fix(ci): restore @opennextjs/cloudflare build step

Author: rgilks

.github/workflows/deploy.yml

@@ -37,11 +37,15 @@ jobs:
       - name: Build Wasm Assets
         run: npm run build:wasm-assets
 
-      - name: Deploy Frontend
-        run: npm run deploy:cf
-        env:
-          CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
-          CLOUDFLARE_ACCOUNT_ID: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
+      - name: Build Next.js application
+        run: npx @opennextjs/cloudflare build
+
+      - name: Deploy Next.js to Cloudflare Pages
+        uses: cloudflare/wrangler-action@v3
+        with:
+          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
+          command: pages deploy .open-next --project-name=rgou-main --branch=main
 
       - name: Deploy AI Worker to Cloudflare Workers
         run: npm run deploy:worker