fix(showcase): resolve scrolling lock, inject Apple Arabic typography globally, add sticky quick-jump floating subnav, and format continuous executive presentation

apps/web/index.html

@@ -1,10 +1,15 @@
 <!doctype html>
-<html lang="en">
+<html lang="ar" dir="rtl">
   <head>
     <meta charset="UTF-8" />
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>web</title>
+    <title>منظومة انطلاق للسيادة المكانية والذكاء التكتيكي</title>
+    
+    <!-- Apple SF Arabic & Modern Typography Stack -->
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=Noto+Sans+Arabic:wght@300;400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800;900&family=Tajawal:wght@400;500;700;800;900&display=swap" rel="stylesheet">
   </head>
   <body>
     <div id="root"></div>

apps/web/src/main.tsx

@@ -162,7 +162,7 @@ function Root() {
       )}
 
       {isExecutive && (
-        <div style={{ width: '100vw', height: '100vh', position: 'absolute', top: 0, left: 0 }}>
+        <div style={{ width: '100vw', height: '100vh', position: 'absolute', top: 0, left: 0, overflowY: 'auto', overflowX: 'hidden' }}>
           <ExecutiveShowcase />
         </div>
       )}