feat(trigger): enhance trigger management with new error handling and response structure

- Added `TriggerInvokeError` and `TriggerIgnoreEventError` for better error categorization during trigger invocation.
- Updated `TriggerInvokeResponse` to include a `cancelled` field, indicating if a trigger was ignored.
- Enhanced `TriggerManager` to handle specific errors and return appropriate responses.
- Refactored `dispatch_triggered_workflows` to improve workflow execution logic and error handling.

These changes improve the robustness and clarity of the trigger management system.

api/services/workflow/entities.py

@@ -57,6 +57,7 @@ class PluginTriggerData(TriggerData):
     plugin_id: str
     endpoint_id: str
 
+
 class PluginTriggerDispatchData(BaseModel):
     """Plugin trigger dispatch data for Celery tasks"""
 
@@ -67,6 +68,7 @@ class PluginTriggerDispatchData(BaseModel):
     triggers: list[str]
     request_id: str
 
+
 class WorkflowTaskData(BaseModel):
     """Lightweight data structure for Celery workflow tasks"""