laden auch am start des Sokrates Modus

math-tutor/frontend/src/pages/ChatPage.tsx

@@ -392,6 +392,7 @@ export default function ChatPage() {
     }
 
     let cancelled = false;
+    setIsSending(true);
     void (async () => {
       try {
         const response = await fetch(`/api/chat/bootstrap-socratic`, {
@@ -442,11 +443,16 @@ export default function ChatPage() {
           ]);
         }
         void error;
+      } finally {
+        if (!cancelled) {
+          setIsSending(false);
+        }
       }
     })();
 
     return () => {
       cancelled = true;
+      setIsSending(false);
     };
   }, [
     chatSessionId,
@@ -748,6 +754,7 @@ export default function ChatPage() {
     setMessages(initialMessages);
     setDraft("");
     resetDraftHistoryNavigation();
+    setIsSending(false);
     setDirectChildren([]);
     setTaskChildren([]);
     setIndirectChildren([]);