CI failure: "Electron failed to install correctly"

https://github.com/element-hq/element-web/actions/runs/28372988930/job/84055268201

```
⎯⎯⎯⎯⎯⎯ Failed Suites 2 ⎯⎯⎯⎯⎯⎯⎯

FAIL element-desktop src/args.test.ts [ apps/desktop/src/args.test.ts ]
FAIL element-desktop src/protocol.test.ts [ apps/desktop/src/protocol.test.ts ]
Error: Electron failed to install correctly. Please delete `node_modules/electron` and run "npx install-electron --no" manually.
❯ getElectronPath ../../node_modules/.pnpm/electron@42.4.1/node_modules/electron/index.js:43:13
❯ Object. ../../node_modules/.pnpm/electron@42.4.1/node_modules/electron/index.js:52:18

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯[1/2]⎯

Test Files 2 failed | 59 passed (61)
Tests 484 passed (484)
Start at 12:46:41
Duration 28.25s (transform 16.57s, setup 29.49s, import 28.79s, tests 7.31s, environment 4.71s)
```

Start with the linked CI run and the failing apps/desktop/src/args.test.ts and apps/desktop/src/protocol.test.ts suites. Check how Electron is installed in the CI environment, including the reported npx install-electron --no command, then rerun the affected tests. Done means the Electron installation succeeds and all 61 suites pass in CI.

Written by the indexing model from the issue text.