alz-repo-best-practices

Generate a print-ready PDF of the full ALZ best-practices guide from the repository markdown. Renders Mermaid diagrams as images, preserves tables and code blocks, and adds a cover page with the current git commit and date. Use whenever the user asks to 'generate the PDF', 'build the PDF', 'create the guide PDF', 'update the PDF', or mentions the reMarkable/e-reader version of the guide.