hot fixes for several UI and logic issues

web/api/configs.py

@@ -404,7 +404,10 @@ def update_config(filename: str):
 @api_auth_required
 def delete_config(filename: str):
     """
-    Delete config file.
+    Delete config file and cascade delete associated schedules.
+
+    When a config is deleted, all schedules using that config (both enabled
+    and disabled) are automatically deleted as well.
 
     Args:
         filename: Config filename
@@ -418,7 +421,6 @@ def delete_config(filename: str):
 
     Error responses:
         - 404: Config file not found
-        - 422: Config is used by schedules (cannot delete)
         - 500: Internal server error
     """
     try:
@@ -442,14 +444,6 @@ def delete_config(filename: str):
             'message': str(e)
         }), 404
 
-    except ValueError as e:
-        # Config is used by schedules
-        logger.warning(f"Cannot delete config {filename}: {str(e)}")
-        return jsonify({
-            'error': 'Config in use',
-            'message': str(e)
-        }), 422
-
     except Exception as e:
         logger.error(f"Unexpected error deleting config {filename}: {str(e)}", exc_info=True)
         return jsonify({