admin_enqueue_scripts file not working

admin.js

// import external dependencies
import 'jquery';

// Import everything from autoload
import './autoload/**/*'

// import local dependencies
import Router from './util/Router';
import adminCommon from './routes/adminCommon';

/** Populate Router instance with DOM routes */
const routes = new Router({
  // All pages
  adminCommon,
});

// Load Events
jQuery(document).ready(() => routes.loadEvents());

adminCommon.js

export default {
  init() {
    console.log('Admin Load');
    // JavaScript to be fired on all pages
  },
  finalize() {
    // JavaScript to be fired on all pages, after page specific JS is fired
  },
};

config.json

{
  "entry": {
    "main": [
      "./scripts/main.js",
      "./styles/main.scss"
    ],
    "admin": [
      "./scripts/admin.js",
      "./styles/admin.scss"
    ],
    "customizer": [
      "./scripts/customizer.js"
    ]
  },
  "publicPath": "/wp-content/themes/sage-local",
  "devUrl": "http://local.wordpress.test",
  "proxyUrl": "http://localhost:3000",
  "cacheBusting": "[name]_[hash:8]",
  "watch": [
    "app/**/*.php",
    "config/**/*.php",
    "resources/views/**/*.php"
  ]
}

setup.php

/**
 * Admin assets load
 */
add_action( 'admin_enqueue_scripts', function() {
    wp_enqueue_style('sage/admin.css', asset_path('styles/admin.css'), false, null);
    wp_enqueue_script('sage/admin.js', asset_path('scripts/admin.js'), ['jquery'], null, true);
});