added ad provider

filcnaplo/lib/models/ad.dart

@@ -0,0 +1,29 @@
+class Ad {
+  String title;
+  String description;
+  String author;
+  Uri? logoUrl;
+  bool overridePremium;
+  DateTime date;
+
+  Ad({
+    required this.title,
+    required this.description,
+    required this.author,
+    required this.logoUrl,
+    this.overridePremium = false,
+    required this.date,
+  });
+
+  factory Ad.fromJson(Map json) {
+    return Ad(
+      title: json['title'] ?? 'Ad',
+      description: json['description'] ?? '',
+      author: json['author'] ?? 'reFilc',
+      logoUrl: json['logo_url'] != null ? Uri.parse(json['logo_url']) : null,
+      overridePremium: json['override_premium'] ?? false,
+      date:
+          json['date'] != null ? DateTime.parse(json['date']) : DateTime.now(),
+    );
+  }
+}