add deploy CI

.github/workflows/deploy.yml

@@ -0,0 +1,25 @@
+name: Deploy to Cloudflare Pages
+
+on: [push]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    env:
+      CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Build
+        run: cd preview-ui && yarn install && yarn build
+
+      - name: Publish to Cloudflare Pages
+        if: env.CLOUDFLARE_API_TOKEN != ''
+        uses: cloudflare/pages-action@v1
+        with:
+          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
+          projectName: ${{ secrets.CLOUDFLARE_PROJECT_NAME }}
+          directory: ./preview-ui/dist