docs: 添加 sftp 标签页规格与计划文档

docs/superpowers/plans/2026-03-24-sftp-tabs.md

@@ -0,0 +1,201 @@
+# SFTP Sidebar Tabs Implementation Plan
+
+> **For agentic workers:** REQUIRED: Use superpowers:subagent-driven-development (if subagents available) or superpowers:executing-plans to implement this plan. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Add non-duplicated, session-scoped SFTP tabs in the sidebar so users can return to file sessions without losing tab entries.
+
+**Architecture:** Introduce a dedicated Pinia store (`sftpTabs`) parallel to `terminalTabs`, then wire it into `ConnectionsView`, `MainLayout`, and `SftpView`. Keep `/sftp/:id` as the single SFTP route and use route-driven synchronization so tab switching updates the view correctly without stale state.
+
+**Tech Stack:** Vue 3, TypeScript, Pinia, Vue Router, Vite, vue-tsc
+
+---
+
+## File Structure
+
+- Create: `frontend/src/stores/sftpTabs.ts`
+  - Owns SFTP tab state and actions (`openOrFocus`, `activate`, `close`).
+- Modify: `frontend/src/views/ConnectionsView.vue`
+  - Registers/focuses SFTP tab before routing to `/sftp/:id`.
+- Modify: `frontend/src/layouts/MainLayout.vue`
+  - Renders SFTP sidebar tabs, handles click/close navigation behavior.
+- Modify: `frontend/src/views/SftpView.vue`
+  - Keeps route param and SFTP tab state in sync via watcher.
+- Verify: `frontend/src/router/index.ts`
+  - Route shape remains unchanged (`/sftp/:id`).
+- Verify: `docs/superpowers/specs/2026-03-24-sftp-tabs-design.md`
+  - Source of truth for requirements and acceptance criteria.
+
+### Task 1: Add Dedicated SFTP Tabs Store
+
+**Files:**
+- Create: `frontend/src/stores/sftpTabs.ts`
+- Reference: `frontend/src/stores/terminalTabs.ts`
+
+- [ ] **Step 1: Check current store pattern and workspace status**
+
+Run `git status --short` and read `frontend/src/stores/terminalTabs.ts` to mirror established naming/style patterns.
+
+- [ ] **Step 2: Add `SftpTab` model and store state**
+
+Create `sftpTabs` store with:
+
+```ts
+export interface SftpTab {
+  id: string
+  connectionId: number
+  title: string
+  active: boolean
+}
+```
+
+State and computed:
+
+```ts
+const tabs = ref<SftpTab[]>([])
+const activeTabId = ref<string | null>(null)
+const activeTab = computed(() => tabs.value.find(t => t.id === activeTabId.value) || null)
+```
+
+- [ ] **Step 3: Implement open/activate/close logic with dedup**
+
+Implement actions analogous to terminal tabs:
+
+- `openOrFocus(connection)` reuses existing tab by `connectionId`
+- `activate(tabId)` flips active flags and updates `activeTabId`
+- `close(tabId)` removes tab and activates neighbor when needed
+
+- [ ] **Step 4: Build-check after new store**
+
+Run in `frontend/`: `npm run build`
+
+Expected: build succeeds and no type errors in new store.
+
+### Task 2: Register SFTP Tabs from Connections Entry
+
+**Files:**
+- Modify: `frontend/src/views/ConnectionsView.vue`
+- Use: `frontend/src/stores/sftpTabs.ts`
+
+- [ ] **Step 1: Add store import and instance**
+
+Import `useSftpTabsStore` and initialize `const sftpTabsStore = useSftpTabsStore()`.
+
+- [ ] **Step 2: Update `openSftp(conn)` behavior**
+
+Before routing, call:
+
+```ts
+sftpTabsStore.openOrFocus(conn)
+router.push(`/sftp/${conn.id}`)
+```
+
+- [ ] **Step 3: Build-check for integration safety**
+
+Run in `frontend/`: `npm run build`
+
+Expected: build succeeds and `ConnectionsView` typing remains valid.
+
+### Task 3: Render and Control SFTP Tabs in Sidebar
+
+**Files:**
+- Modify: `frontend/src/layouts/MainLayout.vue`
+- Use: `frontend/src/stores/sftpTabs.ts`
+
