Add Playwright end-to-end test setup

.github/workflows/ci.yml

@@ -0,0 +1,86 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  checks:
+    name: checks
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 24
+          cache: npm
+          cache-dependency-path: |
+            package-lock.json
+            web/package-lock.json
+
+      - name: Install root dependencies
+        run: npm ci
+
+      - name: Install frontend dependencies
+        run: npm ci
+        working-directory: web
+
+      - name: Run backend tests
+        run: npm run test:backend
+
+      - name: Run frontend tests
+        run: npm --prefix web test
+
+      - name: Build frontend
+        run: npm --prefix web run build
+
+  e2e:
+    name: e2e
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request' || github.ref == 'refs/heads/main'
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 24
+          cache: npm
+          cache-dependency-path: |
+            package-lock.json
+            web/package-lock.json
+
+      - name: Install root dependencies
+        run: npm ci
+
+      - name: Install frontend dependencies
+        run: npm ci
+        working-directory: web
+
+      - name: Install Playwright Chromium
+        run: npx playwright install --with-deps chromium
+
+      - name: Run end-to-end tests
+        run: npm run test:e2e
+
+      - name: Upload Playwright report
+        if: failure()
+        uses: actions/upload-artifact@v4
+        with:
+          name: playwright-report
+          path: playwright-report/
+          if-no-files-found: ignore
+
+      - name: Upload Playwright test results
+        if: failure()
+        uses: actions/upload-artifact@v4
+        with:
+          name: test-results
+          path: test-results/
+          if-no-files-found: ignore

.gitignore

@@ -1,3 +1,7 @@
 node_modules/
 /dist/
 data/*.db
+data/*.db-shm
+data/*.db-wal
+/playwright-report/
+/test-results/