feat: add Playwright e2e tests for login page background

Agent-Logs-Url: https://github.com/nextcloud/unsplash/sessions/e614a94e-a2a4-4aa3-bbc2-6cac574430f9

Co-authored-by: skjnldsv <14975046+skjnldsv@users.noreply.github.com>

Author: Copilot

.github/workflows/playwright.yml

@@ -0,0 +1,61 @@
+# This workflow is provided via the organization template repository
+#
+# https://github.com/nextcloud/.github
+# https://docs.github.com/en/actions/learn-github-actions/sharing-workflows-with-your-organization
+#
+# SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+# SPDX-License-Identifier: MIT
+
+name: Playwright Tests
+
+on:
+  pull_request:
+    branches:
+      - main
+      - stable*
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    timeout-minutes: 60
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout app
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          persist-credentials: false
+
+      - name: Read package.json node and npm engines version
+        uses: skjnldsv/read-package-engines-version-actions@06d6baf7d8f41934ab630e97d9e6c0bc9c9ac5e4 # v3
+        id: versions
+        with:
+          fallbackNode: '^20'
+          fallbackNpm: '^10'
+
+      - name: Set up node ${{ steps.versions.outputs.nodeVersion }}
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        with:
+          node-version: ${{ steps.versions.outputs.nodeVersion }}
+
+      - name: Set up npm ${{ steps.versions.outputs.npmVersion }}
+        run: npm i -g 'npm@${{ steps.versions.outputs.npmVersion }}'
+
+      - name: Install node dependencies
+        run: npm ci
+
+      - name: Install Playwright Browsers
+        run: npx playwright install chromium --only-shell
+
+      - name: Run Playwright tests
+        run: npx playwright test
+
+      - name: Upload test results
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        if: always()
+        with:
+          name: playwright-report
+          path: test-results/
+          retention-days: 30

.gitignore

@@ -1,4 +1,5 @@
 build
 node_modules
-build
 unsplash
+/test-results/
+/playwright-report/

.nextcloudignore

@@ -10,3 +10,10 @@
 krankerl.toml
 Makefile
 screenshots
+node_modules
+package.json
+package-lock.json
+playwright
+playwright.config.ts
+test-results
+playwright-report