Merge branch 'feature-nxdev' of https://gitea.nxsir.cn/code/IM into feature-nxdev

backend/IM_API/Models/Conversation.cs

@@ -34,7 +34,9 @@ public partial class Conversation
 
     public string TargetName { get; set; } = null!;
 
-    public string TargetAvatar { get; set; } = null!;
+    public string? TargetAvatar { get; set; }
+
+    public int ChatType { get; set; }
 
     public virtual Message LastMessage { get; set; } = null!;
 

backend/IM_API/Models/ImDbContext.cs

@@ -115,6 +115,7 @@ public partial class ImDbContext : DbContext
             entity.Property(e => e.Id)
                 .HasColumnType("int(11)")
                 .HasColumnName("ID");
+            entity.Property(e => e.ChatType).HasColumnType("int(11)");
             entity.Property(e => e.LastMessageId)
                 .HasComment("最后一条消息ID	")
                 .HasColumnType("int(11)")