Fix nested backtick syntax bug killing entire JS runtime — build referral chart dataset as JS object not template literal

index.html

@@ -1765,27 +1765,47 @@ ${numPeople > 0 ? `
   const chartLabels = chartData.map(d => `M${d.m}`);
   const chartValues = chartData.map(d => d.cum);
 
-  if (chart1) { chart1.destroy(); chart1 = null; }
+  // Build referral dataset separately to avoid nested backtick issues
-  if (chart2) { chart2.destroy(); chart2 = null; }
+  let referralDataset = null;
-  if (chart3) { chart3.destroy(); chart3 = null; }
+  if (numPeople > 0) {
-
+    const label = numPeople > 1 ? `Total (${numPeople} people) Cumulative Referral Earnings` : 'Your Cumulative Referral Earnings';
-  const ctx1 = document.getElementById('profitChart').getContext('2d');
+    const data = numPeople > 1 ? chartValues.map(v => v * numPeople) : chartValues;
-  chart1 = new Chart(ctx1, {
+    referralDataset = {
-    type: 'line',
+      label: label,
-    data: {
+      data: data,
-      labels: chartLabels,
-      datasets: [
-      ${numPeople > 0 ? `{
-              label: `${numPeople > 1 ? `Total (${numPeople} people)` : 'Your'} Cumulative Referral Earnings`,
-              data: numPeople > 1 ? chartValues.map(v => v * numPeople) : chartValues,
       borderColor: '#6c5ce7',
       backgroundColor: 'rgba(108,92,231,0.1)',
       fill: true,
       tension: 0.3,
       pointRadius: 3,
       pointHoverRadius: 5,
-            },` : ''}
+    };
+  }
+
+  if (chart1) { chart1.destroy(); chart1 = null; }
+  if (chart2) { chart2.destroy(); chart2 = null; }
+  if (chart3) { chart3.destroy(); chart3 = null; }
+
+  const datasets = [
     {
+      label: 'Their Cumulative Profit',
+      data: chartProfitData.map(d => d.cum),
+      borderColor: '#00d2ff',
+      backgroundColor: 'rgba(0,210,255,0.1)',
+      fill: true,
+      tension: 0.3,
+      pointRadius: 3,
+      pointHoverRadius: 5,
+    },
+    referralDataset,
+  ].filter(Boolean);
+
+  const ctx1 = document.getElementById('profitChart').getContext('2d');
+  chart1 = new Chart(ctx1, {
+    type: 'line',
+    data: {
+      labels: chartLabels,
+      datasets: datasets,
     },
     options: {
       responsive: true,