* feat(server): Enqueue jobs in bulk
The Job Repository now has a `queueAll` method, that enqueues messages
in bulk (using BullMQ's
[`addBulk`](https://docs.bullmq.io/guide/queues/adding-bulks)),
improving performance when many jobs must be enqueued within the same
operation.
Primary change is in `src/domain/job/job.service.ts`, and other services
have been refactored to use `queueAll` when useful.
As a simple local benchmark, triggering a full thumbnail generation
process over a library of ~1,200 assets and ~350 faces went from
**~600ms** to **~250ms**.
* fix: Review feedback