ros-infrastructure/www.ros.org ? reverse-engineered prompt

Build me the ROS.org website as a static site that runs locally in Docker and can be edited easily. I want the home page and the rest of the public site to be generated from content and layout files, with live reload while I’m developing so I can see changes in the browser right away.

Please make sure I can run it with Docker Compose, open it at localhost on port 3000, and have the generated files go into an output folder. Also include the simple helper tasks for creating new blog posts and robot posts from a title, so I can quickly add new content without setting everything up by hand.

Keep it easy to maintain, and if anything depends on current docs or best practices, look them up online if needed.