Images now load direct from images.04080616.xyz. Removes read-side
signing (signUrl/signCoverUrls + callers), unlocking browser and
edge caching since URLs are stable. Presigned upload kept for /api/upload.
PageReader retries failed loads via onError as a safety net.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Sign all image URLs server-side with 60s expiry presigned URLs
- Add /api/pages endpoint for batched page fetching (7 per batch)
- PageReader prefetches next batch when user scrolls to 3rd page
- Move chapter count badge outside overflow-hidden for 3D effect
- Fix missing URL signing on search and genre pages
- Extract signCoverUrls helper to reduce duplication
- Clamp API limit param to prevent abuse
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
