Choosing which pressing you are looking at is an advanced,
metadata-repair task, and it sat directly above the tracklist with a
heading, a `<select>` and a paragraph explaining how our clustering
picks a "standard version" by weighing release count, status and date.
That is a sentence about our own heuristic in the most valuable space
on the page.
It is now "Other versions of this album (N)" below the tracklist: a
real `<button aria-expanded aria-controls>` inside the heading that
names the section, with the body rendered unconditionally and toggled
with `hidden`, because `aria-controls` has to name an element that is
in the DOM. Both rules are `config-section`'s rather than new ones.
It is demoted, not removed — matching the wrong release is a real
problem and this is how it gets fixed.
**Two more blocks shared that slot and neither was guarded.** The
selector at least had `distinctTracklistCount() <= 1`; the
`Versions / Loading releases…` spinner and the `Versions / <error>`
block did not, so both took the primary position on every album
regardless of whether there was ever going to be a choice. The spinner
said what `renderTracklist` was already saying about the same fetch, so
it is gone. The error was the one `catalog-scope-notice` shows at the
top of the page with a retry — every path that sets `errorReleases`
also sets `catalogFailed`, the only route to `unavailable`.
That error is what made this a rewrite rather than a move.
`renderTracklist` returned `nothing` on `errorReleases` and leaned on
the selector's own block to have said it, and a control inside a
collapsed disclosure cannot be a page's error surface. The failure
belongs to the list that is missing because of it, so that is where it
is drawn.
**What must not be lost is which version is on screen.** The default is
what the header already describes, so saying it on every album would be
this issue's own complaint one size smaller. `defaultVersionKey` is the
test: a line appears above the tracklist only once someone has chosen
another, naming it and offering the way back. The ★ and the words "in
your library" survive unchanged inside the panel, and the panel does
not close when the selection changes — a panel that shuts on use cannot
be used twice.
The `<select>` also loses an `aria-label` of "Select release version"
that outranked its own visible `<label>Version</label>`, which is a
label not in the name.
Verified against the running app as well as the suite: the collapsed
page, the open panel, a chosen version and 390px width all read
correctly, and the shell still measures 390 in a 390 viewport.
Closes#17
logan