test(nuxt): Update Nuxt version and add Nitro $fetch test

[s1gr1d]

This PR adds the following:

• an E2E test case for Nitro $fetch requests
• Upgrading the Nuxt 4 version (previously in alpha)
• Deleting the app.vue file as this is not needed when using the app/pages directory (following the Nuxt docs)

[andreiborza]

l/m: Never heard of ungh.cc, do we want to depend on this in the e2e tests? Wonder if example.com is not better.

I remember we've had issues with example.com too tho, so not sure.

[Lms24]

I'd recommend avoiding external requests entirely and just intercept the request in playwright. Examaple:

sentry-javascript/dev-packages/browser-integration-tests/suites/integrations/Breadcrumbs/fetch/get/test.ts

Lines 9 to 19 in 162143f

	await page.route('**/foo', route => {
	return route.fulfill({
	status: 200,
	body: JSON.stringify({
	userNames: ['John', 'Jane'],
	}),
	headers: {
	'Content-Type': 'application/json',
	},
	});
	});

(not sure how consistent we are with this in e2e tests but this is what we do in the browser integration tests)

[s1gr1d]

That's the endpoint that Nitro uses in their examples: https://nitro.build/guide/fetch

But intercepting sounds like a good idea 👍

[s1gr1d]

Turns out it's not that straightforward to use page.route here. As the request is not made by the browser but the nitro server, it is not intercepted. And I cannot just call another Nitro server route as Nitro does not create a separate requests when it's within the server. For the test however, I want to specifically test calling an external API and example.com is okay for this case as the test does not fail if the endpoint cannot be reached. It's just about adding the span.

[github-actions]

node-overhead report 🧳

Note: This is a synthetic benchmark with a minimal express app and does not necessarily reflect the real-world performance impact in an application.

Scenario	Requests/s	% of Baseline	Prev. Requests/s	Change %
GET Baseline	9,130	-	9,362	-2%
GET With Sentry	1,378	15%	1,364	+1%
GET With Sentry (error only)	6,077	67%	6,234	-3%
POST Baseline	1,186	-	1,216	-2%
POST With Sentry	513	43%	530	-3%
POST With Sentry (error only)	1,053	89%	1,064	-1%
MYSQL Baseline	3,314	-	3,339	-1%
MYSQL With Sentry	451	14%	464	-3%
MYSQL With Sentry (error only)	2,666	80%	2,745	-3%

View base workflow run