Cursor rules file generator

Generate a .cursorrules file for a project using {{stack}}. The project is: {{project_description}}.

The rules should cover: code style preferences, framework conventions, file/folder structure expectations, testing approach, what to avoid, and any project-specific patterns. Keep it under 50 lines, use second person ('you should', 'avoid'), and be specific enough to actually change Cursor's behavior — generic rules are useless.