+- [ ] **Step 1: Add SFTP store wiring and computed values**
+
+Add:
+
+- `const sftpTabsStore = useSftpTabsStore()`
+- `const sftpTabs = computed(() => sftpTabsStore.tabs)`
+- route helper for SFTP context (for active styling and close-navigation logic)
+
+- [ ] **Step 2: Add SFTP tab click and close handlers**
+
+Implement:
+
+- click handler: activate tab + `router.push(`/sftp/${tab.connectionId}`)` + close sidebar
+- close handler:
+  - always close in store
+  - only navigate when current route is the closed tab's route
+  - if tabs remain, navigate to active tab route
+  - if no tabs remain, navigate `/connections`
+
+- [ ] **Step 3: Render `文件` sidebar section near terminal section**
+
+Add a section matching current visual style conventions:
+
+- title row with `FolderOpen` icon and text `文件`
+- list items for `sftpTabs`
+- close button per item
+- active class aligned with current route context
+
+- [ ] **Step 4: Build-check and inspect no terminal regressions**
+
+Run in `frontend/`: `npm run build`
+
+Expected: build succeeds; no type/template errors in `MainLayout`.
+
+### Task 4: Route-Driven Sync in SFTP View
+
+**Files:**
+- Modify: `frontend/src/views/SftpView.vue`
+- Use: `frontend/src/stores/sftpTabs.ts`
+
+- [ ] **Step 1: Add SFTP tabs store and route-param watcher**
+
+Add watcher on `route.params.id` with `{ immediate: true }` so first load and tab switching share one code path.
+
+- [ ] **Step 2: Consolidate initialization into watcher path**
+
+Use watcher flow:
+
+- parse and validate id; if invalid, show user-visible error feedback, do not create/open any SFTP tab, and navigate to `/connections`
+- ensure connections loaded (fetch when needed)
+- resolve connection; if missing, show user-visible error and route back to `/connections`
+- call `sftpTabsStore.openOrFocus(connection)`
+- refresh connection-bound SFTP view state for current route id
+
+Avoid duplicate request/init logic split across both watcher and old mount flow.
+
+- [ ] **Step 3: Keep existing file-management behavior unchanged**
+
+Do not alter existing upload/download/delete/core SFTP operations; only route/tab synchronization behavior should change.
+
+- [ ] **Step 4: Build-check after route-sync changes**
+
+Run in `frontend/`: `npm run build`
+
+Expected: build succeeds and SftpView compiles cleanly.
+
+### Task 5: End-to-End Verification
+
+**Files:**
+- Verify runtime behavior in app UI
+- Verify `frontend/src/router/index.ts` unchanged for route shape
+
+- [ ] **Step 1: Run final build verification**
+
+Run in `frontend/`: `npm run build`
+
+Expected: `vue-tsc -b` and Vite build both pass.
+
+- [ ] **Step 2: Manual behavior checks**
+
+Verify all acceptance criteria:
+
+1. Same-connection `文件` clicks do not create duplicate tabs.
+2. Multiple SFTP tabs can be opened and switched.
+3. Navigating away (for example back to connections) keeps SFTP tabs in sidebar during current session.
+4. Closing active/non-active tabs follows designed route behavior.
+5. Switching `/sftp/:id` between tabs updates header/file list without stale previous-connection state.
+6. Invalid/nonexistent `/sftp/:id` creates no tab, shows visible feedback, and routes back to `/connections`.
+7. Terminal tabs continue to open/switch/close normally.
+
+- [ ] **Step 3: Commit if user requests**
+
+If the user asks to commit, keep commit focused:
+
+```bash
+git add frontend/src/stores/sftpTabs.ts frontend/src/views/ConnectionsView.vue frontend/src/layouts/MainLayout.vue frontend/src/views/SftpView.vue
+git commit -m "feat: add sidebar tabs for sftp sessions"
+```

