Organization Graph Diagram
This example presents a small directed organization graph with three nodes (Alice, Bob, Carol) connected by two links. The graph uses a force-directed layout computed by `d3.forceSimulation` with `forceManyBody`, `forceLink`, and `forceCenter`. As the simulation ticks, circle elements in the SVG render the node positions, updating their `cx` and `cy` attributes continuously. The data is hardcoded in the script, and the output is drawn using D3 v6’s SVG selectors.