@Kushagra_Kesav below are the snipppet for all of them accordingly
import express from "express"; 
import userRoute from "./user . route. js";
import mediaRoute from "./media.route. js";
import personRoute from "./person.route. js";
import reviewRoute from "./review. route. js"; 
const router = express. Router( ); 
router .use("/user", userRoute);
router .use("/person", personRoute) ;
router .use("/reviews", reviewRoute);
2)user.route.js
Import express from "express" 
import [body) from"express-validator" 
import favoriteController from " .. /controllers/favorite. controller. js"
import userController from " .. /controllers/user. controller.js" 
import requestHandler from " .. /handlers/request. handler.js"
import userModel from " .. /models/user.model.js"
import tokenMiddleware from " .. /middlewares/token.middleware. js"
 const router = express.Router();
router .post ( 
    "/signup", 
    body ("username") 
        exists() .withMessage("username is required")
        .isLength([ min: 8 }) .withMessage("username minimum 8 characters")
        .custom(async value => { 
                 const user - await userModel.findone(( username: value });
                 if (user) return Promise.reject("username already used");
        });
    body("password")
        .exists/1.withMessage("password is required")
        .isLength({ min: 8 } ) .withMessage( "password minimum 8 characters"), 
    body ("confirmPassword")
        .exists().withMessage("confirmPassword is required")
        .isLength({ min: 8 }) .withMessage("confirmPassword minimum 8 characters")
       .custom((value, { req }) -> { 
              if (value ! == req.body .password) throw new Error("confirmPassword not match"); 
              return true;
       }),
 
    body("displayName")
        .exists() .withMessage("displayName is required")
        .isLength({ min: 8 }) .withMessage("displayName minimum 8 characters"), 
    requestHandler . validate,
    userController .signup
),
router .post (
     "/signin",
     body("username")
         .exists() .withMessage("username is required")
         .isLength({ min: 8 }) .withMessage("username minimum 8 characters"), 
     body ("password")
          .exists() .withMessage("password is required")
          .isLength({ min: 8 }) . withMessage("password minimum 8 characters"), 
      requestHandler .validate, 
      userController.signin
);
router.put(
     "/update-password",
     tokenMiddleware.auth,
     body("password")
          .exists() .withMessage("password is required")
          .isLength({ min: 8 }) . withMessage( "password minimum 8 characters"), 
     body( "newPassword")
          .exists() .withMessage("newPassword is required")
          .isLength({ min: 8 }) . withMessage("newPassword minimum 8 characters"),
     body("confirmNewPassword")
          .exists() .withMessage("confirmNewPassword is required")
          .isLength({ min: 8 }) . withMessage("confirmNewPassword minimum 8 characters")   
          .custom((value, { req }) => { 
                if (value ! == req. body . newPassword) throw new Error("confirmNewPassword not match"); 
                return true;
          }),
      requestHandler . validate, 
      userController .updatePassword
 ), 
router .get( 
      "/info",
      tokenMiddleware.auth, 
      userController .getInfo,
);
router .get (
      "/favorites",
      tokenMiddleware.auth,
      favoriteController.getFavoritesofUser
);
router . post ( 
      "/favorites", 
      tokenMiddleware.auth, 
      body("mediatype")
          .exists() .withMessage("mediatype is required")
          .custom(type => ["movie", "tv"].includes(type)) .withMessage("mediaType invalid"), 
      body("mediaId")
          .exists().withMessage("mediaId is required")
          .isLength(( min: 1 )) .withMessage("mediaId can not be empty"),
      body ( "mediaTitle")
         .exists().withMessage("mediaTitle is required"), 
      body ( "mediaPoster")
         .exists( ) .withMessage( "mediaPoster is required").
      body ( "mediaRate")
         .exists() .withMessage("mediaRate is required"), 
      favoriteController.addFavorite
);
router .delete(
      "/ favorites/ : favoriteId", 
      tokenMiddleware. auth, 
      favoriteController.removeFavorite
);
export default router;
There might be a little mistake maybe some wrong punctuation marks or the spacing even the brackets I used but from the photos I sent b4 should guide u, though I cross-checked b4 sending