feat: Add npm dependencies and update vendor paths

- Add package.json dependencies: jquery, jquery-ui, moment, daterangepicker, wavesurfer.js, air-datepicker
- Create scripts/setup-vendor.js to copy npm packages to public/assets/vendor
- Update view templates to use vendor paths instead of old /js/ or CDN URLs
- Clean up legacy commented-out scripts in master layout

resources/views/radioschedule.blade.php

@@ -73,12 +73,12 @@ $margin = 2;
             border: solid {{$border}}px #03A6E0;
         }
     </style>
-    <link href="https://cdn.jsdelivr.net/npm/air-datepicker@3.5.0/air-datepicker.min.css" rel="stylesheet">
+    <link href="/assets/vendor/air-datepicker/air-datepicker.min.css" rel="stylesheet">
 @endpush
 
 @push('scripts')
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.30.1/moment.min.js"></script>
-    <script src="https://cdn.jsdelivr.net/npm/air-datepicker@3.5.0/air-datepicker.min.js"></script>
+    <script src="/assets/vendor/moment/moment.min.js"></script>
+    <script src="/assets/vendor/air-datepicker/air-datepicker.min.js"></script>
     <script type="text/javascript">
       var isMobile = window.screen.width <= 768;
       var airdatepicker = new AirDatepicker('#custom_date', {