Paper reader. Takes an academic paper (URL, PDF, or file), runs the atom pipeline (split→squeeze→plain→feynman→博导审稿), and synthesizes a fluent analysis. Focus: what gap does it fill, and would a seasoned advisor take it seriously? Use when user shares an arxiv link, paper URL, PDF, or asks to analyze a research paper. Trigger words: '读论文', '分析论文', 'paper', or when user shares an academic paper.