feat: at user

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/models_new/dynamic/dyn_mention/item.dart

@@ -0,0 +1,37 @@
+class MentionItem {
+  String? face;
+  int? fans;
+  String? name;
+  int? officialVerifyType;
+  String? uid;
+
+  MentionItem({
+    this.face,
+    this.fans,
+    this.name,
+    this.officialVerifyType,
+    this.uid,
+  });
+
+  factory MentionItem.fromJson(Map<String, dynamic> json) => MentionItem(
+        face: json['face'] as String?,
+        fans: json['fans'] as int?,
+        name: json['name'] as String?,
+        officialVerifyType: json['official_verify_type'] as int?,
+        uid: json['uid'] as String?,
+      );
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) {
+      return true;
+    }
+    if (other is MentionItem) {
+      return uid == other.uid;
+    }
+    return false;
+  }
+
+  @override
+  int get hashCode => uid.hashCode;
+}