fix: add CoreProvider to AdminLayout to fix QueryClient error on all admin pages

frontend/src/layouts/AdminLayout.astro

@@ -8,7 +8,7 @@ const currentPath = Astro.url.pathname;
 
 import SystemStatus from '@/components/admin/SystemStatus';
 import SystemStatusBar from '@/components/admin/SystemStatusBar';
-import { GlobalToaster } from '@/components/providers/CoreProviders';
+import { GlobalToaster, CoreProvider } from '@/components/providers/CoreProviders';
 
 
 const navGroups = [
@@ -225,7 +225,9 @@ function isActive(href: string) {
       </header>
       
       <main class="p-8 pb-24">
-        <slot />
+        <CoreProvider client:load>
+          <slot />
+        </CoreProvider>
       </main>
     </div>
 

frontend/src/pages/admin/collections/geo-intelligence.astro

@@ -1,6 +1,7 @@
 ---
 import Layout from '@/layouts/AdminLayout.astro';
 import GeoIntelligenceManager from '@/components/admin/intelligence/GeoIntelligenceManager';
+import { CoreProvider } from '@/components/providers/CoreProviders';
 ---
 <Layout title="Geo Intelligence | Spark Platform">
   <div class="p-8 space-y-6">
@@ -13,6 +14,8 @@ import GeoIntelligenceManager from '@/components/admin/intelligence/GeoIntellige
       </div>
     </div>
 
-    <GeoIntelligenceManager client:only="react" />
+    <CoreProvider client:load>
+      <GeoIntelligenceManager client:only="react" />
+    </CoreProvider>
   </div>
 </Layout>

frontend/src/pages/admin/content/avatars.astro

@@ -2,6 +2,7 @@
 ---
 import Layout from '@/layouts/AdminLayout.astro';
 import AvatarIntelligenceManager from '@/components/admin/intelligence/AvatarIntelligenceManager';
+import { CoreProvider } from '@/components/providers/CoreProviders';
 ---
 <Layout title="Avatar Intelligence">
   <div class="p-8">
@@ -9,6 +10,8 @@ import AvatarIntelligenceManager from '@/components/admin/intelligence/AvatarInt
       <h1 class="text-3xl font-bold text-white mb-2">🎭 Avatar Intelligence</h1>
       <p class="text-gray-400">Manage your base avatars, variants, and target personas. Each avatar represents a unique customer profile.</p>
     </div>
-    <AvatarIntelligenceManager client:load />
+    <CoreProvider client:load>
+      <AvatarIntelligenceManager client:load />
+    </CoreProvider>
   </div>
 </Layout>

frontend/src/pages/admin/sites/index.astro

@@ -1,6 +1,7 @@
 ---
 import Layout from '@/layouts/AdminLayout.astro';
 import SitesManager from '@/components/admin/sites/SitesManager';
+import { CoreProvider } from '@/components/providers/CoreProviders';
 ---
 
 <Layout title="Sites | Spark Launchpad">
@@ -14,6 +15,8 @@ import SitesManager from '@/components/admin/sites/SitesManager';
       </div>
     </div>
 
-    <SitesManager client:only="react" />
+    <CoreProvider client:load>
+      <SitesManager client:only="react" />
+    </CoreProvider>
   </div>
 </Layout>