Enhance Site Builder Functionality and UI Components

- Added a new method to fetch blueprints from the API, improving data retrieval for site structures.
- Updated the WizardPage component to include a progress modal for better user feedback during site structure generation.
- Refactored state management in builderStore to track structure generation tasks, enhancing the overall user experience.
- Replaced SyncIcon with RefreshCw in integration components for a more consistent iconography.
- Improved the site structure generation prompt in utils.py to provide clearer instructions for AI-driven site architecture.

frontend/src/components/integration/IntegrationStatus.tsx

@@ -3,7 +3,7 @@
  * Phase 6: Site Integration & Multi-Destination Publishing
  */
 import React from 'react';
-import { CheckCircleIcon, XCircleIcon, ClockIcon, SyncIcon } from 'lucide-react';
+import { CheckCircleIcon, XCircleIcon, ClockIcon, RefreshCw } from 'lucide-react';
 
 interface IntegrationStatusProps {
   syncEnabled: boolean;
@@ -25,7 +25,7 @@ export default function IntegrationStatus({
       case 'failed':
         return <XCircleIcon className="w-5 h-5 text-red-500" />;
       case 'syncing':
-        return <SyncIcon className="w-5 h-5 text-blue-500 animate-spin" />;
+        return <RefreshCw className="w-5 h-5 text-blue-500 animate-spin" />;
       default:
         return <ClockIcon className="w-5 h-5 text-gray-400" />;
     }

frontend/src/components/integration/SiteIntegrationsSection.tsx

@@ -3,7 +3,7 @@
  * Phase 6: Site Integration & Multi-Destination Publishing
  */
 import React, { useState, useEffect } from 'react';
-import { PlusIcon, TrashIcon, TestTubeIcon, SyncIcon } from 'lucide-react';
+import { PlusIcon, TrashIcon, TestTubeIcon, RefreshCw } from 'lucide-react';
 import Button from '../ui/button/Button';
 import { Modal } from '../ui/modal';
 import FormModal, { FormField } from '../common/FormModal';
@@ -303,7 +303,7 @@ export default function SiteIntegrationsSection({ siteId }: SiteIntegrationsSect
                     onClick={() => handleSync(integration)}
                     className="flex-1"
                   >
-                    <SyncIcon className="w-4 h-4 mr-1" />
+                    <RefreshCw className="w-4 h-4 mr-1" />
                     Sync
                   </Button>
                 )}