Initial snapshot upload

src/backend/submission_api.py

@@ -13,7 +13,7 @@ import huggingface_hub
 from fastapi import FastAPI, UploadFile, Form, File
 from fastapi.responses import JSONResponse
 from fastapi.staticfiles import StaticFiles
-from numpy import error_message
+
 from starlette.middleware.cors import CORSMiddleware
 
 from src.backend.evaluation import compute_tasks_ratings