diff --git a/.task/feature-u8-sqlite-instance-guard-r2.md b/.task/feature-u8-sqlite-instance-guard-r2.md
index e47d0f75..796c5f0d 100644
--- a/.task/feature-u8-sqlite-instance-guard-r2.md
+++ b/.task/feature-u8-sqlite-instance-guard-r2.md
@@ -24,7 +24,7 @@
 
 Dev 侧产物：`docs/recovery/u8-sqlite-instance-guard.md`、`docs/svc.md` 的 U8 段、`PROJECT.md` 与 `policy/architecture-baseline.json` 的必要登记、`modules/backend` gitlink 固定到 #210 合入后的 main SHA。
 
-Dev pin 最终指向 Backend `d7be3fde5cd84aace69e53fb3179e8ffe685afe8`（Backend 主干含 #211 + U8）。
+Dev pin 最终指向 Backend `276dd73824116fb55064eefef17f069ee1545ada`（Backend 主干含 #211 + U8 + development-manager 对齐）。
 
 非目标：不改 scripts/svc.sh；不在 live 实例故障注入；不写共享 PostgreSQL；账户 CLI 迁移互斥归 U7。
 
@@ -38,8 +38,13 @@ Dev pin 最终指向 Backend `d7be3fde5cd84aace69e53fb3179e8ffe685afe8`（Backen
 | dev-u8-sqlite-instance-guard-port-r2 | Dev docs/recovery、docs/svc.md、PROJECT.md、policy/architecture-baseline.json、modules/backend | AGENT-EXECUTION.md | implementation | cursor→agy→pi | 1 | cursor | completed | b829de223b7a516f6b3206ed5eb0a3ced43df3d5（parent 0968a86，apply 快进） | 无 | /tmp/cleanup-20261018/u8-dev-port-run.json |
 | dev-u8-backend-repin-d7be3fd | modules/backend | AGENT-EXECUTION.md | implementation | cursor→agy→pi | 0 | — | invalid-config（canonical checkout is dirty：apply 后子模块检出未同步；未启动任何尝试，无副作用） | — | 无 | /tmp/cleanup-20261018/u8-dev-repin-run.json |
 | dev-u8-backend-repin-d7be3fd | modules/backend | AGENT-EXECUTION.md | implementation | cursor→agy→pi | 1 | cursor | completed（子模块检出对齐到已记录 pin 后重新运行） | 6d9bd7c4306c22f694d0939e8b682e5f57933ea6（parent b829de2，apply 快进） | 无 | /tmp/cleanup-20261018/u8-dev-repin-run2.json |
+| backend-u8-dm-pin-align | Backend deps/development-manager | AGENT-EXECUTION.md | implementation | cursor→agy→pi | 1 | cursor | completed | 276dd73824116fb55064eefef17f069ee1545ada（parent d7be3fd，apply 快进，已推送 #210） | 无 | /tmp/cleanup-20261018/u8-backend-dm-bump-run.json |
+| dev-u8-backend-repin-276dd73 | modules/backend | AGENT-EXECUTION.md | implementation | cursor→agy→pi | 0 | — | invalid-config（canonical checkout is dirty：evidence 写卡未提交；未启动尝试，无副作用） | — | 无 | /tmp/cleanup-20261018/u8-dev-repin2-run.json |
+| dev-u8-backend-repin-276dd73 | modules/backend | AGENT-EXECUTION.md | implementation | cursor→agy→pi | 1 | cursor | completed | 0c645e4524c4709a37104ef00d3383d03cfda738（parent b1a0c29，apply 快进） | 无 | /tmp/cleanup-20261018/u8-dev-repin2-run2.json |
 
