With the copied Chrome profile, `console fill play-app-record` stopped with
"no developer account named "<name>" (play.developerAccount) on the
chooser" although the name was there: the real "Choose developer account"
rows are not plain /developers/<id> text links (nested spans, icon-font
glyphs, role=button rows with the id in a data attribute, an avatar row
whose id only its click reveals).
- readChooser: every visible clickable row in the page content (header
and navigation left out); the name is the first visible line (icon
fonts, images and aria-hidden parts skipped); the id comes from
/developers/<id> in any attribute, else a data-*id attribute, else ''
(the row is then opened through the account-switch gate and the id is
read from the URL). "Create a new developer account" is not an account.
- matchAccount: exact spelling, then spaces and case aside (Turkish I/ı
folded), then a unique prefix. A case pair (KAYNAC / Kaynac) needs the
exact spelling; otherwise it stops and lists both with their ids.
- One developer account: picked (a different play.developerAccount is
said). Not found: every visible account is listed with its id.
- The resolved developerId is remembered as before.
Fixtures play-chooser-real.html (the owner's chooser shape, placeholder
names) and play-chooser-one.html; tests for exact, case pair, prefix,
single account and not found.
