Hardcoding the container kind in the batch-import consumption path or in the
refund path left the whole suite green — neither had a scenario that read a
clock-less container. Both now do: a back-dated import chunk against a tablet
pack stays IN_USE with no deadline, and a refund that brings units back to a
long-opened pack reads IN_USE rather than expired. The pen counterpart of the
import case is pinned alongside.
The fake client's `updateMany` learns the `id: { in: [...] }` form the batch
claim uses; it only understood a single id before.
The no-runway arm of the low-stock evaluation now has its written-off count
asserted too.