Rebase jacob/maintained onto upstream 1.10.8 (12 commits behind, several direct collisions)

[jacobyoby]

What

$ git fetch upstream && git rev-list --count HEAD..upstream/master
12

Upstream master is at 35d3638de (1.10.8, 2026-09-07). FORK.md says the branch "tracks jhpyle/docassemble master". The behind commits collide with carried work:

• c1e3a98be merges this fork's issue-980 fix upstream. Fork commit 24b027530 becomes a duplicate and should be dropped. TODO.md item "Watch upstream PR Fix AttributeError when 'main page title url opens in other window' is boolean jhpyle/docassemble#983" is done.
• dda259d2a and 693e31fae add upstream's own skip link (tabindex="0"), role="main" tabindex="-1" on #damain, and an aria-live flash region. These overlap the fork's Accessibility for self-represented litigants: skip link, 404 landmark, print stylesheet #18 work in base.html, app.css and 404.html.
• 693e31fae rewrites bundle.sh to concatenate locally instead of wget from a running server, and removes the bootstrap-fileinput plugin. 2a586e690 replaces labelauty with CSS, which makes the fork's labelauty selector-escaper commit b49198de4, the bundle.sh labelauty entry, and the labelauty CodeQL exclusion moot.
• Upstream base.html now gates OG tags on 'image' in config['SOCIAL']['og'] and loads FontAwesome as js/all.min.js; the fork's SEO for public interview pages: description, canonical, OG, sitemap, robots #15 (ungated OG) and Page weight on public interview pages: 1.5 MB FontAwesome + 259 KB admin bundle loaded unconditionally #19 (CSS webfont build) change the same two lines.

Why it matters

Every week behind makes the rebase harder, and the harness controls now run against 1.10.8 behaviour (see the pinned-image issue). The forms container is meant to receive core via pip from this branch (#20), so it inherits whatever is here.

Done when

• git rebase upstream/master jacob/maintained completes; 24b027530 and the labelauty escaper are dropped with a note in the commit that upstream carries them.
• SEO for public interview pages: description, canonical, OG, sitemap, robots #15, Accessibility for self-represented litigants: skip link, 404 landmark, print stylesheet #18, Page weight on public interview pages: 1.5 MB FontAwesome + 259 KB admin bundle loaded unconditionally #19 are re-applied on top of upstream's versions with their controls still meaningful.
• e2e and CodeQL green; FORK.md and TODO.md updated in the same push.