SanKPan D3 T1
This example presents a minimal single-page web application that renders the static text "Test" in the browser. It serves as a foundational demonstration of setting up a D3 version 7 project, using the `d3` library loaded from a CDN and a custom `bundle.js` script. The code includes an indexed import statement from `d3`, but the main interaction is not yet defined, with only an initial test text displayed.