docs/superpowers/specs/2026-03-24-sftp-tabs-design.md

@@ -0,0 +1,126 @@
+# 2026-03-24 SFTP Tabs Design
+
+## Background
+
+The current connection list provides both `终端` and `文件` actions. `终端` has persistent sidebar tabs, but `文件` (SFTP) opens a route directly and has no sidebar tab lifecycle. Users lose the quick return path after navigating away, which feels inconsistent.
+
+## Goal
+
+- Add sidebar tabs for SFTP sessions near the existing terminal tabs.
+- Ensure SFTP tabs are unique per connection (no duplicates).
+- Keep tab state only for the current in-memory session.
+
+## Non-Goals
+
+- No persistence across full page refresh (no localStorage/sessionStorage).
+- No refactor that merges terminal and SFTP tab models into one generic tab system.
+- No route restructuring; keep `/sftp/:id` as the SFTP route entry.
+
+## Current State
+
+- Terminal tabs are managed by `frontend/src/stores/terminalTabs.ts` and rendered in `frontend/src/layouts/MainLayout.vue`.
+- `ConnectionsView` opens terminal via `terminalTabs.openOrFocus(conn)` and then routes to `/terminal`.
+- `ConnectionsView` opens SFTP by routing directly to `/sftp/:id`, with no tab store.
+- `SftpView` currently has no tab registration step.
+
+## Selected Approach
+
+Introduce a dedicated SFTP tab store and render a new sidebar tab section in `MainLayout`, following the same interaction model as terminal tabs while keeping route behavior centered on `/sftp/:id`.
+
+### 1. New store: `sftpTabs`
+
+Create `frontend/src/stores/sftpTabs.ts` with a model parallel to terminal tabs:
+
+- `tabs: SftpTab[]`
+- `activeTabId: string | null`
+- `activeTab` computed
+- `openOrFocus(connection)`
+- `activate(tabId)`
+- `close(tabId)`
+
+Each tab includes:
+
+- `id: string`
+- `connectionId: number`
+- `title: string`
+- `active: boolean`
+
+Dedup rule:
+
+- `openOrFocus(connection)` must reuse an existing tab when `connectionId` matches.
+
+### 2. Connection list behavior
+
+Update `frontend/src/views/ConnectionsView.vue`:
+
+- In `openSftp(conn)`, call `sftpTabs.openOrFocus(conn)` before `router.push(`/sftp/${conn.id}`)`.
+
+Result:
+
+- Clicking `文件` on the same connection repeatedly does not create duplicate tabs.
+
+### 3. Sidebar rendering and controls
+
+Update `frontend/src/layouts/MainLayout.vue`:
+
+- Import and use `useSftpTabsStore`.
+- Add computed `sftpTabs`.
+- Add a new sidebar section (near terminal tabs) titled `文件`.
+- Render each tab as a clickable item with close button.
+
+Interactions:
+
+- Click tab: activate and navigate to `/sftp/:connectionId`.
+- Close tab:
+  - Always remove the tab from store.
+  - Only trigger route navigation when the current route is the closed tab's route (`/sftp/:connectionId`):
+    - If another SFTP tab remains, navigate to `/sftp/:newActiveConnectionId`.
+    - If no SFTP tabs remain, navigate to `/connections`.
+  - If closing a non-active tab, or closing from a non-SFTP route, remove only (no route change).
+
+Highlighting:
+
+- Keep active style tied to both tab active state and current SFTP route context.
+
+### 4. Route-entry consistency
+
+Update `frontend/src/views/SftpView.vue`:
+
+- Import and use `useSftpTabsStore`.
+- Watch `route.params.id` with `{ immediate: true }` so logic runs on first load and on `/sftp/:id` param changes (tab-to-tab switching).
+- On each `id` change:
+  - Parse `id` to number; if invalid, navigate to `/connections`.
+  - Ensure connections are loaded (fetch when needed).
+  - Resolve the matching connection; if not found, show error feedback and navigate to `/connections`.
+  - Call `sftpTabs.openOrFocus(connection)` and then refresh SFTP view state for that connection.
+- Consolidate route-driven initialization into this watcher (avoid a separate `onMounted` path-init flow for the same concern) so first load and param switching use one code path and do not trigger duplicate requests.
+
+This keeps behavior consistent for direct navigation and sidebar tab switching, without duplicate tabs.
+
+## Behavior Kept Unchanged
+
+- Existing terminal tab logic and terminal workspace lifecycle.
+- Existing SFTP route path (`/sftp/:id`) and core file-management interactions remain unchanged, except for tab registration/sync and invalid-or-missing connection route handling described above.
+- Authentication and router guards.
+- UI visual language (slate/cyan styling).
+
+## Acceptance Criteria
+
+- `文件` opens/activates an SFTP tab in sidebar.
+- Repeatedly opening `文件` for the same connection does not create duplicate tabs.
+- SFTP tabs remain available when navigating back to connections or other pages within the same session.
+- Closing active/non-active SFTP tabs follows the navigation rules above.
+- Terminal tabs continue working exactly as before.
+- Switching between existing SFTP tabs (for example `/sftp/1` and `/sftp/2`) updates connection header and file list correctly, without stale data from the previous connection.
+- Direct navigation to an invalid or nonexistent `/sftp/:id` does not create a tab and returns the user to `/connections` with visible feedback.
+
+## Verification
+
+- Run `npm run build` in `frontend/`.
+- Manual verification:
+  1. Open SFTP for one connection multiple times and confirm single tab.
+  2. Open SFTP for multiple connections and switch between tabs.
+  3. Navigate away and return via sidebar SFTP tabs.
+  4. Close active and inactive SFTP tabs and verify resulting route behavior.
+  5. Re-check terminal tab open/switch/close behavior for regressions.
+  6. Open an invalid/nonexistent `/sftp/:id` and verify no tab is created, visible error feedback appears, and navigation returns to `/connections`.

