yiekheng dea57e6b28 Drop R2 URL signing; serve images via custom domain
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>
2026-04-16 19:29:11 +08:00
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2026-03-25 22:20:37 +08:00