All 11 download endpoints off payload:dict. Highlights:
- admin_set_quota: AdminSetQuotaIn — the `int(payload["max_bytes"])` 500 on a
non-number is now a 422; each field set only when provided (is not None).
- profiles/enqueue/edit: CreateProfileIn / UpdateProfileIn / EnqueueDownloadIn /
EnqueueEditIn; spec/edit_spec typed as dict (non-object → 422). _resolve_spec now
takes (profile_id, spec) instead of the raw payload.
- meta/share/links: UpdateDownloadMetaIn / ShareDownloadIn / CreateLinkIn /
UpdateLinkIn; _link_expiry takes an int|None instead of digging the payload.
PATCH endpoints read model_fields_set so an explicit null still clears a field.
Gate: ruff clean, pytest 164 green.
peter
f4bf1bc18f