Docs: Update Gemini benchmark results

tests/8_json_validator/outputs_gemini/gemini-3-pro-preview TEMP_1.8.js

@@ -0,0 +1,10 @@
+export const validateJSON = async (d, s) => {
+  const { default: A } = await import('https://esm.sh/ajv@8.17.1');
+  const v = new A({ allErrors: true }).compile(s);
+  const valid = v(d);
+  return {
+    valid,
+    errors: valid ? [] : v.errors.map(e => `${e.instancePath} ${e.message}`.trim())
+  };
+};
+export default validateJSON;