[Add] upstage model forbidden feat

app.py

@@ -192,6 +192,10 @@ def add_new_eval(
     os.makedirs(OUT_DIR, exist_ok=True)
     out_path = f"{OUT_DIR}/{model_path}_eval_request_{private}_{precision}_{weight_type}.json"
 
+    # Check upstage model:
+    if user_name == "upstage":
+        return styled_warning("The model participating as a Host in Upstage does not conduct evaluations to ensure the transparency and fairness of the leaderboard. Please take this into consideration.")
+
     # Check if the model has been forbidden:
     if out_path.split("eval-queue/")[1] in DO_NOT_SUBMIT_MODELS:
         return styled_warning("Model authors have requested that their model be not submitted on the leaderboard.")