feat : Modèle avec sérialisation automatique

lib/models/post.dart

@@ -0,0 +1,33 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'post.g.dart';
+
+@JsonSerializable()
+class Post {
+  final String title;
+  final String content;
+  final String authorName;
+  final String authorImageUrl;
+  final DateTime publishDate;
+  final List<String>? imageUrls;
+  final int likesCount;
+  final int commentsCount;
+  final int sharesCount;
+  final double? aspectRatio; // Nouveau paramètre pour le ratio (largeur/hauteur)
+
+  Post({
+    required this.title,
+    required this.content,
+    required this.authorName,
+    required this.authorImageUrl,
+    required this.publishDate,
+    this.imageUrls,
+    this.likesCount = 0,
+    this.commentsCount = 0,
+    this.sharesCount = 0,
+    this.aspectRatio,
+  });
+
+  factory Post.fromJson(Map<String, dynamic> json) => _$PostFromJson(json);
+  Map<String, dynamic> toJson() => _$PostToJson(this);
+}