refactor(api): refactor all

- Replaced direct imports of `TriggerProviderID` and `ToolProviderID` from `core.plugin.entities.plugin` with imports from `models.provider_ids` for better organization.
- Refactored workflow node classes to inherit from a unified `Node` class, improving consistency and maintainability.
- Removed unused code and comments to clean up the implementation, particularly in the `workflow_trigger.py` and `builtin_tools_manage_service.py` files.

These changes enhance the clarity and structure of the codebase, facilitating easier future modifications.

api/core/app/apps/workflow/app_runner.py

@@ -1,6 +1,6 @@
 import logging
 import time
-from typing import cast
+from typing import Optional, cast
 
 from core.app.apps.base_app_queue_manager import AppQueueManager
 from core.app.apps.workflow.app_config_manager import WorkflowAppConfig