refactor(core): 重构会议接口并统一代码换行符

- 调整前端会议接口类型，新增 MeetingParticipant 定义
- 统一全项目文件换行符为 LF，清理 CRLF 格式
- 完善 .gitignore 规则与 H5 端基础类型定义

backend/src/main/java/com/imeeting/dto/biz/MeetingParticipantVO.java

@@ -0,0 +1,19 @@
+package com.imeeting.dto.biz;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Schema(description = "会议参会人信息")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class MeetingParticipantVO {
+
+  @Schema(description = "用户 ID")
+  private Long userId;
+
+  @Schema(description = "用户名称")
+  private String displayName;
+}

backend/src/main/java/com/imeeting/service/biz/impl/MeetingDomainSupport.java

@@ -1,13 +1,11 @@
 package com.imeeting.service.biz.impl;
 
-import cn.hutool.core.date.StopWatch;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.imeeting.common.MeetingConstants;
 import com.imeeting.common.SysParamKeys;
 import com.imeeting.entity.biz.AiTask;
 import com.imeeting.entity.biz.HotWordGroup;
 import com.imeeting.entity.biz.Meeting;
-import com.imeeting.entity.biz.MeetingTranscript;
 import com.imeeting.entity.biz.PromptTemplate;
 import com.imeeting.dto.biz.MeetingParticipantVO;
 import com.imeeting.event.MeetingCreatedEvent;
@@ -46,7 +44,6 @@ import java.time.LocalDateTime;
 import java.util.Arrays;
 import java.util.Comparator;
 import java.util.Collections;
-import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
@@ -476,7 +473,7 @@ public class MeetingDomainSupport {
                     .collect(Collectors.toList());
                   vo.setParticipantUsers(participantUsers);
                   String names = participantUsers.stream()
-                    .map(MeetingParticipantVO::getName)
+                    .map(MeetingParticipantVO::getDisplayName)
                     .filter(Objects::nonNull)
                             .collect(Collectors.joining(", "));
                     vo.setParticipants(names);

frontend/src/api/business/meeting.ts

@@ -8,8 +8,8 @@ export type SummaryDetailLevel = "DETAILED" | "STANDARD" | "BRIEF";
 export type MeetingSource = "WINDOWS" | "MACOS" | "KYLIN" | "UOS" | "HARMONYOS" | "WEB" | "CUSTOM_TERMINAL" | "ANDROID";
 
 export interface MeetingParticipant {
-  id: number;
-  name: string | null;
+  userId: number;
+  displayName: string | null;
 }
 
 export interface MeetingCreateConfig {

imeeting-h5/src/types/index.ts

@@ -26,8 +26,8 @@ export interface TokenResponse {
 }
 
 export interface MeetingParticipant {
-  id: number;
-  name: string | null;
+  userId: number;
+  displayName: string | null;
 }
 
 export interface MeetingVO {