* fix(images): read a loading collection as loading, never as 0 of 0 images (#391)
A reset published {loading, loaded:0, total:0} and the caption painted it
as "0 of 0 images" until the first page answered, so a fast reader (the
inspector concept spec on WebKit) read an empty result the server never
returned. The count line now says "Loading images…" while a first page is
in flight; the spec waits for the answered count, and a held-listing spec
pins the ordering.
* test(thumbnails): make the no-JPEG-XL-encoder fixture authoritative (#371)
{available:false} stood in only the cached detection, and every settings
read probes a cached None again, finding the host's real encoder. The
fixture now stands in for the detector itself and reset restores it; a
unit test proves the route against a detector that finds an encoder.
* test(system): wait for the restore job's own end before its toast (#361)
The reviewed-restore specs waited for the "Database restore finished"
toast with the 5 s expect, in effect a deadline on the disk-bound publish.
They now wait for the job's progress stream to close, assert the job
finished, and only then check the toast with the default timeout.
* test(images): wait for the search's answered count in the concept comparison (#391)
searchOf took the first changed caption as the search's count, the same
read-before-the-response race as the inspector's tag chip.
Vito
e4dc781c26