fix: synchronize frontend release cache version

CHANGELOG.md

@@ -8,6 +8,8 @@ Follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) · versioned wi
 ## [Unreleased]
 
 ### Changed
+- **Release cache-busting.** Updated the HTML app-version, stylesheet URL, and loader URL to match `VERSION`
+  (`1.24.21`) so deployed browsers fetch the current core assets.
 - **Lazy-navigation race protection.** A restored-section callback can no longer replace a newer user navigation
   request while section-specific modules are still loading, including under CPU throttling.
 - **Constrained workload coverage.** Added a 4× CPU-throttled 500-character browser workload regression that

VERSION

@@ -1 +1 @@
-1.24.20
+1.24.21

static/index.html

@@ -10,7 +10,7 @@
   <meta name="format-detection" content="telephone=no">
   <meta name="color-scheme" content="light dark">
   <meta name="theme-color" content="#2563EB">
-  <meta name="app-version" content="1.20.46">
+  <meta name="app-version" content="1.24.21">
   <link rel="manifest" href="/manifest.webmanifest">
   <link rel="icon" href="/static/icon.svg" type="image/svg+xml">
   <link rel="apple-touch-icon" href="/static/icon.svg">
@@ -27,7 +27,7 @@
 
   <!-- ── Core styles (local — no CDN dependency for first paint) ────────── -->
   <link rel="stylesheet" href="/static/vendor/mdi/materialdesignicons.min.css">
-  <link rel="stylesheet" href="/static/style.css?v=1.20.46">
+  <link rel="stylesheet" href="/static/style.css?v=1.24.21">
 
 
   <!-- ── Flag icons — non-blocking (loaded async, icons appear after JS) ── -->
@@ -392,7 +392,7 @@ window.toggleNavTree = function(treeId, chevronId) {
 </script>
 
 <!-- loader.js: fetches sections → loads JS modules → removes skeleton -->
-<script src="/static/loader.js?v=1.20.46"></script>
+<script src="/static/loader.js?v=1.24.21"></script>
 
 </body>
 </html>