chore(desktop-e2e): add Playwright _electron E2E suite for the desktop app

[paustint]

Repurposes the unused jetstream-desktop-client-e2e scaffold (renamed to jetstream-desktop-e2e) into a real Electron-launching Playwright suite. Previously it only drove the renderer as a plain web page and never exercised the actual Electron shell.

• Launches the built main.js with an isolated --user-data-dir per test; auth is seeded by calling the same /desktop-app/auth/session + /verify endpoints the app itself uses, no browser/OS login UI driven
• Covers app launch, cross-origin window.open() -> shell.openExternal routing, authenticated boot, the Settings screen, a live Salesforce query round-trip, and first-pass adversarial coverage of the dataHistoryRequest/request() IPC surface (path traversal, host independence)
• Adds reusable ElectronApiClient/ElectronMainProcess fixtures to @jetstream/test/e2e-utils so a future security-fuzz suite can share them without rework
• Wires a new desktop-e2e CI job (Xvfb-wrapped, gated on the desktop projects being affected) — not yet added to the required e2e check pending a proven run
• Fixes global.setup.ts to grant the EXAMPLE_USER account's desktop entitlement: without it, initSession's MissingEntitlement redirect is silently followed by Playwright's request API, returning the login page's HTML where JSON was expected

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	@​salesforce-ux/​design-system-2@​2.264.1
	next@​16.3.1
	@​tanstack/​react-store@​0.11.1
	esbuild@​0.28.2
	@​react-email/​ui@​6.9.2
	chrome-types@​0.1.439
	@​types/​chrome@​0.2.6
	vite@​8.2.1
	oauth4webapi@​3.8.7
	papaparse@​5.6.0
	@​tailwindcss/​forms@​0.5.11
	oxfmt@​0.62.0 ⏵ 0.63.0			+1
	js-yaml@​5.3.0
	zod-openapi@​6.0.1
	pg@​8.23.0
	oxlint@​1.77.0 ⏵ 1.78.0	+1		+1
	react-email@​6.9.2
	@​marsidev/​react-turnstile@​1.6.0
	dexie@​4.4.5
	react-hook-form@​7.85.0
	@​sentry/​node@​10.70.0
	@​sentry/​react@​10.70.0
	@​tanstack/​react-table@​9.1.2
	electron@​43.4.0

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[socket-security]

Warning

Review the following alerts detected in dependencies.

According to your organization's Security Policy, it is recommended to resolve "Warn" alerts. Learn more about Socket for GitHub.

Action	Severity	Alert  (click "▶" to expand/collapse)
Warn		Obfuscated code: npm @sentry/node-core is 60.0% likely obfuscated Confidence: 0.60 Location: Package overview From: pnpm-lock.yaml → npm/@sentry/node@10.70.0 → npm/@sentry/node-core@10.70.0 ℹ Read more on: This package | This alert | What is obfuscated code? Next steps: Take a moment to review the security alert above. Review the linked package source code to understand the potential risk. Ensure the package is not malicious before proceeding. If you're unsure how to proceed, reach out to your security team or ask the Socket team for help at support@socket.dev. Suggestion: Packages should not obfuscate their code. Consider not using packages with obfuscated code. Mark the package as acceptable risk. To ignore this alert only in this pull request, reply with the comment @SocketSecurity ignore npm/@sentry/node-core@10.70.0. You can also ignore all packages with @SocketSecurity ignore-all. To ignore an alert for all future pull requests, use Socket's Dashboard to change the triage state of this alert.

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