fix: 删除会话改用el-popover实现，点击生效

web-vue/src/components/ChatDialog.vue

@@ -39,18 +39,17 @@
               <div class="sidebar-item-name">{{ chat.name }}</div>
               <div class="sidebar-item-msg">{{ chat.lastMsg || '暂无消息' }}</div>
             </div>
-            <el-tooltip content="删除会话" placement="top">
-              <el-dropdown trigger="click" @command="(cmd) => handleChatAction(cmd, chat)">
-                <span class="chat-action-btn">
+            <el-popover placement="left" :width="120" trigger="click">
+              <template #reference>
+                <span class="chat-action-btn" title="删除会话">
                   <el-icon><MoreFilled /></el-icon>
                 </span>
-                <template #dropdown>
-                  <el-dropdown-menu>
-                    <el-dropdown-item command="delete">删除会话</el-dropdown-item>
-                  </el-dropdown-menu>
               </template>
-              </el-dropdown>
-            </el-tooltip>
+              <div class="chat-action-list" @click="deleteRecentChat(chat)">
+                <el-icon><Delete /></el-icon>
+                删除会话
+              </div>
+            </el-popover>
           </div>
           <div v-if="recentChats.length === 0" class="sidebar-empty">暂无最近聊天</div>
         </div>
@@ -589,6 +588,17 @@ const handleChatAction = async (command, chat) => {
   }
 }
 
+const deleteRecentChat = async (chat) => {
+  try {
+    await deleteConversation(chat.id)
+  } catch (e) {
+    // 即使 API 失败也删本地
+  }
+  const idx = recentChats.value.findIndex(c => c.id === chat.id)
+  if (idx > -1) recentChats.value.splice(idx, 1)
+  if (currentContact.value?.id === chat.id) currentContact.value = null
+}
+
 const scrollToBottom = () => {
   nextTick(() => {
     if (messagesRef.value) {
@@ -698,6 +708,8 @@ onUnmounted(() => { if (unsubscribeWs) unsubscribeWs() })
 .sidebar-empty { padding: 20px; text-align: center; color: #909399; font-size: 12px; }
 .chat-action-btn { display: flex; align-items: center; cursor: pointer; padding: 4px; border-radius: 4px; color: #909399; transition: all 0.2s; }
 .chat-action-btn:hover { color: #409eff; background: #f0f9ff; }
+.chat-action-list { display: flex; align-items: center; gap: 8px; padding: 8px; cursor: pointer; border-radius: 4px; font-size: 13px; color: #f56c6c; transition: background 0.2s; }
+.chat-action-list:hover { background: #fef0f0; }
 
 .chat-main { flex: 1; display: flex; flex-direction: column; }
 .chat-header { display: flex; align-items: center; gap: 8px; padding: 12px; border-bottom: 1px solid #e4e7ed; }