test(ci): add visual regression testing workflow

Solution-ID: SOL-1735410002

Issue-ID: ISS-1766921318981-22

Task-ID: T4

.github/workflows/visual-tests.yml

@@ -0,0 +1,41 @@
+name: Visual Regression Tests
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  visual-tests:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Install Playwright browsers
+        run: npx playwright install --with-deps chromium
+
+      - name: Run visual tests
+        run: npm run test:visual
+
+      - name: Upload visual artifacts on failure
+        if: failure()
+        uses: actions/upload-artifact@v4
+        with:
+          name: visual-regression-artifacts
+          path: |
+            ccw/tests/visual/snapshots/current
+            ccw/tests/visual/snapshots/diff
+          retention-days: 7