Add doc to script file

src/components/simulation-chart.tsx

@@ -1,3 +1,14 @@
+/**
+ * Simulation Chart Component
+ *
+ * Visualizes pharmacokinetic concentration profiles over time using Recharts.
+ * Displays ideal plan, deviated profile, and corrected profile with
+ * therapeutic range indicators. Supports multiple chart views and x-axis formats.
+ *
+ * @author Andreas Weyer
+ * @license MIT
+ */
+
 import React from 'react';
 import { LineChart, Line, XAxis, YAxis, CartesianGrid, Tooltip, Legend, ReferenceLine, ResponsiveContainer } from 'recharts';