SIENTIAPDE-1325

Refactor initialization of Activities, Gates, and MongoDB classes for improved readability by using multi-line argument formatting. Update related tests to match the new initialization style.

scouter/worker/worker.py

@@ -134,10 +134,8 @@ async def main():
     try:
         await asyncio.gather(*handlers)
 
-    except BaseException as e:  # NOSONAR
-        logger.custom_error(
-            'An unhandled exception occurred: %s', metadata=metadata
-        )
+    except BaseException:  # NOSONAR
+        logger.custom_error('An unhandled exception occurred: %s', metadata=metadata)
     finally:
         if notification_handler:
             notification_handler.shutdown()