fix: auto-submit answer on timeout instead of blocking

- Timeout triggers forced submission of current answer (or empty)
- Prevents assessment from hanging when time expires
- autoSubmitted flag prevents duplicate submissions

web/components/views/AssessmentView.tsx

@@ -53,6 +53,7 @@ export const AssessmentView: React.FC<AssessmentViewProps> = ({
     const [selectedTemplate, setSelectedTemplate] = useState<string | null>(null);
     const [timeCheck, setTimeCheck] = useState<{ totalTimeRemaining: number; questionTimeRemaining: number; isTotalTimeout: boolean; isQuestionTimeout: boolean } | null>(null);
     const [selectedChoice, setSelectedChoice] = useState<string | null>(null);
+    const [autoSubmitted, setAutoSubmitted] = useState(false);
     const isTimedOut = timeCheck?.isTotalTimeout || timeCheck?.isQuestionTimeout;
 
     const messagesEndRef = useRef<HTMLDivElement>(null);
@@ -106,6 +107,10 @@ export const AssessmentView: React.FC<AssessmentViewProps> = ({
                 setTimeCheck(data);
                 if (data.isTotalTimeout || data.isQuestionTimeout) {
                     setError(t('timeLimitExceeded'));
+                    if (!autoSubmitted && !isLoading) {
+                        setAutoSubmitted(true);
+                        await handleSubmitAnswer(true);
+                    }
                 }
             } catch (err) {
                 console.error('Failed to check time:', err);
@@ -233,17 +238,19 @@ export const AssessmentView: React.FC<AssessmentViewProps> = ({
         }
     };
 
-    const handleSubmitAnswer = async () => {
+    const handleSubmitAnswer = async (forced = false) => {
         const currentQuestion = state?.questions?.[state.currentQuestionIndex || 0] as any;
         const isChoice = currentQuestion?.questionType === 'MULTIPLE_CHOICE' && currentQuestion?.options?.length > 0;
 
-        if (isChoice) {
-            if (!selectedChoice || isLoading || isTimedOut) return;
-        } else {
-            if (!inputValue.trim() || isLoading || isTimedOut) return;
+        if (!forced) {
+            if (isChoice) {
+                if (!selectedChoice || isLoading || isTimedOut) return;
+            } else {
+                if (!inputValue.trim() || isLoading || isTimedOut) return;
+            }
         }
 
-        const answer = isChoice ? selectedChoice! : inputValue.trim();
+        const answer = isChoice ? (selectedChoice || '') : inputValue.trim();
         setInputValue('');
         setSelectedChoice(null);
         setIsLoading(true);