feat: Add descendant chart functionality using D3.

public/js/filament/widgets/descendant-chart.js

@@ -0,0 +1,47 @@
+import * as d3 from 'd3';
+
+async function fetchDescendantData() {
+    const response = await fetch('/api/descendants');
+    if (!response.ok) {
+        throw new Error('Failed to fetch descendant data');
+    }
+    return response.json();
+}
+
+function processDescendantData(data) {
+    // Process data to fit D3.js structure
+    return data; // Placeholder for processed data
+}
+
+function renderDescendantChart(data) {
+    const container = d3.select('#descendant-chart-container');
+    const width = 960;
+    const height = 500;
+
+    const svg = container.append('svg')
+        .attr('width', width)
+        .attr('height', height)
+        .attr('class', 'shadow-lg');
+
+    // Example of creating a chart with D3.js and Tailwind CSS
+    svg.selectAll('circle')
+        .data(data)
+        .enter()
+        .append('circle')
+        .attr('cx', (d, i) => i * 100 + 50)
+        .attr('cy', height / 2)
+        .attr('r', 40)
+        .attr('class', 'fill-current text-blue-500');
+}
+
+async function initDescendantChart() {
+    try {
+        const rawData = await fetchDescendantData();
+        const data = processDescendantData(rawData);
+        renderDescendantChart(data);
+    } catch (error) {
+        console.error('Error initializing descendant chart:', error);
+    }
+}
+
+initDescendantChart();