修复了一些逻辑漏洞

src/components/chat/MessageBubble.vue

@@ -53,7 +53,7 @@
 <script setup lang="ts">
 import { computed } from 'vue'
 import type { ChatMessage } from '@/types/api'
-import { formatTime } from '@/utils/format'
+import { formatMessageTime } from '@/utils/format'
 import { isSystemOrNotifyMessage, getMessageTypeIcon, getMessageSummary } from '@/utils/messageTypes'
 import { MessageType } from '@/types/message'
 import TextBubble from './bubble/Text.vue'
@@ -84,16 +84,8 @@ const bubbleShapeClass = computed(() => {
   }
 })
 
-// 使用 format.ts 中的逻辑，但可以根据需要微调为 HH:mm
+// 使用相对时间格式化
 const formattedTime = computed(() => {
-  const date = new Date(props.message.created_at)
-  // 如果是当天，只显示时间，否则显示日期+时间
-  const now = new Date()
-  const isToday = date.toDateString() === now.toDateString()
-
-  if (isToday) {
-    return date.toLocaleTimeString('zh-CN', { hour: '2-digit', minute: '2-digit' })
-  }
-  return formatTime(props.message.created_at)
+  return formatMessageTime(props.message.created_at)
 })
 </script>