test(app/e2e): add desktop-updates spec covering update banner and daemon lifecycle (cluster G4) (#733)

* test(app/e2e): add desktop-updates spec covering update banner and daemon lifecycle (cluster G4)

Adds a new Electron-only E2E spec and companion helper module covering:
- Update callout renders with correct version and shows Installing… on click
- Daemon management toggle confirm dialog copy, cancel, and confirm flows
- Daemon status panel seeded from the real running E2E daemon (version, PID, log path)
- Stopping then re-enabling management observes a fresh PID from the stateful IPC mock

Exports E2E_PASEO_HOME from globalSetup so tests can read the paseo.pid lock file
and derive the daemon log path without hardcoding paths.

* fix(app/e2e): address PR review blockers on desktop-updates spec

Blocker 1 — ARIA for install button: replace index-based testId locators
in clickInstallUpdate and expectInstallInProgress with getByRole("button")
using the accessible name ("Install & restart" / "Installing...").

Blocker 2 — Electron dialog path: add dialog.ask to the mock bridge so
confirmDialog() hits the Electron code path instead of falling back to
window.confirm. The mock stores captured args on window.__capturedDialogCall;
interceptDaemonManagementConfirmDialog reads them via waitForFunction+evaluate.
Add confirmShouldAccept config flag so tests control accept/dismiss without
a Playwright dialog event. Update all daemon management tests to set the flag.

Also: console.warn on PID file read failure, comment explaining the no-Electron-
runner approach, rename dialog → dialogArgs at call sites.

packages/app/e2e/global-setup.ts

@@ -705,6 +705,7 @@ export default async function globalSetup() {
     process.env.E2E_SERVER_ID = offer.serverId;
     process.env.E2E_RELAY_DAEMON_PUBLIC_KEY = offer.daemonPublicKeyB64;
     process.env.E2E_METRO_PORT = String(metroPort);
+    process.env.E2E_PASEO_HOME = paseoHome;
     console.log(
       `[e2e] Test daemon started on port ${port}, Metro on port ${metroPort}, home: ${paseoHome}`,
     );