ 删除校验:Redis 计数 > 0 抛 SUBSYSTEM_HAS_DEVICES
  ⚠️ Redis 重建:ApplicationReadyEvent + try/catch + log.warn 不阻塞启动

说明:iot_device 当前无 subsystem_id 列(rebuild 逻辑标 TODO B11),
待 B11 加列后启用 DB 重建查询。

Co-Authored-By: Claude Sonnet (B10 subagent) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 (1M context, orchestrator) <noreply@anthropic.com>
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Description
aiot后端(微服务版)
MIT 21 MiB
Languages
Java 80.2%
PLpgSQL 12.7%
TSQL 6.7%
Python 0.2%