Content caster that transforms content into PNG visuals. It offers three formats: a long reading card (-l, default), an infographic (-i), and multi-card reading cards (1080x1440, -c). Output files are saved to the ~/Downloads/ directory. Use when the user requests content to be 'cast' or transformed into a visual format such as a card, infographic, or poster. Replaces ljg-cards and ljg-infograph.