feat(reader): page thumbnails tab + reliable PDF contents
Investigation: the contents drawer read book.toc, which makePDF builds from pdf.getOutline() — verified against the real library PDF (Head First SQL) through the exact vendored pdf.js build AND the exact range transport the browser uses: 18 chapter entries come back. So the source is right; manga-scan PDFs and CBZs simply have no embedded outline, which made Contents look broken exactly where users expect page-based navigation. - TOC now populates eagerly right after the book opens (toggle-time lazy population removed), so an existing outline can never silently miss due to timing; the drawer keeps the honest empty-state text for books without outlines. - New 'Pages' tab in the contents drawer for fixed-layout books: a Kavita-style thumbnail grid (3-up, current page highlighted and scrolled into view, click to jump — recorded on the back-to- location stack). Thumbnails render client-side: PDFs via the in-memory pdf.js document (small viewport render, Alpine.raw unwrap); comics via the page's image blob drawn down to a 110px canvas, then unloading the full-size blob so thumbnailling doesn't hoard page images. Lazy via IntersectionObserver scoped to the drawer's scroll container (200px margin), canvases cached at module level so revisits are instant; failures warn in console and allow retry. The backend /readers/thumbnails endpoint turned out to be an empty stub, so nothing server-side was worth wiring.
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@@ -1029,6 +1029,51 @@
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background-color: color-mix(in srgb, currentColor 6%, transparent);
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}
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/* Page thumbnails grid (contents drawer, fixed-layout) */
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.reader-thumb-grid {
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display: grid;
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grid-template-columns: repeat(3, 1fr);
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gap: 0.5rem;
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}
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.reader-thumb {
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position: relative;
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border-radius: 0.375rem;
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overflow: hidden;
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border: 2px solid transparent;
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padding: 0;
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background-color: color-mix(in srgb, currentColor 6%, transparent);
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}
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.reader-thumb:hover {
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border-color: color-mix(in srgb, currentColor 30%, transparent);
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}
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.reader-thumb.active {
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border-color: #3b82f6;
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}
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.reader-thumb-img {
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aspect-ratio: 3 / 4;
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display: flex;
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align-items: center;
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justify-content: center;
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overflow: hidden;
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}
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.reader-thumb-img canvas,
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.reader-thumb-img img {
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max-width: 100%;
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max-height: 100%;
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object-fit: contain;
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}
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.reader-thumb-num {
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position: absolute;
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bottom: 0.2rem;
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right: 0.35rem;
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font-size: 0.65rem;
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line-height: 1;
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padding: 0.15rem 0.3rem;
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border-radius: 0.25rem;
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background-color: rgba(0, 0, 0, 0.55);
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color: #ffffff;
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}
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/* In-book search */
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.reader-search-bar {
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display: flex;
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@@ -1,2 +1,2 @@
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