feat: 支持应用内多 SSH 终端标签页

- 新增 terminalTabs store 管理标签页状态
- 新增 TerminalWorkspaceView 终端工作区视图
- 修改 ConnectionsView 终端按钮改用标签页模式
- 修改 TerminalView 作为兼容入口自动跳转到工作区
- 同一连接默认只保留一个标签页
- 切换标签时保持各自 SSH 会话不断开

frontend/src/router/index.ts

@@ -24,16 +24,21 @@ const routes: RouteRecordRaw[] = [
         name: 'Transfers',
         component: () => import('../views/TransfersView.vue'),
       },
-      {
-        path: 'connections',
-        name: 'Connections',
-        component: () => import('../views/ConnectionsView.vue'),
-      },
+      {
+        path: 'connections',
+        name: 'Connections',
+        component: () => import('../views/ConnectionsView.vue'),
+      },
+      {
+        path: 'terminal',
+        name: 'TerminalWorkspace',
+        component: () => import('../views/TerminalWorkspaceView.vue'),
+      },
       {
         path: 'terminal/:id',
         name: 'Terminal',
         component: () => import('../views/TerminalView.vue'),
-      },
+      },
       {
         path: 'sftp/:id',
         name: 'Sftp',

frontend/src/stores/terminalTabs.ts

@@ -0,0 +1,74 @@
+import { defineStore } from 'pinia'
+import { ref, computed } from 'vue'
+import type { Connection } from '../api/connections'
+
+export interface TerminalTab {
+  id: string
+  connectionId: number
+  title: string
+  active: boolean
+}
+
+export const useTerminalTabsStore = defineStore('terminalTabs', () => {
+  const tabs = ref<TerminalTab[]>([])
+  const activeTabId = ref<string | null>(null)
+
+  const activeTab = computed(() => tabs.value.find(t => t.id === activeTabId.value) || null)
+
+  function generateTabId() {
+    return `tab-${Date.now()}-${Math.random().toString(16).slice(2)}`
+  }
+
+  function openOrFocus(connection: Connection) {
+    // 检查是否已存在该连接的标签页
+    const existing = tabs.value.find(t => t.connectionId === connection.id)
+    if (existing) {
+      activate(existing.id)
+      return existing.id
+    }
+
+    // 创建新标签页
+    const newTab: TerminalTab = {
+      id: generateTabId(),
+      connectionId: connection.id,
+      title: connection.name,
+      active: true,
+    }
+
+    tabs.value.push(newTab)
+    activate(newTab.id)
+    return newTab.id
+  }
+
+  function activate(tabId: string) {
+    tabs.value.forEach(t => {
+      t.active = t.id === tabId
+    })
+    activeTabId.value = tabId
+  }
+
+  function close(tabId: string) {
+    const index = tabs.value.findIndex(t => t.id === tabId)
+    if (index === -1) return
+
+    const wasActive = tabs.value[index]!.active
+    tabs.value.splice(index, 1)
+
+    // 如果关闭的是活动标签，激活相邻标签
+    if (wasActive && tabs.value.length > 0) {
+      const newIndex = Math.min(index, tabs.value.length - 1)
+      activate(tabs.value[newIndex]!.id)
+    } else if (tabs.value.length === 0) {
+      activeTabId.value = null
+    }
+  }
+
+  return {
+    tabs,
+    activeTabId,
+    activeTab,
+    openOrFocus,
+    activate,
+    close,
+  }
+})

frontend/src/views/ConnectionsView.vue

@@ -2,21 +2,23 @@
 import { ref, onMounted } from 'vue'
 import { useRouter } from 'vue-router'
 import { useConnectionsStore } from '../stores/connections'
-import type { Connection, ConnectionCreateRequest } from '../api/connections'
+import { useTerminalTabsStore } from '../stores/terminalTabs'
+import type { Connection, ConnectionCreateRequest } from '../api/connections'
 import ConnectionForm from '../components/ConnectionForm.vue'
-import {
-  Server,
-  Plus,
-  Terminal,
-  FolderOpen,
-  Pencil,
-  Trash2,
-  Key,
-  Lock,
-} from 'lucide-vue-next'
+import {
+  Server,
+  Plus,
+  Terminal,
+  FolderOpen,
+  Pencil,
+  Trash2,
+  Key,
+  Lock,
+} from 'lucide-vue-next'
 
