up demo

backend.py

@@ -59,6 +59,8 @@ def create_app():
     app.add_route('/stats', stats)       # Handle stats requests
     app.add_route('/demo', demo)         # Handle demo page requests
     app.add_route('/demo/add', event_form)  # Handle event submission form
+    app.add_route('/demo/by-what', demo, suffix='by_what')  # Handle events by type page
+    app.add_route('/demo/map-by-what', demo, suffix='map_by_what')  # Handle map by event type page
     
     logger.success("Application initialized successfully")
     return app