frontend/src/layouts/MainLayout.vue

@@ -3,18 +3,21 @@ import { ref, computed } from 'vue'
 import { RouterLink, useRoute, useRouter } from 'vue-router'
 import { useAuthStore } from '../stores/auth'
 import { useConnectionsStore } from '../stores/connections'
+import { useSftpTabsStore } from '../stores/sftpTabs'
 import { useTerminalTabsStore } from '../stores/terminalTabs'
 import TerminalWorkspaceView from '../views/TerminalWorkspaceView.vue'
-import { ArrowLeftRight, Server, LogOut, Menu, X, Terminal } from 'lucide-vue-next'
+import { ArrowLeftRight, Server, LogOut, Menu, X, Terminal, FolderOpen } from 'lucide-vue-next'
 
 const route = useRoute()
 const router = useRouter()
 const authStore = useAuthStore()
 const connectionsStore = useConnectionsStore()
+const sftpTabsStore = useSftpTabsStore()
 const tabsStore = useTerminalTabsStore()
 const sidebarOpen = ref(false)
 
 const terminalTabs = computed(() => tabsStore.tabs)
+const sftpTabs = computed(() => sftpTabsStore.tabs)
 const showTerminalWorkspace = computed(() => route.path === '/terminal')
 const keepTerminalWorkspaceMounted = computed(() => showTerminalWorkspace.value || terminalTabs.value.length > 0)
 
@@ -34,6 +37,35 @@ function handleTabClose(tabId: string, event: Event) {
   event.stopPropagation()
   tabsStore.close(tabId)
 }
+
+function isCurrentSftpRoute(connectionId: number) {
+  if (route.name !== 'Sftp') return false
+
+  const routeParamId = Array.isArray(route.params.id) ? route.params.id[0] : route.params.id
+  return Number(routeParamId) === connectionId
+}
+
+function handleSftpTabClick(tabId: string, connectionId: number) {
+  sftpTabsStore.activate(tabId)
+  router.push(`/sftp/${connectionId}`)
+  closeSidebar()
+}
+
+function handleSftpTabClose(tabId: string, connectionId: number, event: Event) {
+  event.stopPropagation()
+
+  const shouldNavigate = isCurrentSftpRoute(connectionId)
+  sftpTabsStore.close(tabId)
+
+  if (!shouldNavigate) return
+
+  if (sftpTabsStore.activeTab) {
+    router.push(`/sftp/${sftpTabsStore.activeTab.connectionId}`)
+    return
+  }
+
+  router.push('/connections')
+}
 </script>
 
