MinerU already returns markdown with embedded HTML blocks, but the current\nreader runs the whole document back through html-to-markdown. That\nsecond conversion escapes valid headings and image syntax, so chunk\nprofiling sees plain text instead of markdown structure and relative\nimage references stop matching the storage pipeline.\n\nKeep MinerU output in its original markdown form and only apply narrow\ncompatibility normalization for the specific over-escaped patterns we\nactually need to recover. The converter now matches image refs by the\npaths that are really present in markdown or embedded HTML instead of\nassuming a single images/<name> form.\n\nExtend ImageResolver so relative HTML <img src=...> references share the\nsame storage rewrite path as markdown images, deduplicate repeated saves,\nand keep the frontend sanitizer compatible with MinerU's details/summary\nblocks. Add focused docparser tests that cover escaped markdown repair,\nvariant image path matching, and relative HTML image persistence.
MidnightSun
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