feat(IM): 添加群成员时同步导入成员名称

addGroupMember在导入账号后逐个调用accountImport导入成员Nick名称

Co-Authored-By: Claude <noreply@anthropic.com>

health-im/health-im-api/src/main/java/com/renkang/im/dto/AddGroupMemberDTO.java

@@ -1,5 +1,6 @@
 package com.renkang.im.dto;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.Data;
 import lombok.NoArgsConstructor;
@@ -50,5 +51,11 @@ public class AddGroupMemberDTO {
         @NotNull(message = "群成员ID不能为空")
         @JsonProperty("Member_Account")
         private String memberAccount;
+
+        /**
+         * 群成员名称（可选，仅用于IM账号导入，不发送到腾讯IM）
+         */
+        @JsonIgnore
+        private String memberName;
     }
 }