-扩围记录（用户 2026-10-18 授权）：Dev 主干原 pin `b00e192`（管理员密码管理 + 解释器路径修复）从未进入 Backend 主干，直接改 pin 到 U8 会回退已部署功能。经授权先以 Backend PR #211 将其合入 Backend 主干（merge `a670d2b`，PR HEAD `78ae397` CI 通过），再把 #210 与主干同步为 `d7be3fd`（CI 通过），Dev pin 指向 `d7be3fd`；#210 以 fast-forward 合入后主干即为该 SHA。
+组合指针对齐：Backend #208 引入的 `deps/development-manager` 固定在 `bd3a7de`，Dev 顶层为 `67784f4`（其后代，+22 提交），`make test-pins` 硬失败。最小修复为 #210 追加 gitlink 对齐提交 `276dd73`（Backend `agent-exec validate` 与 `dm governance check` 在新 pin 下通过），Dev pin 改指 `276dd73`，`test-pins` 通过。
+
+扩围记录（用户 2026-10-18 授权）：Dev 主干原 pin `b00e192`（管理员密码管理 + 解释器路径修复）从未进入 Backend 主干，直接改 pin 到 U8 会回退已部署功能。经授权先以 Backend PR #211 将其合入 Backend 主干（merge `a670d2b`，PR HEAD `78ae397` CI 通过），再把 #210 与主干同步为 `d7be3fd`（CI 通过）并追加对齐提交 `276dd73`；#210 以 fast-forward 合入后 Backend 主干即为 `276dd73`，与 Dev pin 一致。
 
 ## 关联方向与规划
 
@@ -206,3 +211,44 @@ Dev pin 最终指向 Backend `d7be3fde5cd84aace69e53fb3179e8ffe685afe8`（Backen
   "receipt_path": "/home/weichen/.cache/agent-system-dev/evidence/90b6c0864e7dac1838ea43070d823ae13b360c24d6532085c7c09a7c3cfa5603.json"
 }
 ```
+
+<!-- Local receipt: SELF. Digests detect corruption; they do not authenticate a reviewer or CI. -->
+```json
+{
+  "summary_schema": 1,
+  "source": "SELF",
+  "timestamp": "2026-10-18T09:45:38.779500+00:00",
+  "command": "make test-boundaries test-pins",
+  "exit_code": 0,
+  "cwd": "/home/weichen/projects/Agent-System-Dev-wt-feature-u8-sqlite-instance-guard-r2",
+  "before_head": "0c645e4524c4709a37104ef00d3383d03cfda738",
+  "after_head": "0c645e4524c4709a37104ef00d3383d03cfda738",
+  "branch": "feature/u8-sqlite-instance-guard-r2",
+  "target_branch": "main",
+  "target_head": "b5e23daed2f0ea46261979de1d62e4de0cfa88f9",
+  "root_target": "main",
+  "immediate_target": "main",
+  "before_tracked_diff_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+  "after_tracked_diff_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+  "output_tail": [
+    "ok modules/backend logging-system",
+    "ok deps/agent-native agent-intent",
+    "warn: deps/agent-native deps/development-guidelines is 26b562d2e34f, Dev is 2688fd2be6a5",
+    "ok deps/agent-native error-code-system",
+    "ok deps/agent-native logging-system",
+    "ok deps/agent-squad agent-intent",
+    "ok deps/agent-squad agent-native",
+    "warn: deps/agent-squad deps/development-guidelines is 26b562d2e34f, Dev is 2688fd2be6a5",
+    "ok deps/agent-squad error-code-system",
+    "ok deps/agent-squad logging-system",
+    "warn: deps/agent-intent deps/development-guidelines is 26b562d2e34f, Dev is 2688fd2be6a5",
+    "ok deps/agent-intent error-code-system",
+    "ok deps/agent-intent logging-system",
+    "pins ok",
+    "make[1]: Leaving directory '/home/weichen/projects/Agent-System-Dev-wt-feature-u8-sqlite-instance-guard-r2'"
+  ],
+  "output_sha256": "79539abc4b3e10f25c6a859b7b8d3e1f1c9b1da1945f117226803949b1c20397",
+  "receipt_sha256": "19650ed0a61f602519de399d0429fcb00029062249276b9ce43148b1f6db7968",
+  "receipt_path": "/home/weichen/.cache/agent-system-dev/evidence/19650ed0a61f602519de399d0429fcb00029062249276b9ce43148b1f6db7968.json"
+}
+```