Prepare Lunaris 1.1.2 experimental

lib/backend/models/artist_profile.dart

@@ -0,0 +1,23 @@
+class ArtistProfile {
+  const ArtistProfile({
+    required this.id,
+    required this.providerId,
+    required this.service,
+    required this.name,
+    required this.displayName,
+    required this.url,
+    this.avatarUrl,
+    this.updatedAt,
+    this.postCount,
+  });
+
+  final String id;
+  final String providerId;
+  final String service;
+  final String name;
+  final String displayName;
+  final String? avatarUrl;
+  final DateTime? updatedAt;
+  final int? postCount;
+  final String url;
+}