# Backend Design: ECR-026 ScheduledPublication

| ID | BD-2026-026 |
| Status | Approved |
| Coding | Loop authorized |
| Level | L2 |
| Migration | YES 000027 |

## Backend Change Boundary

```text
Domain: ScheduledPublication (read)
App: AdminHandler → admin.Service → AdminRepo
API: GET /admin/cms/publications; GET /admin/cms/publications/{id}
Permission: admin.cms.read
Migration: 000027
```

## Out of boundary

定时发布写操作 · UGC · 真支付 · Banner/FeedSlot 写

Rollback: down migration + remove routes/UI