update review api.

lib/features/reviews/domain/entities/review_statistics.dart

@@ -0,0 +1,49 @@
+/// Domain Entity: Review Statistics
+///
+/// Aggregate statistics for product reviews.
+library;
+
+/// Review statistics entity
+///
+/// Contains aggregate data about reviews:
+/// - Total number of feedbacks
+/// - Average rating (0-5 scale)
+class ReviewStatistics {
+  const ReviewStatistics({
+    required this.totalFeedback,
+    required this.averageRating,
+  });
+
+  /// Total number of reviews/feedbacks
+  final int totalFeedback;
+
+  /// Average rating (0-5 scale)
+  /// Note: This is already on 0-5 scale from API, no conversion needed
+  final double averageRating;
+
+  /// Check if there are any reviews
+  bool get hasReviews => totalFeedback > 0;
+
+  /// Get star rating rounded to nearest 0.5
+  /// Used for displaying star icons
+  double get displayRating {
+    return (averageRating * 2).round() / 2;
+  }
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) return true;
+
+    return other is ReviewStatistics &&
+        other.totalFeedback == totalFeedback &&
+        other.averageRating == averageRating;
+  }
+
+  @override
+  int get hashCode => Object.hash(totalFeedback, averageRating);
+
+  @override
+  String toString() {
+    return 'ReviewStatistics(totalFeedback: $totalFeedback, averageRating: $averageRating)';
+  }
+}