feat: 将终端标签页移至左侧边栏

- 在 MainLayout 侧边栏添加终端标签区域
- 标签纵向排列在连接列表下方
- 点击标签自动切换到终端工作区并激活
- 简化 TerminalWorkspaceView 移除顶部标签栏和返回按钮
- 不用返回就能切换连接和打开新终端

frontend/src/layouts/MainLayout.vue

@@ -1,21 +1,37 @@
 <script setup lang="ts">
-import { ref } from 'vue'
-import { RouterLink, useRoute } from 'vue-router'
+import { ref, computed } from 'vue'
+import { RouterLink, useRoute, useRouter } from 'vue-router'
 import { useAuthStore } from '../stores/auth'
 import { useConnectionsStore } from '../stores/connections'
-import { ArrowLeftRight, Server, LogOut, Menu, X } from 'lucide-vue-next'
+import { useTerminalTabsStore } from '../stores/terminalTabs'
+import { ArrowLeftRight, Server, LogOut, Menu, X, Terminal } from 'lucide-vue-next'
 
 const route = useRoute()
+const router = useRouter()
 const authStore = useAuthStore()
 const connectionsStore = useConnectionsStore()
+const tabsStore = useTerminalTabsStore()
 const sidebarOpen = ref(false)
 
+const terminalTabs = computed(() => tabsStore.tabs)
+
 connectionsStore.fetchConnections().catch(() => {})
 
 function closeSidebar() {
   sidebarOpen.value = false
 }
-</script>
+
+function handleTabClick(tabId: string) {
+  tabsStore.activate(tabId)
+  router.push('/terminal')
+  closeSidebar()
+}
+
+function handleTabClose(tabId: string, event: Event) {
+  event.stopPropagation()
+  tabsStore.close(tabId)
+}
+</script>
 
 <template>
   <div class="flex h-screen bg-slate-900">
@@ -38,27 +54,53 @@ function closeSidebar() {
         <h1 class="text-lg font-semibold text-slate-100">SSH 传输控制台</h1>
         <p class="text-sm text-slate-400">{{ authStore.displayName || authStore.username }}</p>
       </div>
-      <nav class="flex-1 p-4 space-y-1 pt-16 lg:pt-4">
-        <RouterLink
-          to="/transfers"
-          @click="closeSidebar"
-          class="flex items-center gap-3 px-3 py-2.5 rounded-lg text-slate-300 hover:bg-slate-700 hover:text-slate-100 transition-colors duration-200 cursor-pointer min-h-[44px] focus:outline-none focus:ring-2 focus:ring-cyan-500 focus:ring-inset"
-          :class="{ 'bg-slate-700 text-cyan-400': route.path === '/transfers' }"
-          aria-label="传输"
-        >
-          <ArrowLeftRight class="w-5 h-5 flex-shrink-0" aria-hidden="true" />
-          <span>传输</span>
-        </RouterLink>
-        <RouterLink
-          to="/connections"
-          @click="closeSidebar"
-          class="flex items-center gap-3 px-3 py-2.5 rounded-lg text-slate-300 hover:bg-slate-700 hover:text-slate-100 transition-colors duration-200 cursor-pointer min-h-[44px] focus:outline-none focus:ring-2 focus:ring-cyan-500 focus:ring-inset"
-          :class="{ 'bg-slate-700 text-cyan-400': route.path === '/connections' }"
-          aria-label="连接列表"
-        >
-          <Server class="w-5 h-5 flex-shrink-0" aria-hidden="true" />
-          <span>连接列表</span>
-        </RouterLink>
+      <nav class="flex-1 p-4 space-y-1 pt-16 lg:pt-4 overflow-y-auto">
+        <RouterLink
+          to="/transfers"
+          @click="closeSidebar"
+          class="flex items-center gap-3 px-3 py-2.5 rounded-lg text-slate-300 hover:bg-slate-700 hover:text-slate-100 transition-colors duration-200 cursor-pointer min-h-[44px] focus:outline-none focus:ring-2 focus:ring-cyan-500 focus:ring-inset"
+          :class="{ 'bg-slate-700 text-cyan-400': route.path === '/transfers' }"
+          aria-label="传输"
+        >
+          <ArrowLeftRight class="w-5 h-5 flex-shrink-0" aria-hidden="true" />
+          <span>传输</span>
+        </RouterLink>
+        <RouterLink
+          to="/connections"
+          @click="closeSidebar"
+          class="flex items-center gap-3 px-3 py-2.5 rounded-lg text-slate-300 hover:bg-slate-700 hover:text-slate-100 transition-colors duration-200 cursor-pointer min-h-[44px] focus:outline-none focus:ring-2 focus:ring-cyan-500 focus:ring-inset"
+          :class="{ 'bg-slate-700 text-cyan-400': route.path === '/connections' }"
+          aria-label="连接列表"
+        >
+          <Server class="w-5 h-5 flex-shrink-0" aria-hidden="true" />
+          <span>连接列表</span>
+        </RouterLink>
+
+        <!-- 终端标签区域 -->
+        <div v-if="terminalTabs.length > 0" class="pt-4 mt-4 border-t border-slate-700">
+          <div class="flex items-center gap-2 px-3 py-2 text-xs font-semibold text-slate-500 uppercase tracking-wider">
+            <Terminal class="w-4 h-4" aria-hidden="true" />
+            <span>终端</span>
+          </div>
+          <div class="space-y-1 mt-2">
+            <button
+              v-for="tab in terminalTabs"
+              :key="tab.id"
+              @click="handleTabClick(tab.id)"
+              class="w-full flex items-center justify-between gap-2 px-3 py-2.5 rounded-lg text-slate-300 hover:bg-slate-700 hover:text-slate-100 transition-colors duration-200 cursor-pointer min-h-[44px] focus:outline-none focus:ring-2 focus:ring-cyan-500 focus:ring-inset group"
+              :class="{ 'bg-slate-700 text-cyan-400': tab.active && route.path === '/terminal' }"
+            >
+              <span class="truncate text-sm">{{ tab.title }}</span>
+              <button
+                @click="(e) => handleTabClose(tab.id, e)"
+                class="p-1 rounded opacity-0 group-hover:opacity-100 hover:bg-slate-600 transition-all duration-200 flex-shrink-0"
+                aria-label="关闭标签"
+              >
+                <X class="w-3 h-3" aria-hidden="true" />
+              </button>
+            </button>
+          </div>
+        </div>
       </nav>
       <div class="p-4 border-t border-slate-700">
         <button