 <template>
@@ -104,6 +136,38 @@ function handleTabClose(tabId: string, event: Event) {
             </button>
           </div>
         </div>
+
+        <div v-if="sftpTabs.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">
+            <FolderOpen class="w-4 h-4" aria-hidden="true" />
+            <span>文件</span>
+          </div>
+          <div class="space-y-1 mt-2">
+            <div
+              v-for="tab in sftpTabs"
+              :key="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 min-h-[44px] group focus-within:outline-none focus-within:ring-2 focus-within:ring-cyan-500 focus-within:ring-inset"
+              :class="{ 'bg-slate-700 text-cyan-400': tab.active && route.path === `/sftp/${tab.connectionId}` }"
+            >
+              <button
+                type="button"
+                @click="handleSftpTabClick(tab.id, tab.connectionId)"
+                class="flex-1 min-w-0 text-left cursor-pointer focus:outline-none"
+                :aria-label="`打开文件标签 ${tab.title}`"
+              >
+                <span class="truncate text-sm block">{{ tab.title }}</span>
+              </button>
+              <button
+                type="button"
+                @click="(e) => handleSftpTabClose(tab.id, tab.connectionId, e)"
+                class="p-1 rounded opacity-0 group-hover:opacity-100 group-focus-within:opacity-100 focus:opacity-100 hover:bg-slate-600 transition-opacity duration-200 transition-colors flex-shrink-0 focus:outline-none focus:ring-2 focus:ring-cyan-500"
+                aria-label="关闭文件标签"
+              >
+                <X class="w-3 h-3" aria-hidden="true" />
+              </button>
+            </div>
+          </div>
+        </div>
       </nav>
       <div class="p-4 border-t border-slate-700">
         <button

frontend/src/stores/sftpTabs.ts

@@ -0,0 +1,84 @@
+import { defineStore } from 'pinia'
+import { ref, computed } from 'vue'
+import type { Connection } from '../api/connections'
+
+export interface SftpTab {
+  id: string
+  connectionId: number
+  title: string
+  active: boolean
+}
+
+export const useSftpTabsStore = defineStore('sftpTabs', () => {
+  const tabs = ref<SftpTab[]>([])
+  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) {
+    const existing = tabs.value.find(t => t.connectionId === connection.id)
+    if (existing) {
+      activate(existing.id)
+      return existing.id
+    }
+
+    const newTab: SftpTab = {
+      id: generateTabId(),
+      connectionId: connection.id,
+      title: connection.name,
+      active: true,
+    }
+
+    tabs.value.push(newTab)
+    activate(newTab.id)
+    return newTab.id
+  }
+
+  function syncActiveState() {
+    const hasActiveTab = activeTabId.value !== null && tabs.value.some(t => t.id === activeTabId.value)
+    if (!hasActiveTab) {
+      activeTabId.value = null
+    }
+
+    tabs.value.forEach(t => {
+      t.active = t.id === activeTabId.value
+    })
+  }
+
+  function activate(tabId: string) {
+    if (!tabs.value.some(t => t.id === tabId)) return
+
+    activeTabId.value = tabId
+    syncActiveState()
+  }
+
+  function close(tabId: string) {
+    const index = tabs.value.findIndex(t => t.id === tabId)
+    if (index === -1) return
+
+    const wasActive = activeTabId.value === tabId
+    tabs.value.splice(index, 1)
+
+    if (wasActive && tabs.value.length > 0) {
+      const newIndex = Math.min(index, tabs.value.length - 1)
+      activeTabId.value = tabs.value[newIndex]!.id
+    } else if (tabs.value.length === 0) {
+      activeTabId.value = null
+    }
+
+    syncActiveState()
+  }
+
+  return {
+    tabs,
+    activeTabId,
+    activeTab,
+    openOrFocus,
+    activate,
+    close,
+  }
+})

