Add test app to NPM workspace

.github/dependabot.yml

@@ -7,6 +7,8 @@ updates:
     # Check the npm registry for updates every day (weekdays)
     schedule:
       interval: "weekly"
+    # The following is required for workspaces to be updated: see https://github.com/dependabot/dependabot-core/issues/5226.
+    versioning-strategy: increase
     ignore:
       - dependency-name: "eslint"
         update-types: ["version-update:semver-major"]
@@ -23,20 +25,6 @@ updates:
         patterns:
           - "@types/*"
 
-  - package-ecosystem: "npm"
-    # Look for `package.json` and `lock` files in the `root` directory
-    directory: "/e2e/browser/test-app/"
-    # Check the npm registry for updates every day (weekdays)
-    schedule:
-      interval: "weekly"
-    ignore:
-      - dependency-name: "eslint"
-        update-types: ["version-update:semver-major"]
-    groups:
-      external-types:
-        patterns:
-          - "@types/*"
-
   # Enable version updates for the website tooling
   - package-ecosystem: "pip"
     # Look for `package.json` and `lock` files in the `root` directory

.github/workflows/e2e-browser.yml

@@ -26,7 +26,6 @@ jobs:
       - run: npm ci
       - run: npm run build
       - run: npx playwright install --with-deps
-      - run: npm run test:e2e:browser:setup
       - # Dependabot cannot access secrets, so it doesn't have a token to authenticate to ESS.
         # We want jobs in this workflow to be gating PRs, so the whole matrix must
         # run even for dependabot so that the matrixed jobs are skipped, instead

e2e/browser/test-app/.gitignore

@@ -33,3 +33,10 @@ yarn-error.log*
 
 # typescript
 *.tsbuildinfo
+
+# next 16.3+ generates these on `next dev`
+/AGENTS.md
+/CLAUDE.md
+
+# managed by Next.js, see https://nextjs.org/docs/app/api-reference/config/typescript#next-envdts
+next-env.d.ts