security improvements

frontend/index.html

@@ -15,7 +15,7 @@
     
     <header class="header">
         <div class="header-content">
-            <div class="logo">
+            <a href="/" class="logo">
                 <div class="logo-icon">
                     <svg viewBox="0 0 40 40" fill="none" xmlns="http://www.w3.org/2000/svg">
                         <circle cx="20" cy="20" r="18" stroke="currentColor" stroke-width="2"/>
@@ -27,7 +27,7 @@
                     <span class="logo-title">SchoolCompare</span>
                     <span class="logo-subtitle">schoolcompare.co.uk</span>
                 </div>
-            </div>
+            </a>
             <nav class="nav">
                 <a href="/" class="nav-link active" data-view="dashboard">Dashboard</a>
                 <a href="/compare" class="nav-link" data-view="compare">Compare</a>