feat: Python-Befehl auto-detect (python3/python/py) mit Warnung bei fehlendem Python

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

wwwroot/js/chat.js

@@ -131,6 +131,7 @@ function handleStreamEvent(eventType, data) {
       addAutoContextBubble(data.context);
       break;
 
+    case 'warning':
     case 'info':
       addWarningBubble(data.message, true);
       break;