fix: unblock page rendering when Telegram CDN is unavailable

- Google Fonts: non-render-blocking via media="print" onload trick
- telegram-web-app.js: load only inside Telegram environment
- Telegram SDK init: skip entirely outside Telegram
- Script load timeout: 8000ms → 2000ms for faster deep link fallback
- Email login form: expanded by default (80% of registrations)

index.html

@@ -18,8 +18,29 @@
     <link
       href="https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=Manrope:wght@400;500;600;700;800&family=Outfit:wght@400;500;600;700&display=swap"
       rel="stylesheet"
+      media="print"
+      onload="this.media='all'"
     />
-    <script src="https://telegram.org/js/telegram-web-app.js" async></script>
+    <noscript>
+      <link
+        href="https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=Manrope:wght@400;500;600;700;800&family=Outfit:wght@400;500;600;700&display=swap"
+        rel="stylesheet"
+      />
+    </noscript>
+    <script>
+      // Load Telegram Web App script only inside Telegram environment
+      (function() {
+        var isTelegram = window.TelegramWebviewProxy ||
+          location.hash.indexOf('tgWebApp') !== -1 ||
+          location.search.indexOf('tgWebApp') !== -1;
+        if (isTelegram) {
+          var s = document.createElement('script');
+          s.src = 'https://telegram.org/js/telegram-web-app.js';
+          s.async = true;
+          document.head.appendChild(s);
+        }
+      })();
+    </script>
     <style>
       body {
         background-color: #0a0f1a;