init-textbook Purpose This skill drops a complete, sensible default scaffold into an empty (or nearly empty) project directory so the user can run and see a working intelligent textbook within minutes. The scaffold matches the consensus pattern across our recent textbooks (cybersecurity, networking, information-systems, ancient-history, statistics-course, token-efficiency, quantum-computing, world-history, intelligent-textbooks, book-mascots) so the project starts from the same baseline as everything else in the workspace. The scaffold is intentionally minimal-but-complete : it ships only the…