修复了一些逻辑漏洞

src/views/chat/ChatView.vue

@@ -765,6 +765,68 @@ async function sendMessage(type: number, content: string, extra: any = {}, durat
   const roomId = getRoomId(chatStore.currentTarget)
   const isGroup = chatStore.currentTarget.is_group || chatStore.currentTarget.room_type === 'group'
   
+  // 发送消息前，确保会话存在（如果不存在则创建）
+  const existingConv = conversationStore.conversations.find(c => 
+    isGroup 
+      ? c.room_id === roomId 
+      : (c.target_id === (chatStore.currentTarget?.user_id || chatStore.currentTarget?.id))
+  )
+  
+  if (!existingConv) {
+    try {
+      // 调用接口创建会话
+      const conv: any = await conversationApi.getConversationByRoom(roomId)
+      // 检查会话是否已存在（可能在其他地方已添加）
+      const exists = conversationStore.conversations.find(c => 
+        c.room_id === conv.room_id || 
+        (c.target_id === conv.target_id && c.type === conv.type)
+      )
+      if (!exists) {
+        const isGroupConv = conv.type === 2
+        const targetGroup = conv.room || conv.target_group
+        
+        const formattedConv: Conversation = {
+          id: conv.id,
+          target_id: conv.target_id,
+          room_id: conv.room_id,
+          type: conv.type,
+          is_group: isGroupConv,
+          is_top: conv.is_top || false,
+          is_muted: conv.is_muted || false,
+          unread_count: conv.unread_count || 0,
+          last_message: conv.last_message || '',
+          last_message_time: conv.last_time,
+          name: isGroupConv 
+            ? (targetGroup?.room_name || targetGroup?.name || conv.name || conv.room_id || '群聊')
+            : (conv.target_user?.name || conv.name || '未知用户'),
+          display_name: isGroupConv 
+            ? (targetGroup?.room_name || targetGroup?.name || conv.name || conv.room_id || '群聊')
+            : (conv.target_user?.name || conv.name || '未知用户'),
+          avatar: isGroupConv 
+            ? (targetGroup?.room_avatar || targetGroup?.avatar || conv.avatar || '')
+            : (conv.target_user?.avatar || conv.avatar || ''),
+          user: conv.target_user,
+          room: conv.room,
+          target_group: targetGroup ? {
+            id: targetGroup.room_id || targetGroup.id,
+            room_id: targetGroup.room_id,
+            room_type: 'group',
+            name: targetGroup.room_name || targetGroup.name,
+            avatar: targetGroup.room_avatar || targetGroup.avatar,
+            owner_id: targetGroup.owner_id,
+            member_count: targetGroup.member_count,
+            created_at: targetGroup.created_at,
+          } : undefined
+        }
+        conversationStore.conversations.push(formattedConv)
+        conversationStore.sortConversations()
+      }
+    } catch (error) {
+      // 如果创建会话失败，仍然继续发送消息（后端会在发送消息时创建会话）
+      console.warn('Failed to create conversation before sending message:', error)
+    }
+  }
+  
   // 群聊时 receiver_user_id 应该为空或群ID，确保后端能正确识别为群聊
   const receiverUserId = isGroup ? '' : (chatStore.currentTarget.user_id || chatStore.currentTarget.id)
   
@@ -1106,13 +1168,40 @@ async function handleMarkRead(conv: Conversation) {
   toastStore.success('已标记为已读')
 }
 
-function handleDeleteConversation() {
+async function handleDeleteConversation() {
   if (!pendingDeleteConversation.value) return
   const conv = pendingDeleteConversation.value
-  conversationStore.conversations = conversationStore.conversations.filter(c => c.id !== conv.id)
-  toastStore.success('会话已移除')
-  showDeleteConversationConfirm.value = false
-  pendingDeleteConversation.value = null
+  
+  try {
+    // 调用后端API真正删除数据库中的会话记录
+    await conversationApi.deleteConversation(conv.target_id)
+    
+    // 从前端列表中移除会话
+    conversationStore.conversations = conversationStore.conversations.filter(c => c.id !== conv.id)
+    
+    // 如果当前正在查看被删除的会话，关闭聊天窗口
+    if (chatStore.currentTarget) {
+      const currentRoomId = getRoomId(chatStore.currentTarget)
+      const convRoomId = conv.room_id || conv.target_id
+      if (currentRoomId === convRoomId || 
+          (conv.type === 2 && currentRoomId === conv.room_id) ||
+          (!conv.is_group && (chatStore.currentTarget.user_id === conv.target_id || chatStore.currentTarget.id === conv.target_id))) {
+        chatStore.setCurrentTarget(null)
+        storage.setSelectedConversation('')
+        storage.setSelectedRoomId('')
+        if (isMobile.value) {
+          chatVisible.value = false
+        }
+      }
+    }
+    
+    toastStore.success('会话已删除')
+    showDeleteConversationConfirm.value = false
+    pendingDeleteConversation.value = null
+  } catch (e: any) {
+    console.error('Failed to delete conversation:', e)
+    toastStore.error(e?.response?.data?.message || e?.message || '删除失败')
+  }
 }
 
 // ----------------------------------------------