diff --git a/.trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/check.jsonl b/.trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/check.jsonl
similarity index 100%
rename from .trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/check.jsonl
rename to .trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/check.jsonl
diff --git a/.trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/design.md b/.trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/design.md
similarity index 100%
rename from .trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/design.md
rename to .trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/design.md
diff --git a/.trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/implement.jsonl b/.trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/implement.jsonl
similarity index 100%
rename from .trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/implement.jsonl
rename to .trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/implement.jsonl
diff --git a/.trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/implement.md b/.trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/implement.md
similarity index 100%
rename from .trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/implement.md
rename to .trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/implement.md
diff --git a/.trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/prd.md b/.trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/prd.md
similarity index 100%
rename from .trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/prd.md
rename to .trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/prd.md
diff --git a/.trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/research/notification-source-and-runtime-evidence.md b/.trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/research/notification-source-and-runtime-evidence.md
similarity index 100%
rename from .trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/research/notification-source-and-runtime-evidence.md
rename to .trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/research/notification-source-and-runtime-evidence.md
diff --git a/.trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/task.json b/.trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/task.json
similarity index 94%
rename from .trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/task.json
rename to .trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/task.json
index 0d900c9d..b3a6c1a4 100644
--- a/.trellis/tasks/08-22-wecom-oa-backup-restore-notification-investigation/task.json
+++ b/.trellis/tasks/archive/2026-08/08-22-wecom-oa-backup-restore-notification-investigation/task.json
@@ -3,7 +3,7 @@
   "name": "wecom-oa-backup-restore-notification-investigation",
   "title": "企业微信 OA 备份恢复通知异常排查",
   "description": "只读定位企业微信 OA 运维告警与恢复通知来源，区分公网健康抖动、备份异常和真实恢复，并形成分级处置建议。",
-  "status": "in_progress",
+  "status": "completed",
   "dev_type": null,
   "scope": "operations",
   "package": null,
@@ -11,7 +11,7 @@
   "creator": "shunli",
   "assignee": "shunli",
   "createdAt": "2026-08-22",
-  "completedAt": null,
+  "completedAt": "2026-08-23",
   "branch": null,
   "base_branch": "main",
   "worktree_path": null,
@@ -23,4 +23,4 @@
   "relatedFiles": [],
   "notes": "只读排查确认群消息来自 ARM 公网健康探测的 dns_or_connect_failed 抖动，不是备份失败或真实恢复；生产近 14 天备份与 watchdog 均 14/14 成功且无失败记录，ARM 当前连续探测健康。未修改生产/ARM 配置或发送测试消息。",
   "meta": {}
-}
+}
\ No newline at end of file