# Backend Design: ECR-017 AskOperations

| ID | BD-2026-017 |
| Status | Approved |
| Coding | Loop authorized |
| Level | L2 |
| Migration | YES 000019（权限 only） |

## Backend Change Boundary

```text
Domain: AskSessionView (read)
App: AdminHandler → admin.Service → AdminRepo
API: GET /api/v1/admin/ask/threads[+/:id]
Permission: admin.ask.read
Migration: 000019 grant to super_admin
UI: admin-h5 /ask
```

## Out of boundary

Message write/delete · SystemPrompt · Knowledge* · QualityFeedback write · UGC · Payment

Rollback: down migration revoke permission + remove routes/UI