v1.8.18: admin shows site name from branding, reset colors to green

static/admin.html

@@ -337,7 +337,7 @@ a[role=button]:active {
         <span class="msym text-primary text-lg">auto_awesome</span>
       </div>
       <div>
-        <h1 class="text-base font-bold text-primary leading-tight">AfakZaid RAG</h1>
+        <h1 class="text-base font-bold text-primary leading-tight" id="admin-brand-name">AfakZaid RAG</h1>
         <p class="text-[10px] text-on-surface-variant/60 uppercase tracking-widest">Admin Console</p>
       </div>
     </div>
@@ -394,7 +394,7 @@ a[role=button]:active {
     <button onclick="openSidebar()" class="text-on-surface-variant hover:text-primary">
       <span class="msym text-2xl">menu</span>
     </button>
-    <h1 class="text-primary font-bold">AfakZaid Admin</h1>
+    <h1 class="text-primary font-bold" id="admin-brand-mobile">AfakZaid Admin</h1>
   </header>
 
   <div class="p-4 lg:p-8 max-w-7xl mx-auto">
@@ -1613,6 +1613,11 @@ async function loadBranding() {
     document.getElementById('b-site-name').value  = d.site_name||'';
     document.getElementById('b-subtitle').value   = d.site_subtitle||'';
     document.getElementById('b-logo').value        = d.logo_url||'';
+    // Update admin header branding
+    const abn = document.getElementById('admin-brand-name');
+    const abm = document.getElementById('admin-brand-mobile');
+    if (abn && d.site_name) abn.textContent = d.site_name;
+    if (abm && d.site_name) abm.textContent = d.site_name + ' Admin';
     document.getElementById('b-bg-color').value    = d.bg_color||'#0c1324';
     document.getElementById('b-bg-color-hex').value = d.bg_color||'#0c1324';
     document.getElementById('b-bg-image').value     = d.bg_image||'';