PythonCentralHub

Scaffold a new Python Central Hub tutorial .mdx page with correct frontmatter, DataCampExercise blocks, and site conventions. Use when the user wants to add a new tutorial/doc page under src/content/docs.

Verify UI/styling changes use Python Central Hub design tokens instead of hardcoded colors/fonts, and follow the Starlight theming rules. Use when adding or editing Astro components, CSS, or landing-page styles.