Simple Line Chart
This simple line chart displays a time series of closing stock prices over a month, with date on the x-axis and price on the y-axis. The chart is built as a reusable D3 module using the ProD3 pattern, featuring margins, axes, a steelblue path, and axis labels. It loads CSV data and renders with SVG, using d3.scaleTime, d3.scaleLinear, d3.axisBottom, d3.axisLeft, and d3.line.