diff --git a/HarborForge.Backend b/HarborForge.Backend
index 6c0959f..70f343f 160000
--- a/HarborForge.Backend
+++ b/HarborForge.Backend
@@ -1 +1 @@
-Subproject commit 6c0959f5bb5919fad1ed28dee6a0a8aae3ec5c41
+Subproject commit 70f343fbac92feaac499a2b6406ca4c04d5c8cba
diff --git a/plans/TASKLIST.md b/plans/TASKLIST.md
index ec14744..1d5c160 100644
--- a/plans/TASKLIST.md
+++ b/plans/TASKLIST.md
@@ -180,11 +180,11 @@
   - [x] 仅返回 `scheduled_at` 已过的 slot
   - [x] 按优先级排序
 
-- [ ] BE-AGT-002:实现 Agent 状态流转服务(backend only)
-  - [ ] Idle -> Busy / OnCall
-  - [ ] Busy / OnCall -> Idle
-  - [ ] 超时无心跳 -> Offline
-  - [ ] API 配额错误 -> Exhausted
+- [x] BE-AGT-002:实现 Agent 状态流转服务(backend only)
+  - [x] Idle -> Busy / OnCall
+  - [x] Busy / OnCall -> Idle
+  - [x] 超时无心跳 -> Offline
+  - [x] API 配额错误 -> Exhausted
 
 - [ ] BE-AGT-003:实现多 slot 竞争处理(backend only)
   - [ ] 选最高 priority 执行