Update app.py

app.py

@@ -73,7 +73,7 @@ def generate_gantt():
         return pio.to_html(fig, full_html=True, include_plotlyjs='cdn')
         print("=== HTML Output Preview ===")
         print(html[:500])  # Nur ein Teil
-return html
+        return html
     except Exception as e:
         return f"<b>Fehler:</b> {e}"