fix jwt token decoding; correctly import google auth routes; adjust app/auth/ package

app/auth/deps.py

@@ -1,6 +1,6 @@
 from fastapi import Request, HTTPException
 import os
-from . import jwt
+from .jwt import decode_token
 
 JWT_SECRET = os.getenv("JWT_SECRET")
 JWT_ALGORITHM = os.getenv("JWT_ALGORITHM", "HS256")
@@ -13,7 +13,7 @@ def get_current_user(request: Request):
         raise HTTPException(status_code=401, detail="Not authenticated")
 
     try:
-        payload = jwt.decode(token, JWT_SECRET, algorithms=[JWT_ALGORITHM])
-        return payload["user_id"]
+        payload = decode_token(token, JWT_SECRET, algorithms=[JWT_ALGORITHM])
+        return payload["sub"]
     except:
         raise HTTPException(status_code=401, detail="Invalid token")