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/ShellClosedOverlay.test.tsx

@@ -1,13 +1,14 @@
 import { fireEvent, render, screen } from '@testing-library/react'
 import { describe, expect, it, vi } from 'vitest'
-import { ShellClosedOverlay } from '../../src/components/terminal/TerminalOverlay'
+import TerminalOverlay, { ShellClosedOverlay } from '../../src/components/terminal/TerminalOverlay'
 
 describe('remote shell close recovery', () => {
   it('explains remote TMOUT without claiming the pooled SSH connection is dead', () => {
     const reopen = vi.fn()
-    render(<ShellClosedOverlay reason="远端 Shell 因空闲策略（TMOUT）自动退出" idleTimeout onReopen={reopen} />)
+    render(<ShellClosedOverlay reason="shell.idleTimeout" idleTimeout onReopen={reopen} />)
 
     expect(screen.getByText('空闲超时，Shell 已退出')).toBeVisible()
+    expect(screen.getByText('远端 Shell 因空闲超时退出（TMOUT）')).toBeVisible()
     expect(screen.getByText(/SSH 连接仍可用/)).toBeVisible()
     fireEvent.click(screen.getByRole('button', { name: '重新打开 Shell' }))
     expect(reopen).toHaveBeenCalledTimes(1)
@@ -22,3 +23,23 @@ describe('remote shell close recovery', () => {
     expect(screen.queryByText(/SSH 连接仍可用/)).toBeNull()
   })
 })
+
+describe('connection disconnect overlay', () => {
+  it('explains keepalive failure without calling it a user close', () => {
+    render(
+      <TerminalOverlay
+        connectionState="disconnected"
+        statusMessage=""
+        showSuspendedOverlay={false}
+        needsReconnect
+        disconnectKind="keepalive"
+        onReconnect={vi.fn()}
+        onResume={vi.fn()}
+      />
+    )
+
+    expect(screen.getByText('心跳失败，连接已断开')).toBeVisible()
+    expect(screen.getByText(/不会向 Shell 发送按键/)).toBeVisible()
+    expect(screen.queryByText(/closed by user/i)).toBeNull()
+  })
+})