chore: 保存工作副本——客户端授权新契约(双端点/验签/令牌/周检)与桌面会话可靠性改进

test/components/TabContextMenu.test.tsx

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+import { fireEvent, render, screen } from '@testing-library/react'
+import { describe, expect, it, vi } from 'vitest'
+import { TabContextMenu } from '../../src/components/layout/tabbar/TabContextMenu'
+import { tabSupportsReconnect } from '../../src/utils/tabReconnect'
+
+describe('TabContextMenu', () => {
+  it('lists SFTP, clone, reconnect, then close actions', () => {
+    const onReconnect = vi.fn()
+    render(
+      <TabContextMenu
+        isOpen
+        position={{ x: 8, y: 8 }}
+        onClose={vi.fn()}
+        onCloseTab={vi.fn()}
+        onCloseOthers={vi.fn()}
+        onCloseRight={vi.fn()}
+        onCloseLeft={vi.fn()}
+        onCloseAll={vi.fn()}
+        onClone={vi.fn()}
+        onOpenSftp={vi.fn()}
+        onReconnect={onReconnect}
+      />
+    )
+
+    const labels = screen.getAllByRole('button').map((button) => button.textContent)
+    expect(labels.slice(0, 4)).toEqual(['打开 SFTP', '克隆标签', '重新连接', '关闭'])
+    fireEvent.click(screen.getByRole('button', { name: '重新连接' }))
+    expect(onReconnect).toHaveBeenCalledTimes(1)
+  })
+
+  it('offers reconnect for SSH / SFTP / desktop tabs only', () => {
+    expect(tabSupportsReconnect({ type: 'terminal' })).toBe(true)
+    expect(tabSupportsReconnect({ type: 'sftp' })).toBe(true)
+    expect(tabSupportsReconnect({ type: 'rdp' })).toBe(true)
+    expect(tabSupportsReconnect({ type: 'welcome' })).toBe(false)
+    expect(tabSupportsReconnect({ type: 'settings' })).toBe(false)
+  })
+})