frontend/src/views/TerminalWorkspaceView.vue

@@ -1,12 +1,9 @@
 <script setup lang="ts">
 import { computed, onMounted } from 'vue'
-import { useRouter } from 'vue-router'
 import { useTerminalTabsStore } from '../stores/terminalTabs'
 import { useConnectionsStore } from '../stores/connections'
 import TerminalWidget from '../components/TerminalWidget.vue'
-import { ArrowLeft, X } from 'lucide-vue-next'
 
-const router = useRouter()
 const tabsStore = useTerminalTabsStore()
 const connectionsStore = useConnectionsStore()
 
@@ -18,69 +15,16 @@ onMounted(() => {
     connectionsStore.fetchConnections()
   }
 })
-
-function handleTabClick(tabId: string) {
-  tabsStore.activate(tabId)
-}
-
-function handleTabClose(tabId: string, event: Event) {
-  event.stopPropagation()
-  tabsStore.close(tabId)
-}
-
-function goBack() {
-  router.push('/connections')
-}
 </script>
 
 <template>
   <div class="h-full flex flex-col">
-    <!-- 顶部导航栏 -->
-    <div class="flex items-center gap-4 px-4 py-3 border-b border-slate-700 bg-slate-800/50">
-      <button
-        @click="goBack"
-        class="p-2 rounded-lg text-slate-400 hover:bg-slate-700 hover:text-slate-100 transition-colors duration-200 cursor-pointer"
-        aria-label="返回"
-      >
-        <ArrowLeft class="w-5 h-5" aria-hidden="true" />
-      </button>
-      <h2 class="text-lg font-semibold text-slate-100">终端</h2>
-    </div>
-
-    <!-- 标签栏 -->
-    <div
-      v-if="tabs.length > 0"
-      class="flex items-center gap-2 px-4 py-2 border-b border-slate-700 bg-slate-900/50 overflow-x-auto"
-    >
-      <div
-        v-for="tab in tabs"
-        :key="tab.id"
-        @click="handleTabClick(tab.id)"
-        class="flex items-center gap-2 px-3 py-2 rounded-lg cursor-pointer transition-colors duration-200 whitespace-nowrap"
-        :class="tab.active ? 'bg-slate-700 text-slate-100' : 'bg-slate-800 text-slate-400 hover:bg-slate-700/50 hover:text-slate-200'"
-      >
-        <span class="text-sm font-medium">{{ tab.title }}</span>
-        <button
-          @click="(e) => handleTabClose(tab.id, e)"
-          class="p-1 rounded hover:bg-slate-600 transition-colors duration-200"
-          aria-label="关闭标签"
-        >
-          <X class="w-3 h-3" aria-hidden="true" />
-        </button>
-      </div>
-    </div>
-
     <!-- 终端内容区 -->
     <div class="flex-1 min-h-0 p-4">
       <div v-if="tabs.length === 0" class="flex items-center justify-center h-full text-slate-400">
         <div class="text-center">
-          <p class="mb-2">暂无打开的终端</p>
-          <button
-            @click="goBack"
-            class="px-4 py-2 rounded-lg bg-cyan-600 hover:bg-cyan-500 text-white transition-colors duration-200 cursor-pointer"
-          >
-            返回连接列表
-          </button>
+          <p class="text-lg mb-2">暂无打开的终端</p>
+          <p class="text-sm text-slate-500">从左侧连接列表点击"终端"按钮打开</p>
         </div>
       </div>
       <div v-else class="h-full">