windyboy ebe81d8665 fix(processing): stamp outbox events from the injected clock ...

所有生产 MsgEvent 构造点显式传 createdAt：ScheduleProcessor.snapshotEvents、FdelProcessor 删除事件、eventsFor（新增 createdAt 参数，三个调用点传注入时钟）、HistorySweepJob.tombstone（传 run 的 now）。领域默认保留给测试便利，但生产写入不再依赖系统时钟。

验证：./gradlew test 145 tests / 0 fail / 0 skipped。

2026-09-12 20:52:24 +08:00

..

main

fix(processing): stamp outbox events from the injected clock

2026-09-12 20:52:24 +08:00

test

feat(jobs): expose job heartbeat and scan backlog

2026-09-12 20:52:24 +08:00