Four user-reported fixes:
1. Albums infinite scroll: after a successful page load the
IntersectionObserver wouldn't refire when the sentinel stayed in
view (small thumbnails or large viewport), so subsequent pages
needed a manual refresh. Re-check sentinel position after each
load and add a scroll-event fallback for older mobile browsers.
2. 9-photo limit: add a "Больше 9 фото" toggle next to the photo
source buttons. When checked, the cap lifts to 99 (covers Telegram
auto-album splitting). VK still has its 9-attachment limit — if
posting to VK with more selected, prompt a confirm and truncate
the VK media payload to the first 9 client-side. Counters and
notifications all read the dynamic max.
3. Badge tab: gallery selections now auto-import into the badge list
on tab activation, so the photos appear right away with the first
one opened in the editor. The "Выбранные в галерее Flickr" button
reuses the same path for clarity.
4. Mobile UX: main navigation now scrolls horizontally on screens
≤720px instead of breaking into a tall stack — tabs stay on one
row, scroll-snap on. In the badge editor the canvas wrapper is
`position: sticky; top: 0` on screens ≤800px so the photo stays
visible while scrolling through the controls below it; canvas
also shrinks to ~62vw on phones.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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