refactor(trigger): clean up and optimize trigger-related code

- Remove unused classes and imports in encryption utilities
- Simplify method signatures for better readability
- Enhance code quality by adding newlines for clarity
- Update tests to reflect changes in import paths

Co-authored-by: Claude <noreply@anthropic.com>

api/services/trigger_service.py

@@ -20,4 +20,4 @@ class TriggerService:
         # TODO dispatch by the trigger controller
 
         # TODO using the dispatch result(events) to invoke the trigger events
-        raise NotImplementedError("Not implemented")
+        raise NotImplementedError("Not implemented")