test(dashboard): migrate end-to-end tests to PlayWright

Assisted-by: ClaudeCode:claude-opus-5
Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>

Author: susnux

cypress/e2e/dashboard/widget-performance.cy.ts

@@ -0,0 +1,37 @@
+/*
+ * SPDX-FileCopyrightText: 2026 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+import { runOcc } from '@nextcloud/e2e-test-server'
+import { expect } from '@playwright/test'
+import { test } from '../../support/fixtures/random-user-session.ts'
+
+/** The endpoint the dashboard uses to load the data of its widgets. */
+const WIDGET_ITEMS_API = /\/dashboard\/api\/v2\/widget-items\?widgets/
+
+/**
+ * Regression test of https://github.com/nextcloud/server/issues/48403: the
+ * dashboard must only fetch data for the widgets it actually shows.
+ */
+test('dashboard: only loads the data of enabled widgets', async ({ page, user }) => {
+	// A layout with a single widget — so exactly one data request is expected
+	await runOcc(['user:setting', '--', user.userId, 'dashboard', 'layout', 'files-favorites'])
+
+	const requests: string[] = []
+	page.on('request', (request) => {
+		if (WIDGET_ITEMS_API.test(request.url())) {
+			requests.push(request.url())
+		}
+	})
+
+	const loaded = page.waitForResponse((r) => WIDGET_ITEMS_API.test(r.url()))
+	await page.goto('apps/dashboard')
+	await expect(page.getByRole('heading', { name: /Good (morning|afternoon|evening|night)/ })).toBeVisible()
+	await loaded
+
+	// Give any further (unwanted) widget request time to be fired …
+	await page.waitForTimeout(2000)
+	// … and confirm the favorites widget was the only one that loaded data
+	expect(requests).toHaveLength(1)
+})