http-api use member group card instead of sender name

mirai-api-http/src/main/kotlin/net/mamoe/mirai/api/http/dto/ContactDTO.kt

@@ -25,12 +25,12 @@ data class QQDTO(
 @Serializable
 data class MemberDTO(
     override val id: Long,
-    val memberName: String = "",
+    val memberName: String,
     val permission: MemberPermission,
     val group: GroupDTO
 ) : ContactDTO() {
-    constructor(member: Member, name: String = "") : this (
-        member.id, name, member.permission, GroupDTO(member.group)
+    constructor(member: Member) : this (
+        member.id, member.groupCard, member.permission, GroupDTO(member.group)
     )
 }
 

mirai-api-http/src/main/kotlin/net/mamoe/mirai/api/http/dto/MessageDTO.kt

@@ -64,7 +64,7 @@ sealed class MessageDTO : DTO
  */
 suspend fun MessagePacket<*, *>.toDTO(): MessagePacketDTO = when (this) {
     is FriendMessage -> FriendMessagePacketDTO(QQDTO(sender))
-    is GroupMessage -> GroupMessagePacketDTO(MemberDTO(sender, senderName))
+    is GroupMessage -> GroupMessagePacketDTO(MemberDTO(sender))
     else -> UnKnownMessagePacketDTO("UnKnown Message Packet")
 }.apply { messageChain = Array(message.size){ message[it].toDTO() }}