Fix Ctrl+Z in Windows and Linux terminals (#13398)

* fix(terminal): preserve Windows undo chords

* fix(terminal): keep undo menu hints unregistered

src/main/menu/register-app-menu.test.ts

@@ -259,6 +259,26 @@ describe('registerAppMenu', () => {
     }
   )
 
+  it.each(['darwin', 'linux', 'win32'] as const)(
+    'preserves terminal undo and redo chords on %s',
+    (platform) => {
+      vi.spyOn(process, 'platform', 'get').mockReturnValue(platform)
+      registerAppMenu(buildMenuOptions())
+
+      const editSubmenu = getSubmenu(getTemplate(), 'Edit')
+      const expectedRegistration = platform === 'darwin' ? undefined : false
+      const undoItem = editSubmenu.find((item) => item.role === 'undo')
+      const redoItem = editSubmenu.find((item) => item.role === 'redo')
+
+      expect(undoItem?.accelerator).toBeUndefined()
+      expect(redoItem?.accelerator).toBeUndefined()
+      expect(undoItem && 'registerAccelerator' in undoItem).toBe(platform !== 'darwin')
+      expect(redoItem && 'registerAccelerator' in redoItem).toBe(platform !== 'darwin')
+      expect(undoItem?.registerAccelerator).toBe(expectedRegistration)
+      expect(redoItem?.registerAccelerator).toBe(expectedRegistration)
+    }
+  )
+
   it('keeps selection actions native in a focused guest webview', () => {
     const send = vi.fn()
     const guestContents = { copy: vi.fn(), selectAll: vi.fn() }

src/main/menu/register-app-menu.ts

@@ -167,11 +167,15 @@ function buildAndApplyMenu(options: RegisterAppMenuOptions): void {
     ]
   }
 
+  // Why: keep native menu hints while letting non-macOS Ctrl+Z/Ctrl+Y reach the focused terminal or DOM control.
+  const undoRedoOptions: Electron.MenuItemConstructorOptions = isMac
+    ? {}
+    : { registerAccelerator: false }
   const editMenu: Electron.MenuItemConstructorOptions = {
     label: translateMain('menu.edit', 'Edit'),
     submenu: [
-      { role: 'undo' },
-      { role: 'redo' },
+      { role: 'undo', ...undoRedoOptions },
+      { role: 'redo', ...undoRedoOptions },
       { type: 'separator' },
       { role: 'cut' },
       createAppMenuSelectionItem({