Update app.py

app.py

@@ -107,7 +107,7 @@ async def relay_txn(payload: dict):
 
 
 @app.post("/sign-message")
-async def sign_message(req: dict):
+async def sign_message(payload: dict):
     #message = bytes(payload["message"])
 
     # 1️⃣ verify quantum proof (same as your txn logic)