diff --git a/.task/feature-agent-e4-escalation-ledger.md b/.task/archive/feature-agent-e4-escalation-ledger.md
similarity index 99%
rename from .task/feature-agent-e4-escalation-ledger.md
rename to .task/archive/feature-agent-e4-escalation-ledger.md
index 58b39f4c..616c44c5 100644
--- a/.task/feature-agent-e4-escalation-ledger.md
+++ b/.task/archive/feature-agent-e4-escalation-ledger.md
@@ -1,6 +1,6 @@
 # feature/agent-e4-escalation-ledger 任务卡
 
-任务主记录：PR #315 https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/315；状态：进行中（待合入）；owner：weichen
+任务主记录：PR #315 https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/315；状态：已完成（回填）；owner：weichen
 
 ## 基线与授权
 
@@ -266,3 +266,9 @@
 }
 ```
 | 同步前验收 | f9b61eaa7ffa840ad25a10dddc918ecec0861c47 | 45c735cedf452277937330682224675d2f3ece57 | 2026-10-11T01:27:51Z |
+
+## 闭合记录（card-autoclose 回填）
+
+- 依据：merge 17004a106c3dcbaf9989ffeef56ace4db02946cf（PR #315）已包含于 origin/main，分支成果已落盘；本段为合入后回填。
+- 合并主题：Merge pull request 'E4 remainder: R4 escalation reminders and the structured source-id ledger (pin latest backend)' (#315) from feature/agent-e4-escalation-ledger into main
+- 归档：随闭合移入 .task/archive/；任务执行期的过程证据见原任务记录与 PR。
diff --git a/modules/documents b/modules/documents
index b37f45ff..9a46785e 160000
--- a/modules/documents
+++ b/modules/documents
@@ -1 +1 @@
-Subproject commit b37f45ff61f713ac000f891c726a8a0a7a8cc712
+Subproject commit 9a46785ee0f19540c79f83b4e4544572b5217ac2