nx_reader_research_fetch.nx

nx_reader_research_fetch.nx -- the Nishi RESEARCHER's sovereign web-fetch for the S-CLASS READER / LIBRARY arc. Operator 2026-06-21: "keep going getting it s class exceed on desktop and mobile -- mobile menu hides parts, table-of-contents chapters shown wrong, and we have NO artwork/assets ingested to s-class-exceed Kindle. use the nishi researcher and catalogue the gaps to get there." Mirrors the proven nx_brand_research_fetch / nx_fin_research_fetch pattern: own TLS-1.3 (nx_https_fetch_follow) + Mozilla CA store, saves each cited source to knowledge/fetched/reader_*.raw so the research COMPOUNDS to the Library and can be grepped to CITE the census yardsticks. The 2026-06-14 best-in-class research already covered sync/aids/comics/audiobook; THIS pass deliberately targets the dimensions that were UNcovered and that the operator just named: (1) EPUB structure + the navigation document / table-of-contents (the "TOC wrong" root), (2) book COVER ART + embedded illustrations + image formats (the "no artwork ingested" root), (3) RESPONSIVE web design + mobile/touch UX + desktop layout (the "mobile menu hides parts" + "desktop and mobile" root), plus the e-reader exemplars (Kindle/Apple Books/Kobo/Calibre) and typography/accessibility/interop yardsticks. 100% sovereign (own TLS, nx_cc->nxasm, no curl/wget/gcc). Idempotent have-skip = re-run fills gaps (also the per-fetch mmap-leak workaround -- each pass is a fresh process so memory resets). EXTENDED 2026-07-02 (operator: "use the nishi researcher to really get where we are vs benchmarks vs july 2026 research on our library and how to beat kindle devices and apps and other s-class systems"): section Z adds the KINDLE-DEVICE depth (Scribe/KF8/E-Ink), the manga/server cohort (KOReader/Mihon/Kavita/Komga/foliate/Mokuro), the ZOOM bar we just shipped against (DeepZoom/OpenSeadragon/IIIF/ComiXology guided view), the LIVE doc-AI research bar (olmOCR/MinerU/docling/Magi manga understanding), and modern compression (JXL/AVIF/DjVu) -> knowledge/fetched/rdr_z*.raw, grounding nx_reader_exceed_census. COVERAGE: 24 + 20 = 44 authoritative reader/format/UX/research topics. expect_exit: 0 license_tier: ORIGINAL