feat: Add WordPress button, settings navigation, and placeholder pages

admin-spa/src/routes/Settings/index.tsx

@@ -4,8 +4,29 @@ import { __ } from '@/lib/i18n';
 export default function SettingsIndex() {
   return (
     <div>
-      <h1 className="text-xl font-semibold mb-3">{__('Settings')}</h1>
-      <p className="opacity-70">{__('Coming soon — SPA settings.')}</p>
+      <h1 className="text-2xl font-semibold mb-6">{__('WooNooW Settings')}</h1>
+      <p className="text-muted-foreground mb-6">
+        {__('Configure WooNooW plugin settings and preferences.')}
+      </p>
+      
+      <div className="space-y-6">
+        <div className="bg-card border rounded-lg p-6">
+          <h2 className="text-lg font-semibold mb-3">{__('Plugin Configuration')}</h2>
+          <p className="text-sm text-muted-foreground mb-4">
+            {__('Settings interface coming soon.')}
+          </p>
+        </div>
+        
+        <div className="bg-card border rounded-lg p-6">
+          <h2 className="text-lg font-semibold mb-3">{__('Quick Links')}</h2>
+          <div className="space-y-2">
+            <p className="text-sm">
+              <span className="font-medium">{__('WooCommerce Settings:')}</span>{' '}
+              {__('Use the navigation menu to access General, Payments, Shipping, and other WooCommerce settings.')}
+            </p>
+          </div>
+        </div>
+      </div>
     </div>
   );
 }