 const router = useRouter()
 const store = useConnectionsStore()
+const tabsStore = useTerminalTabsStore()
 
 const showForm = ref(false)
 const editingConn = ref<Connection | null>(null)
@@ -53,12 +55,13 @@ async function handleDelete(conn: Connection) {
 }
 
 function openTerminal(conn: Connection) {
-  router.push(`/terminal/${conn.id}`)
-}
-
-function openSftp(conn: Connection) {
-  router.push(`/sftp/${conn.id}`)
+  tabsStore.openOrFocus(conn)
+  router.push('/terminal')
 }
+
+function openSftp(conn: Connection) {
+  router.push(`/sftp/${conn.id}`)
+}
 </script>
 
 <template>

frontend/src/views/TerminalView.vue

@@ -1,46 +1,37 @@
 <script setup lang="ts">
-import { ref, computed, onMounted } from 'vue'
+import { computed, onMounted } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { useConnectionsStore } from '../stores/connections'
-import TerminalWidget from '../components/TerminalWidget.vue'
-import { ArrowLeft } from 'lucide-vue-next'
+import { useTerminalTabsStore } from '../stores/terminalTabs'
 
 const route = useRoute()
 const router = useRouter()
-const store = useConnectionsStore()
+const connectionsStore = useConnectionsStore()
+const tabsStore = useTerminalTabsStore()
 
 const connectionId = computed(() => Number(route.params.id))
-const conn = ref(store.getConnection(connectionId.value))
 
-onMounted(() => {
-  conn.value = store.getConnection(connectionId.value)
-  if (!conn.value) {
-    store.fetchConnections().then(() => {
-      conn.value = store.getConnection(connectionId.value)
-    })
+onMounted(async () => {
+  // 确保连接列表已加载
+  if (connectionsStore.connections.length === 0) {
+    await connectionsStore.fetchConnections()
+  }
+
+  const conn = connectionsStore.getConnection(connectionId.value)
+  if (conn) {
+    // 打开或聚焦该连接的标签页
+    tabsStore.openOrFocus(conn)
+    // 跳转到工作区
+    router.replace('/terminal')
+  } else {
+    // 连接不存在，返回连接列表
+    router.replace('/connections')
   }
 })
 </script>
 
 <template>
-  <div class="h-full flex flex-col">
-    <div class="flex items-center gap-4 p-4 border-b border-slate-700 bg-slate-800/50">
-      <button
-        @click="router.push('/connections')"
-        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">
-        {{ conn?.name || '终端' }} - {{ conn?.username }}@{{ conn?.host }}
-      </h2>
-    </div>
-    <div class="flex-1 min-h-0 p-4">
-      <TerminalWidget v-if="conn" :connection-id="conn.id" />
-      <div v-else class="flex items-center justify-center h-64 text-slate-400">
-        加载中...
-      </div>
-    </div>
+  <div class="h-full flex items-center justify-center text-slate-400">
+    正在打开终端...
   </div>
 </template>

frontend/src/views/TerminalWorkspaceView.vue

@@ -0,0 +1,98 @@
+<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()
+
+const tabs = computed(() => tabsStore.tabs)
+
+onMounted(() => {
+  // 确保连接列表已加载
+  if (connectionsStore.connections.length === 0) {
+    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>
+        </div>
+      </div>
+      <div v-else class="h-full">
+        <div
+          v-for="tab in tabs"
+          :key="tab.id"
+          v-show="tab.active"
+          class="h-full"
+        >
+          <TerminalWidget :connection-id="tab.connectionId" />
+        </div>
+      </div>
+    </div>
+  </div>
+</template>