feat: implement content management dashboard and update proxy configurations to support AI-assisted learning material generation

src/pages/Leren.jsx

@@ -53,14 +53,14 @@ const Leren = () => {
     }
   }, [state.currentUser, state.weekNumber]);
 
-  const handleOpenTopic = (topic) => {
+  const handleOpenTopic = async (topic) => {
     setActiveTopic(topic);
     setView('detail');
     setSessionDone(false);
     setError(null);
     setFeedbackText('');
     setFeedbackPrompted(false);
-    const cached = getCachedContent(topic.id);
+    const cached = await getCachedContent(topic.id);
     if (cached) {
       setContent(cached);
     } else {