feat: remove admin panel callout and dashboard statistics for cleaner layout

app/components/dashboard/AdminDashboard.vue

@@ -14,40 +14,10 @@ const adminActions = [
 
 <template>
   <div>
-    <div class="callout callout-highlight callout-danger mb-4">
-      <div class="callout-title">Pannello Admin</div>
-      <p class="mb-0">
-        Accesso di livello 1. Da qui puoi gestire configurazioni di sistema, segnalazioni, categorie e moderazione.
-      </p>
-    </div>
-
-    <div class="row g-3 mb-4" v-if="!pending && statsRes?.ok">
-      <div class="col-6 col-lg-3">
-        <div class="card card-bg dashboard-stat h-100">
-          <div class="card-body py-3">
-            <div class="stat-value">{{ statsRes.total_users || 0 }}</div>
-            <div class="small text-muted">Utenti registrati</div>
-          </div>
-        </div>
-      </div>
-
-      <div class="col-6 col-lg-3">
-        <div class="card card-bg dashboard-stat h-100">
-          <div class="card-body py-3">
-            <div class="stat-value">
-              {{ statsRes.open_reports ?? statsRes.reports_by_status?.find(s => s.status === 'OPEN')?.total ?? 0 }}
-            </div>
-            <div class="small text-muted">Segnalazioni aperte</div>
-          </div>
-        </div>
-      </div>
-    </div>
-
     <div class="card card-bg">
       <div class="card-body">
         <div class="d-flex justify-content-between align-items-center mb-3">
           <h2 class="h5 card-title mb-0">Gestione sistema</h2>
-          <span class="small text-muted">{{ adminActions.length }} sezioni</span>
         </div>
 
         <div class="row g-2">