refac: pipe function support

backend/main.py

@@ -802,6 +802,12 @@ async def generate_chat_completions(form_data: dict, user=Depends(get_verified_u
 
     pipe = model.get("pipe")
     if pipe:
+        form_data["user"] = {
+            "id": user.id,
+            "email": user.email,
+            "name": user.name,
+            "role": user.role,
+        }
 
         def job():
             pipe_id = form_data["model"]