docs: update README with notifications, assign, retry, new CLI commands

README.md

@@ -2,7 +2,7 @@
 
 Agent/人类协同任务管理平台 - FastAPI 后端
 
-## API Endpoints (30)
+## API Endpoints (38)
 
 ### Auth
 - `POST /auth/token` - 登录获取 JWT token
@@ -63,6 +63,18 @@ Agent/人类协同任务管理平台 - FastAPI 后端
 - `GET /milestones/{id}/issues` - 里程碑下的 issue 列表
 - `GET /milestones/{id}/progress` - 里程碑完成进度
 
+### Notifications
+- `GET /notifications` - 列表（支持 user_id, unread_only 过滤）
+- `GET /notifications/count` - 未读通知计数
+- `POST /notifications/{id}/read` - 标记已读
+- `POST /notifications/read-all` - 全部标记已读
+
+### Issue Assignment
+- `POST /issues/{id}/assign` - 指派 issue（自动发送通知）
+
+### Webhook Retry
+- `POST /webhooks/{id}/retry/{log_id}` - 重试失败的 webhook 投递
+
 ### Export
 - `GET /export/issues` - 导出 issues CSV
 - `GET /issues/overdue` - 逾期未完成的 issue
@@ -83,6 +95,10 @@ python3 cli.py transition <issue_id> <new_status>
 python3 cli.py stats [-p project_id]
 python3 cli.py projects
 python3 cli.py users
+python3 cli.py milestones [-p project_id]
+python3 cli.py milestone-progress <milestone_id>
+python3 cli.py notifications -u <user_id> [--unread]
+python3 cli.py overdue [-p project_id]
 python3 cli.py health
 python3 cli.py version
 ```