Ivo Oskamp 5d83bfccab Performance: lazy covers, ETag caching, single DOM pass, SQL tag aggregation ... - IntersectionObserver defers both cover images and placeholder canvas drawing until cards enter viewport — eliminates 1000+ upfront ops - ETag on /library/list: browser gets 304 Not Modified when nothing changed - Single DOM pass in renderBooksGrid/renderDuplicatesView/renderSeriesDetail: card.querySelector replaces second iteration with 500+ getElementById calls - book_tags joined via json_agg in main query, removing separate SELECT + Python merge - loadLibrary: error handling prevents silent failures showing as infinite loading - Delete TODO-PERF-library-load.md (all four bottlenecks resolved) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>		2026-03-28 01:04:32 +01:00
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changelog-develop.md	Add duplicate detection, Convert warning, and performance TODO	2026-03-27 16:22:02 +01:00
TECHNICAL.md	Add duplicate detection, Convert warning, and performance TODO	2026-03-27 16:22:02 +01:00