frontend/src/views/ConnectionsView.vue

@@ -2,6 +2,7 @@
 import { computed, ref, onMounted, watch } from 'vue'
 import { useRouter, useRoute } from 'vue-router'
 import { useConnectionsStore } from '../stores/connections'
+import { useSftpTabsStore } from '../stores/sftpTabs'
 import { useTerminalTabsStore } from '../stores/terminalTabs'
 import type { Connection, ConnectionCreateRequest } from '../api/connections'
 import ConnectionForm from '../components/ConnectionForm.vue'
@@ -22,6 +23,7 @@ const router = useRouter()
 const route = useRoute()
 const store = useConnectionsStore()
 const tabsStore = useTerminalTabsStore()
+const sftpTabsStore = useSftpTabsStore()
 
 const showForm = ref(false)
 const editingConn = ref<Connection | null>(null)
@@ -95,6 +97,7 @@ function openTerminal(conn: Connection) {
 }
 
 function openSftp(conn: Connection) {
+  sftpTabsStore.openOrFocus(conn)
   router.push(`/sftp/${conn.id}`)
 }
 

frontend/src/views/SftpView.vue

@@ -1,8 +1,9 @@
 <script setup lang="ts">
-import { ref, computed, watch, onMounted, onBeforeUnmount } from 'vue'
+import { ref, computed, watch, onBeforeUnmount } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { useToast } from 'vue-toast-notification'
 import { useConnectionsStore } from '../stores/connections'
+import { useSftpTabsStore } from '../stores/sftpTabs'
 import * as sftpApi from '../api/sftp'
 import type { SftpFileInfo } from '../api/sftp'
 import {
@@ -27,6 +28,7 @@ const route = useRoute()
 const router = useRouter()
 const toast = useToast()
 const store = useConnectionsStore()
+const sftpTabsStore = useSftpTabsStore()
 
 const connectionId = computed(() => Number(route.params.id))
 const conn = ref(store.getConnection(connectionId.value))
@@ -59,12 +61,23 @@ watch([searchQuery, showHiddenFiles, files], () => {
 }, { immediate: true })
 
 onBeforeUnmount(() => {
+  invalidateUploadContext()
   clearTimeout(searchDebounceTimer)
   stopTransferProgress()
 })
 
 const showUploadProgress = ref(false)
 const uploadProgressList = ref<{ id: string; name: string; size: number; uploaded: number; total: number; status: 'pending' | 'uploading' | 'success' | 'error'; message?: string }[]>([])
+let activeUploadContextId = 0
+
+function createUploadContext() {
+  activeUploadContextId += 1
+  return activeUploadContextId
+}
+
+function invalidateUploadContext() {
+  activeUploadContextId += 1
+}
 
 const totalProgress = computed(() => {
   if (uploadProgressList.value.length === 0) return 0
@@ -164,50 +177,152 @@ async function cancelTransfer() {
   }
 }
 
