首次全量在 batch 183 因 prisma.patientTransaction.findMany() 报
"Response from the Engine was empty"(Prisma 引擎 socket 瞬时抖动)整轮 abort。
上次只给 ClickHouse 查询加了重试,Prisma 侧未覆盖。

补 withDbRetry 指数退避(0.5/1.5/4.5s),包裹 cold-import 写主循环里
会 re-throw 而中断整轮的 DB 调用:createMany / findMany(回查 tx)/
buildPatientIndex / ensurePatientStub / patient+profile upsert。
只重试已知瞬时类错误(empty engine / 连接池 / ECONNRESET / server closed /
too many connections),P2002 等确定性错误立即抛交 caller。

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>