feat(trigger): enhance trigger subscription management and processing

- Refactor trigger provider classes to improve naming consistency and clarity
- Introduce new methods for managing trigger subscriptions, including validation and dispatching
- Update API endpoints to reflect changes in subscription handling
- Implement logging and request management for endpoint interactions
- Enhance data models to support subscription attributes and lifecycle management

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

api/fields/workflow_trigger_fields.py

@@ -23,4 +23,4 @@ webhook_trigger_fields = {
     "node_id": fields.String,
     "triggered_by": fields.String,
     "created_at": fields.DateTime(dt_format="iso8601"),
-}
+}