Fix SSE for workflow show page (#17582)

- Add SSE to workflow show page. Listens at workflow versions
- Add a tool for creating trigger
- Ensure step id is not used in params
- Make AI adding step linked to the last node by default



https://github.com/user-attachments/assets/41ee1835-9716-450e-82e8-54e1b63bd1ef

packages/twenty-server/src/modules/workflow/workflow-builder/workflow-version-step/workflow-version-step.module.ts

@@ -45,6 +45,7 @@ import { WorkflowVersionStepWorkspaceService } from 'src/modules/workflow/workfl
   exports: [
     WorkflowVersionStepWorkspaceService,
     WorkflowVersionStepOperationsWorkspaceService,
+    WorkflowVersionStepHelpersWorkspaceService,
   ],
 })
 export class WorkflowVersionStepModule {}