diff --git a/.doc/ops/CURRENT.md b/.doc/ops/CURRENT.md
index 06408996..6bcfb0f8 100644
--- a/.doc/ops/CURRENT.md
+++ b/.doc/ops/CURRENT.md
@@ -13,6 +13,8 @@
 
 | owner | task | branch | worktree | mutex | status |
 |-------|------|--------|----------|-------|--------|
+| Cursor | 2026-09-17-document-author-only-u5 | feature/document-author-only-plan | .worktrees/feature-document-author-only-plan | web + document-duty-policy | done |
+| Cursor | 2026-09-17-document-author-only-u4 | feature/document-author-only-plan | .worktrees/feature-document-author-only-plan | projectinstance + docgov + document-duty-policy | done |
 | Cursor | 2026-09-17-document-author-only-u3 | feature/document-author-only-plan | .worktrees/feature-document-author-only-plan | docgov + docduty + bizdev + document-duty-policy | done |
 | Cursor | 2026-09-17-document-author-only-u2 | feature/document-author-only-plan | .worktrees/feature-document-author-only-plan | projectinstance + document-duty-policy | done |
 | Cursor | 2026-09-17-document-author-only-u1 | feature/document-author-only-plan | .worktrees/feature-document-author-only-plan | sysadmin + document-duty-policy | done |
diff --git a/.doc/ops/short-term/2026-09-17-document-author-only-u4.md b/.doc/ops/short-term/2026-09-17-document-author-only-u4.md
new file mode 100644
index 00000000..76c08e55
--- /dev/null
+++ b/.doc/ops/short-term/2026-09-17-document-author-only-u4.md
@@ -0,0 +1,47 @@
+---
+title: "文档编制人兼任：U4 动作鉴权与审计"
+status: done
+created: 2026-09-17
+updated: 2026-09-17
+owner: Cursor
+branch: feature/document-author-only-plan
+worktree: ".worktrees/feature-document-author-only-plan"
+mutex: projectinstance + docgov + document-duty-policy
+---
+
+# 文档编制人兼任：U4 动作鉴权与审计
+
+## 目标
+
+ABAC 门禁识别 `duty_policy=author_only` 派生职责；审计 Details 携带 duty_policy。
+
+## 范围
+
+- `duty_action` / `stage_access` / `gate` 改用 `ResolveDocTaskDuty`
+- `state_machine` Transition* Details 补 `duty_policy`
+- author_only 动作矩阵与阶段可见性测试
+
+## 非目标
+
+- U5 UI / U6 浏览器闭环
+
+## 步骤
+
+1. [x] ABAC 三文件
+2. [x] 审计详情
+3. [x] 测试与提交
+
+## 验收标准
+
+- [x] author_only 规范存储（仅 Author ID）下 A 可 run/edit/submit/review/approve
+- [x] 非 A 拒绝；阶段门禁将 author_only 视为 approvalManaged
+- [x] 审计 Details 含 duty_policy
+
+## 相关链接
+
+- Plan: U4+U5 实施计划
+- 依赖：U1–U3
+
+## 证据 / 备注
+
+- `go test -short ./internal/projectinstance/ ./internal/docgov/ ./internal/app/ ./internal/server/` PASS
diff --git a/.doc/ops/short-term/2026-09-17-document-author-only-u5.md b/.doc/ops/short-term/2026-09-17-document-author-only-u5.md
new file mode 100644
index 00000000..a71bfaf0
--- /dev/null
+++ b/.doc/ops/short-term/2026-09-17-document-author-only-u5.md
@@ -0,0 +1,48 @@
+---
+title: "文档编制人兼任：U5 系统设置与逐文档 UI"
+status: done
+created: 2026-09-17
+updated: 2026-09-17
+owner: Cursor
+branch: feature/document-author-only-plan
+worktree: ".worktrees/feature-document-author-only-plan"
+mutex: web + document-duty-policy
+---
+
+# 文档编制人兼任：U5 系统设置与逐文档 UI
+
+## 目标
+
+前端识别 `duty_policy` / `author_only_policy`；项目设置可逐文档开启兼任。
+
+## 范围
+
+- `projectSettings.ts` 类型
+- `projectSettingsDuties.ts` resolveClientDocTaskDuty + 校验
+- `ProjectSettingsModal` 兼任勾选与预览
+- SettingsSection 不改（白名单通用渲染）
+
+## 非目标
+
+- U6 多职责动作栏 / 浏览器 E2E
+
+## 步骤
+
+1. [x] 类型与 lib
+2. [x] UI
+3. [x] 测试与提交
+
+## 验收标准
+
+- [x] author_only 客户端校验通过且不计三人门槛
+- [x] 总开关关闭时兼任勾选禁用并提示
+- [x] 预览展示兼任文档计数
+
+## 相关链接
+
+- Plan: U4+U5 实施计划
+
+## 证据 / 备注
+
+- `npx tsc --noEmit` PASS
+- `npm test` PASS（含 projectSettingsDuties author_only 用例）