generate-presentation

Make the shortest slide deck (a 16:9 PDF with speaker notes, at most 12 slides) that fully explains a GitHub pull request, in one white Microsoft look: one idea per slide, drawn as diagrams, with screenshots of the real app when the change is visible, every fact from the PR. USE FOR: "/generate-presentation 12345", "make slides about this PR", "a deck for my manager on PR <url>", "present this pull request". DO NOT USE FOR: editing PowerPoint files, videos (use generate-video), decks with no pull request behind them.