imported json in main

app/main.py

@@ -11,9 +11,10 @@ import subprocess
 import asyncio
 import threading
 import pathlib 
+import json 
 
 # ─── Third-Party ──────────────────────────────────────────────────────────────
-from fastapi import FastAPI, Depends, HTTPException, Request, Query, BackgroundTasks,json
+from fastapi import FastAPI, Depends, HTTPException, Request, Query, BackgroundTasks
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import JSONResponse
 from contextlib import asynccontextmanager