fix

src/lib/testService.js

@@ -131,7 +131,14 @@ export async function forceGenerateTopicQuestions(topic, count = 5) {
   let candidates = null;
 
   for (let attempt = 0; attempt < 3; attempt++) {
-    const questions = await callQuizModel(topic, count);
+    let questions;
+    try {
+      questions = await callQuizModel(topic, count);
+    } catch (err) {
+      console.warn(`[quiz] LLM failed (attempt ${attempt + 1}):`, err.message);
+      lastQualityError = err.message;
+      continue;
+    }
 
     const qualityError = validateBatchQuality(questions);
     if (qualityError) {