Add cache-busting version params for frontend assets

privacy.html

@@ -6,7 +6,7 @@
   <title>xmrpay.link — Privacy & Terms</title>
   <meta name="description" content="Privacy policy and terms of use for xmrpay.link.">
   <link rel="icon" href="favicon.svg" type="image/svg+xml">
-  <link rel="stylesheet" href="style.css">
+  <link rel="stylesheet" href="style.css?v=20260326-1">
   <style>
     main.legal-main {
       max-width: 920px;
@@ -211,7 +211,7 @@
     <div class="lang-dropdown" id="langDropdown"></div>
   </div>
 
-  <script src="i18n.min.js" defer></script>
+  <script src="i18n.min.js?v=20260326-1" defer></script>
   <script>
     document.addEventListener('DOMContentLoaded', function () {
       var supported = ['en', 'de', 'fr', 'it', 'es', 'pt', 'ru'];