Add GitHub Actions CI: build + Playwright e2e on every PR into master

.github/workflows/ci.yml

@@ -0,0 +1,38 @@
+name: CI
+
+on:
+  pull_request:
+    branches: [master]
+  push:
+    branches: [master, dev]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build library
+        run: npm run build
+
+      - name: Install Playwright browsers
+        run: npx playwright install --with-deps chromium
+
+      - name: Run e2e tests
+        run: npm run test:e2e
+
+      - name: Upload Playwright report
+        if: failure()
+        uses: actions/upload-artifact@v4
+        with:
+          name: playwright-report
+          path: playwright-report/
+          retention-days: 7

.gitignore

@@ -109,4 +109,6 @@ Thumbs.db
 # track these files, if they exist
 !.gitignore
 !.editorconfig
-!.phpcs.xml.dist
+!.phpcs.xml.dist
+!.github
+!.github/**

playwright.config.ts

@@ -3,7 +3,7 @@ import { defineConfig } from '@playwright/test'
 export default defineConfig({
     testDir: './e2e',
     fullyParallel: true,
-    reporter: 'list',
+    reporter: process.env.CI ? 'github' : 'list',
     use: {
         baseURL: 'http://localhost:4321',
     },