# Backend Design: ECR-042 FeedSlot Write

| Field | Value |
|-------|-------|
| ID | BD-2026-042 |
| Status | Approved |
| Migration | NONE（复用 ops_feed_slots · perm 000051） |
| Level | L2 |

## Boundary

```text
POST/PUT /api/v1/admin/cms/feed-slots*
GET /api/v1/home/feed-slots
Permission: admin.cms.write (existing)
Audit: cms.feed_slot.create|update
```

## Out

Banner scope creep · soft-delete · UGC · payment · new RBAC subsystem