-onMounted(() => {
-  conn.value = store.getConnection(connectionId.value)
-  if (!conn.value) {
-    store.fetchConnections().then(() => {
-      conn.value = store.getConnection(connectionId.value)
-      initPath()
-    })
-  } else {
-    initPath()
-  }
-})
+let routeInitRequestId = 0
+
+function isStaleRouteInit(requestId?: number, isCancelled?: () => boolean) {
+  return (isCancelled?.() ?? false) || (requestId != null && requestId !== routeInitRequestId)
+}
+
+function resetVolatileSftpState() {
+  invalidateUploadContext()
+  conn.value = undefined
+  currentPath.value = '.'
+  pathParts.value = []
+  files.value = []
+  filteredFiles.value = []
+  loading.value = false
+  error.value = ''
+  selectedFile.value = null
+  searchQuery.value = ''
+
+  showUploadProgress.value = false
+  uploadProgressList.value = []
+  uploading.value = false
+
+  stopTransferProgress()
+  showTransferModal.value = false
+  transferFile.value = null
+  transferTargetConnectionId.value = null
+  transferTargetPath.value = ''
+  transferError.value = ''
+  transferring.value = false
+  resetTransferProgress()
+}
+
+watch(
+  () => route.params.id,
+  async (routeId, _, onCleanup) => {
+    const requestId = ++routeInitRequestId
+    let cleanedUp = false
+    onCleanup(() => {
+      cleanedUp = true
+    })
+
+    const isRouteInitCancelled = () => cleanedUp
+    resetVolatileSftpState()
+
+    const rawId = Array.isArray(routeId) ? routeId[0] : routeId
+    const parsedId = Number(rawId)
+
+    if (!rawId || !Number.isInteger(parsedId) || parsedId <= 0) {
+      if (isStaleRouteInit(requestId, isRouteInitCancelled)) return
+      conn.value = undefined
+      await redirectToConnections('连接参数无效，请从连接列表重新进入', requestId, isRouteInitCancelled)
+      return
+    }
+
+    if (store.connections.length === 0) {
+      try {
+        await store.fetchConnections()
+      } catch {
+        if (isStaleRouteInit(requestId, isRouteInitCancelled)) return
+        await redirectToConnections('加载连接列表失败，请稍后重试', requestId, isRouteInitCancelled)
+        return
+      }
+
+      if (isStaleRouteInit(requestId, isRouteInitCancelled)) return
+    }
+
+    const targetConnection = store.getConnection(parsedId)
+    if (!targetConnection) {
+      if (isStaleRouteInit(requestId, isRouteInitCancelled)) return
+      conn.value = undefined
+      await redirectToConnections('连接不存在或已删除', requestId, isRouteInitCancelled)
+      return
+    }
+
+    if (isStaleRouteInit(requestId, isRouteInitCancelled)) return
+    conn.value = targetConnection
+    sftpTabsStore.openOrFocus(targetConnection)
+    await initPath(parsedId, requestId, isRouteInitCancelled)
+  },
+  { immediate: true }
+)
+
+async function redirectToConnections(
+  message: string,
+  requestId = routeInitRequestId,
+  isCancelled?: () => boolean
+) {
+  if (isStaleRouteInit(requestId, isCancelled)) return
+  toast.error(message)
+  if (isStaleRouteInit(requestId, isCancelled)) return
+  await router.replace('/connections')
+}
+
+async function initPath(
+  targetConnectionId = connectionId.value,
+  requestId = routeInitRequestId,
+  isCancelled?: () => boolean
+) {
+  try {
+    const res = await sftpApi.getPwd(targetConnectionId)
+    if (isStaleRouteInit(requestId, isCancelled)) return
 
-function initPath() {
-  sftpApi.getPwd(connectionId.value).then((res) => {
     const p = res.data.path || '/'
     currentPath.value = p === '/' ? '/' : p
     pathParts.value = p === '/' ? [''] : p.split('/').filter(Boolean)
-    loadPath()
-  }).catch((err: { response?: { data?: { error?: string } } }) => {
-    error.value = err?.response?.data?.error ?? '获取当前路径失败，请检查连接与认证'
+    await loadPath(targetConnectionId, requestId, isCancelled)
+  } catch (err) {
+    if (isStaleRouteInit(requestId, isCancelled)) return
+
+    const typedErr = err as { response?: { data?: { error?: string } } }
+    error.value = typedErr?.response?.data?.error ?? '获取当前路径失败，请检查连接与认证'
     currentPath.value = '.'
     pathParts.value = []
-    loadPath()
-  })
+    await loadPath(targetConnectionId, requestId, isCancelled)
+  }
 }
 
