add(接口)：添加授权、用户、好友关系服务接口

backend/IM_API/Models/FriendStatus.cs

@@ -0,0 +1,7 @@
+namespace IM_API.Models
+{
+    public enum FriendStatus:SByte
+    {
+
+    }
+}

backend/IM_API/Models/User.cs

@@ -41,7 +41,7 @@ public partial class User
     /// 1：在线
     /// </summary>
     [Column(TypeName = "tinyint(4)")]
-    public sbyte OlineStatus { get; set; }
+    public UserOnlineStatus OlineStatus { get; set; }
 
     /// <summary>
     /// 创建时间
@@ -60,7 +60,7 @@ public partial class User
     /// (0：未激活,1：正常,2：封禁)
     /// </summary>
     [Column(TypeName = "tinyint(4)")]
-    public sbyte Status { get; set; }
+    public UserStatus Status { get; set; }
 
     /// <summary>
     /// 软删除标识

backend/IM_API/Models/UserOlineStatus.cs

@@ -0,0 +1,18 @@
+namespace IM_API.Models
+{
+    /// <summary>
+    /// 用户在线状态
+    /// </summary>
+    public enum UserOnlineStatus : sbyte
+    {
+        /// <summary>
+        /// 不在线 (0)
+        /// </summary>
+        Offline = 0,
+
+        /// <summary>
+        /// 在线 (1)
+        /// </summary>
+        Online = 1
+    }
+}

backend/IM_API/Models/UserStatus.cs

@@ -0,0 +1,9 @@
+namespace IM_API.Models
+{
+    public enum UserStatus:SByte
+    {
+        Inactive = 0,
+        Normal = 1,
+        Banned = 2
+    }
+}