### Change card expiry

`POST /api/v1/card-batches/{id}/expiry`

- Authentication: manager session (JWT) or API token
- Permission: `prm_cards_change_expiry` (Change card expiry)
- Risk: write
- Rate limit bucket: `t_mutate`

_This endpoint has no hand-written reference entry yet. The method, path, authentication, permission and rate limit above are generated from the running router and are accurate; there is no request or response example._