feat: Add professional ratings to cards, implement scroll-to-top on home tab re-tap, and improve agent type fetching in the hero section.

lib/features/home/data/models/landing_page_content.dart

@@ -69,6 +69,7 @@ class ProfessionalItem {
   final String experience;
   final List<String> expertise;
   final String imageUrl;
+  final double rating;
 
   const ProfessionalItem({
     required this.name,
@@ -77,6 +78,7 @@ class ProfessionalItem {
     this.experience = '',
     this.expertise = const [],
     this.imageUrl = '',
+    this.rating = 5.0,
   });
 
   factory ProfessionalItem.fromJson(Map<String, dynamic> json) {
@@ -90,6 +92,9 @@ class ProfessionalItem {
               .toList() ??
           [],
       imageUrl: json['imageUrl'] as String? ?? '',
+      rating: (json['rating'] as num?)?.toDouble() ??
+          (json['averageRating'] as num?)?.toDouble() ??
+          5.0,
     );
   }
 }