Docs: Update Gemini benchmark results

tests/8_json_validator/outputs_gemini/gemini-3-pro-preview TEMP_0.js

@@ -0,0 +1,10 @@
+const validateJSON = async (data, schema) => {
+  const { default: Ajv } = await import('https://esm.sh/ajv@8.12.0');
+  const validate = new Ajv({ allErrors: true }).compile(schema);
+  const valid = validate(data);
+  return {
+    valid,
+    errors: valid ? [] : validate.errors.map(e => `${e.instancePath} ${e.message}`.trim())
+  };
+};
+export default validateJSON;