- A long-press now cancels any pending swipe, so a hold-then-drag gesture
opens the action sheet without also turning the page (regression-tested).
- The next-chapter prefetch no longer retries on every page flip when the
endpoint fails (guard clears only when the next chapter changes), and it
clears a previous chapter's warmed images on navigation so stale hidden
<img>s don't linger.
- Tap zones set touch-action: pan-y so vertical panning stays native while
horizontal swipes reach our handler.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
When the reader reaches within two pages of the end of a chapter (tracked in
both modes off the furthest page reached), warm the next chapter's first few
page images via hidden imgs so flipping over renders instantly. Fetched once
per next-chapter id, guarded against mid-flight chapter changes, and retried
on failure. e2e asserts the prefetch is absent at the chapter start and
present (with the next chapter's URLs) near the end.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
