diff --git a/HarborForge.Backend b/HarborForge.Backend
index 22a0097..6c0959f 160000
--- a/HarborForge.Backend
+++ b/HarborForge.Backend
@@ -1 +1 @@
-Subproject commit 22a0097a5d69f8d13a2ed9d83b4118cbf146223d
+Subproject commit 6c0959f5bb5919fad1ed28dee6a0a8aae3ec5c41
diff --git a/plans/TASKLIST.md b/plans/TASKLIST.md
index 55821da..ec14744 100644
--- a/plans/TASKLIST.md
+++ b/plans/TASKLIST.md
@@ -175,10 +175,10 @@
 
 ## E. HarborForge.Backend - Agent / Plugin Calendar 协作
 
-- [ ] BE-AGT-001:定义心跳查询待执行 slot 的服务层(backend only)
-  - [ ] 筛选当天 `NotStarted / Deferred`
-  - [ ] 仅返回 `scheduled_at` 已过的 slot
-  - [ ] 按优先级排序
+- [x] BE-AGT-001:定义心跳查询待执行 slot 的服务层(backend only)
+  - [x] 筛选当天 `NotStarted / Deferred`
+  - [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