-function loadPath() {
+async function loadPath(
+  targetConnectionId = connectionId.value,
+  requestId = routeInitRequestId,
+  isCancelled?: () => boolean
+) {
+  if (isStaleRouteInit(requestId, isCancelled)) return
+
   loading.value = true
   error.value = ''
   searchQuery.value = ''
-  sftpApi
-    .listFiles(connectionId.value, currentPath.value)
-    .then((res) => {
+
+  try {
+    const res = await sftpApi.listFiles(targetConnectionId, currentPath.value)
+    if (isStaleRouteInit(requestId, isCancelled)) return
+
     files.value = res.data.sort((a, b) => {
       if (a.directory !== b.directory) return a.directory ? -1 : 1
       return a.name.localeCompare(b.name)
     })
-    })
-    .catch((err: { response?: { data?: { error?: string } } }) => {
-      error.value = err?.response?.data?.error ?? '获取文件列表失败'
-    })
-    .finally(() => {
+  } catch (err) {
+    if (isStaleRouteInit(requestId, isCancelled)) return
+
+    const typedErr = err as { response?: { data?: { error?: string } } }
+    error.value = typedErr?.response?.data?.error ?? '获取文件列表失败'
+  } finally {
+    if (!isStaleRouteInit(requestId, isCancelled)) {
       loading.value = false
-    })
+    }
+  }
 }
 
 function navigateToDir(name: string) {
@@ -268,9 +383,14 @@ function triggerUpload() {
 }
 
 async function handleFileSelect(e: Event) {
+  const uploadContextId = createUploadContext()
+  const isUploadStale = () => uploadContextId !== activeUploadContextId
+
   const input = e.target as HTMLInputElement
   const selected = input.files
-  if (!selected?.length) return
+  if (!selected?.length || isUploadStale()) return
+
+  const targetConnectionId = connectionId.value
   uploading.value = true
   error.value = ''
   const path = currentPath.value === '.' ? '' : currentPath.value
@@ -296,23 +416,34 @@ async function handleFileSelect(e: Event) {
   const MAX_PARALLEL = 5
   
   for (let i = 0; i < uploadTasks.length; i += MAX_PARALLEL) {
+    if (isUploadStale()) return
+
     const batch = uploadTasks.slice(i, i + MAX_PARALLEL)
     const batchPromises = batch.map(async task => {
-      if (!task) return
+      if (!task || isUploadStale()) return
+
       const { id, file } = task
       const item = uploadProgressList.value.find(item => item.id === id)
-      if (!item) return
+      if (!item || isUploadStale()) return
       
       item.status = 'uploading'
       
       try {
+        if (isUploadStale()) return
+
         // Start upload and get taskId
-        const uploadRes = await sftpApi.uploadFile(connectionId.value, path, file)
+        const uploadRes = await sftpApi.uploadFile(targetConnectionId, path, file)
+        if (isUploadStale()) return
+
         const taskId = uploadRes.data.taskId
         
         // Poll for progress
         while (true) {
+          if (isUploadStale()) return
+
           const statusRes = await sftpApi.getUploadTask(taskId)
+          if (isUploadStale()) return
+
           const taskStatus = statusRes.data
           
           item.uploaded = taskStatus.transferredBytes
@@ -331,6 +462,8 @@ async function handleFileSelect(e: Event) {
           await new Promise(resolve => setTimeout(resolve, 200))
         }
       } catch (err: any) {
+        if (isUploadStale()) return
+
         item.status = 'error'
         item.message = err?.response?.data?.error || 'Upload failed'
       }
@@ -338,12 +471,20 @@ async function handleFileSelect(e: Event) {
     await Promise.allSettled(batchPromises)
   }
 
-  await loadPath()
+  if (isUploadStale()) return
+
+  await loadPath(targetConnectionId)
+  if (isUploadStale()) return
+
   const successCount = uploadProgressList.value.filter(item => item.status === 'success').length
   showUploadProgress.value = false
   uploadProgressList.value = []
   uploading.value = false
-  fileInputRef.value!.value = ''
+  if (fileInputRef.value) {
+    fileInputRef.value.value = ''
+  }
+
+  if (isUploadStale()) return
   toast.success(`成功上传 ${successCount} 个文件`)
 }
 
@@ -489,7 +630,7 @@ async function submitTransfer() {
               <FolderPlus class="w-4 h-4" aria-hidden="true" />
             </button>
             <button
-              @click="loadPath"
+              @click="loadPath()"
               :disabled="loading"
               class="p-2 rounded-lg text-slate-400 hover:bg-slate-700 hover:text-slate-100 transition-colors duration-200 cursor-pointer disabled:opacity-50"
               aria-label="刷新"