feat: 更新会议管理逻辑和界面

- 重构 `Meetings.tsx` 中的 `canManageRealtimeMeeting` 为 `canManageMeeting`，并更新相关调用
- 在会议卡片中添加创建人信息，并优化会议时间显示
- 增加权限检查，确保只有会议创建人或管理员可以编辑参会人

frontend/src/pages/business/Meetings.tsx

@@ -84,7 +84,7 @@ const shouldPollMeetingCard = (item: MeetingVO) =>
   || item.realtimeSessionStatus === 'ACTIVE'
   || isPausedRealtimeSessionStatus(item.realtimeSessionStatus);
 
-const canManageRealtimeMeeting = (meeting: MeetingVO) => {
+const canManageMeeting = (meeting: MeetingVO) => {
   try {
     const profileStr = sessionStorage.getItem('userProfile');
     if (!profileStr) {
@@ -97,6 +97,8 @@ const canManageRealtimeMeeting = (meeting: MeetingVO) => {
   }
 };
 
+const canManageRealtimeMeeting = (meeting: MeetingVO) => canManageMeeting(meeting);
+
 const applyRealtimeSessionStatus = (item: MeetingVO, sessionStatus?: RealtimeMeetingSessionStatus): MeetingVO => {
   if (!sessionStatus) {
     return item;
@@ -203,6 +205,7 @@ const MeetingCardItem: React.FC<{ item: MeetingVO, config: any, fetchData: () =>
       <Card hoverable onClick={() => onOpenMeeting(item)} className="meeting-card" style={{ borderRadius: 16, border: '1px solid var(--app-border-color)', background: 'var(--app-bg-card)', backdropFilter: 'blur(16px)', height: '220px', position: 'relative', boxShadow: 'var(--app-shadow)', transition: 'all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1)' }} styles={{ body: { padding: 0, display: 'flex', flexDirection: 'row', height: '100%' } }}>
         <div className={isProcessing ? 'status-bar-active' : ''} style={{ width: 6, height: '100%', backgroundColor: config.color, borderRadius: '16px 0 0 16px', flexShrink: 0 }}></div>
         <div style={{ flex: 1, padding: '20px 24px', position: 'relative', display: 'flex', flexDirection: 'column', minWidth: 0 }}>
+          {canManageMeeting(item) && (
           <div className="card-actions" style={{ position: 'absolute', top: 16, right: 16, zIndex: 10, background: 'var(--app-bg-card)', borderRadius: 8, padding: '4px' }} onClick={e => e.stopPropagation()}>
             <Space size={8}>
               <Tooltip title="编辑参会人"><div className="icon-btn edit"><EditOutlined onClick={() => onEditParticipants(item)} /></div></Tooltip>
@@ -217,6 +220,7 @@ const MeetingCardItem: React.FC<{ item: MeetingVO, config: any, fetchData: () =>
               </Popconfirm>
             </Space>
           </div>
+          )}
 
           <div style={{ flex: 1, display: 'flex', flexDirection: 'column', minWidth: 0 }}>
             <div style={{ marginBottom: 12, paddingRight: 80 }}>
@@ -226,7 +230,10 @@ const MeetingCardItem: React.FC<{ item: MeetingVO, config: any, fetchData: () =>
               <Text strong style={{ fontSize: 16, color: '#262626', lineHeight: '22px' }} ellipsis={{ tooltip: item.title }}>{item.title}</Text>
             </div>
             <Space direction="vertical" size={10} style={{ width: '100%', minWidth: 0 }}>
-              <div style={{ fontSize: '13px', color: '#8c8c8c', display: 'flex', alignItems: 'center' }}><CalendarOutlined style={{ marginRight: 10, flexShrink: 0 }} /><span style={{ overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>{dayjs(item.meetingTime).format('YYYY-MM-DD HH:mm')}</span></div>
+              <div style={{ fontSize: '13px', color: '#8c8c8c', display: 'flex', alignItems: 'center', gap: 16 }}>
+                <div style={{ display: 'flex', alignItems: 'center', minWidth: 0, flexShrink: 1 }}><CalendarOutlined style={{ marginRight: 6, flexShrink: 0 }} /><span style={{ overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>{dayjs(item.meetingTime).format('YYYY-MM-DD HH:mm')}</span></div>
+                <div style={{ display: 'flex', alignItems: 'center', minWidth: 0, flexShrink: 1 }}><UserOutlined style={{ marginRight: 6, flexShrink: 0 }} /><span style={{ overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>{item.creatorName || '未知'}</span></div>
+              </div>
               {isProcessing ? (
                 <div style={{ 
                   fontSize: '12px', 
@@ -455,6 +462,10 @@ const Meetings: React.FC = () => {
   };
 
   const openEditParticipants = (meeting: MeetingVO) => {
+    if (!canManageMeeting(meeting)) {
+      message.warning('只有会议创建人或管理员可以修改参会人');
+      return;
+    }
     setEditingMeeting(meeting);
     participantsEditForm.setFieldsValue({
       participantIds: meeting.participantIds || []
@@ -517,6 +528,13 @@ const Meetings: React.FC = () => {
       width: 180,
       render: (text: string) => dayjs(text).format('YYYY-MM-DD HH:mm')
     },
+    {
+      title: '创建人',
+      dataIndex: 'creatorName',
+      key: 'creatorName',
+      width: 120,
+      render: (text: string) => <Text type="secondary" ellipsis>{text || '未知'}</Text>
+    },
     {
       title: '参会人',
       dataIndex: 'participants',
@@ -529,7 +547,7 @@ const Meetings: React.FC = () => {
       title: '操作',
       key: 'action',
       width: 160,
-      render: (_: any, record: MeetingVO) => (
+      render: (_: any, record: MeetingVO) => canManageMeeting(record) ? (
         <Space size="middle">
           <Button type="link" size="small" onClick={(e) => { e.stopPropagation(); openEditParticipants(record); }}>编辑</Button>
           <Popconfirm
@@ -542,7 +560,7 @@ const Meetings: React.FC = () => {
             <Button type="link" danger size="small" onClick={(e) => e.stopPropagation()}>删除</Button>
           </Popconfirm>
         </Space>
-      )
+      ) : <Text type="secondary">-</Text>
     }
   ];