feat(RobotState): 实现 RobotStateRepository，封装 RowVersion 乐观锁

wanshenmean

2 天以前 9fb0938c15bdc4577025e217622df17e8afeff08

 Code/.omc/state/subagent-tracking.json

@@ -772,5 +772,5 @@
  "total_spawned": 83,
  "total_completed": 83,
  "total_failed": 0,
  "last_updated": "2026-04-18T14:04:59.113Z"
  "last_updated": "2026-04-18T14:41:25.052Z"
}