refactor: Migrate webviews from React 16 + react-bootstrap to React 19 + @vscode-elements/elements

.github/workflows/pr-ui-autotest.yml

@@ -0,0 +1,51 @@
+name: PR UI AutoTest
+
+on:
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  ui-test:
+    runs-on: windows-latest
+    timeout-minutes: 30
+
+    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: Build extension
+        run: npm run build
+
+      - name: Package PR VSIX
+        run: npx @vscode/vsce@latest package -o extension.vsix
+
+      - name: Install autotest CLI
+        run: npm install -g @vscjava/vscode-autotest
+
+      - name: Run Help Center webview UI test
+        shell: pwsh
+        run: |
+          $vsixPath = Join-Path (Get-Location) "extension.vsix"
+          autotest run test-plans\java-pack-help-center-webview.yaml --vsix $vsixPath --no-llm
+
+      - name: Upload UI test results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: pr-ui-autotest-results
+          path: test-results/
+          retention-days: 30