feat(reader): prefetch the next chapter's first pages near the end

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>
This commit is contained in:
MechaCat02
2026-07-04 21:28:06 +02:00
parent 3f1a5e9c41
commit f1349100d7
6 changed files with 112 additions and 6 deletions

2
backend/Cargo.lock generated
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@@ -1558,7 +1558,7 @@ checksum = "c41e0c4fef86961ac6d6f8a82609f55f31b05e4fce149ac5710e439df7619ba4"
[[package]]
name = "mangalord"
version = "0.101.0"
version = "0.102.0"
dependencies = [
"anyhow",
"argon2",

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@@ -1,6 +1,6 @@
[package]
name = "mangalord"
version = "0.101.0"
version = "0.102.0"
edition = "2021"
default-run = "mangalord"