ljg-paper-flow

Paper workflow: read papers and generate cards in one go. Accepts one or more arXiv links, paper URLs, PDFs, or paper titles. For each paper, runs ljg-paper (produces an org-format analysis) and then ljg-card -l (produces a long reading-card PNG). Use when the user says "paper flow", "read papers and make cards", "paper cards", or supplies multiple papers and wants both analysis and cards.