Merge pull request 'main' (#32) from main into feature-nxdev

Reviewed-on: #32

backend/IM_API/Dtos/FriendDto.cs

@@ -1,7 +1,31 @@
 using IM_API.Models;
+using System.ComponentModel.DataAnnotations;
 
 namespace IM_API.Dtos
 {
-    public record FriendInfoDto(int Id, int UserId,int FriendId,FriendStatus StatusEnum,DateTime Created,string RemarkName,string? Avatar);
-    public record FriendRequestHandleDto(HandleFriendRequestAction action,string? remarkName);
+    public record FriendInfoDto
+    {
+        public int Id { get; init; }
+
+        public int UserId { get; init; }
+
+        public int FriendId { get; init; }
+
+        public FriendStatus StatusEnum { get; init; }
+
+        public DateTime Created { get; init; }
+
+        public string RemarkName { get; init; } = string.Empty;
+
+        public string? Avatar { get; init; }
+    }
+
+    public record FriendRequestHandleDto
+    {
+        [Required(ErrorMessage = "操作必填")]
+        public HandleFriendRequestAction Action { get; init; }
+
+        [StringLength(20, ErrorMessage = "备注名最大20个字符")]
+        public string? RemarkName { get; init; }
+    }
 }