Docs: Update benchmark results

tests/8_json_validator/outputs/x-ai_grok-4.js

@@ -0,0 +1,13 @@
+async function validateJSON(data, schema) {
+  const { default: Ajv } = await import('https://cdn.jsdelivr.net/npm/ajv@8/dist/ajv.min.js');
+  const ajv = new Ajv({ allErrors: true });
+  const validate = ajv.compile(schema);
+  const valid = validate(data);
+  return {
+    valid,
+    errors: valid ? [] : validate.errors.map(e => e.message)
+  };
+}
+export default validateJSON;
+// Generation time: 16.498s
+// Result: FAIL