Close 1 merged task card(s) and archive them

Why: branches merged into main had left their task cards open; backfill status and archive to prevent bookkeeping debt.
Evidence: feature-generative-ui-u5.md(PR#367) — merges verified via git log --merges against origin/main.
Impact: .task/*.md moved to .task/archive/ with status backfilled; no code or submodule change.
Refs: task.sh close (card-autoclose-r1)

.task/archive/feature-generative-ui-u5.md

@@ -1,6 +1,6 @@
 # feature/generative-ui-u5 任务卡
 
-任务主记录：modules/documents/docs/proposals/2026-10-11-generative-ui-u5-action-scope.md r2（已批准范围）+ 主记录 r2 U5 节；发布 PR：https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/367（任务卡与 PR 描述同源）；状态：发布评审中；owner：weichen
+任务主记录：PR #367 https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/367（merge 238480758f）；发布 PR：https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/367（任务卡与 PR 描述同源）；状态：已完成（回填）；owner：weichen
 
 ## 基线与授权
 
@@ -65,7 +65,7 @@
 | 时间(UTC) | 命令 | 被测HEAD | exit | 来源 | sha256(16) |
 |---|---|---|---|---|---|
 
-## 结果与验证（完成后填写）
+## 结果与验证
 
 - 结果：
 - 验证：<结论摘要 PASS/FAIL/SKIP/NOT_RUN 逐项；逐条证据由 make evidence 写入上方证据表>
@@ -238,3 +238,9 @@
   "receipt_sha256": "413897d2c804c33f742ab0e0c70039209302d71528918f129e33a29b49f0f849"
 }
 ```
+
+## 闭合记录（card-autoclose 回填）
+
+- 依据：merge 238480758f8e50faa847e4b12382c5301af1416c（PR #367）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 'Land Generative UI U5: form actions with idempotent ledger and confirm-card gating (documents #71, backend #155, ui #46/#47, frontend #56)' (#367) from feature/generative-ui-u5 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。