test: preserve native focus sequence when discarding note drafts

Wait for detail navigation and continued editing focus, and focus the cancel button before synthetic clicks so confirmation restores the actual opener. Keep draft discard and final entry focus assertions unchanged. Validate in CI without touching parallel work.

src/renderer/src/MagicNotesWorkspace.test.tsx

@@ -825,14 +825,20 @@ describe('MagicNotesWorkspace overview navigation', () => {
   it('cancels a new entry only after confirming that its draft will be discarded', async () => {
     render(<MagicNotesWorkspace onNotify={onNotify} />)
     await openNote()
+    await waitFor(() => expect(screen.getByRole('button', { name: '返回总览' })).toHaveFocus())
     newEntry()
     const composer = document.querySelector('.magic-note-composer')!
     fireEvent.click(screen.getByTestId('magic-note-editor'))
-    fireEvent.click(within(composer as HTMLElement).getByRole('button', { name: '取消' }))
+    const cancel = within(composer as HTMLElement).getByRole('button', { name: '取消' })
+    // fireEvent.click does not focus like a native click; the modal must restore its actual opener.
+    cancel.focus()
+    fireEvent.click(cancel)
     expect(await screen.findByRole('alertdialog')).toBeVisible()
     fireEvent.click(screen.getByRole('button', { name: '继续编辑' }))
+    await waitFor(() => expect(screen.getByTestId('magic-note-editor')).toHaveFocus())
     expect(document.querySelector('.magic-note-composer')).toHaveClass('magic-note-composer--active')
-    fireEvent.click(within(document.querySelector('.magic-note-composer') as HTMLElement).getByRole('button', { name: '取消' }))
+    cancel.focus()
+    fireEvent.click(cancel)
     fireEvent.click(await screen.findByRole('button', { name: '放弃草稿并切换' }))
     await waitFor(() => expect(document.querySelector('.magic-note-composer')).not.toHaveClass('magic-note-composer--active'))
     await waitFor(() => expect(document.getElementById(`magic-note-entry-${entryId}`)).toHaveFocus())