first commit of v.02 application

client/src/components/GroundednessScore.jsx

@@ -0,0 +1,22 @@
+const LEVEL_LABELS = {
+  green: 'High score. Factually reliable response.',
+  gold: 'Average score. Reliable response, may exhibit minor drift from source.',
+  red: 'Low score. Unreliable response, factually inaccurate or hallucination.',
+};
+
+function GroundednessScore({ score }) {
+  if (score == null) return null;
+
+  const pct = Math.round(score * 100);
+  let level = 'red';
+  if (pct >= 75) level = 'green';
+  else if (pct >= 50) level = 'gold';
+
+  return (
+    <span className={`groundedness-score ${level}`}>
+      Grounded: {pct}% &ndash; {LEVEL_LABELS[level]}
+    </span>
+  );
+}
+
+export default GroundednessScore;