fix(ci): replace deprecated pages-action with wrangler-action

cloudflare/pages-action@v1 uses wrangler v2 which is EOL and returns
502 from the Cloudflare API. Switch to cloudflare/wrangler-action@v3
which uses current wrangler versions.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: matthew-on-git

.github/workflows/deploy.yml

@@ -40,12 +40,11 @@ jobs:
         run: hugo --minify
 
       - name: Deploy to Cloudflare Pages
-        uses: cloudflare/pages-action@v1
+        uses: cloudflare/wrangler-action@v3
         with:
           apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
           accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
-          projectName: devrail-dev
-          directory: public
+          command: pages deploy public --project-name=devrail-dev
 
 # Required secrets (configure in GitHub repository settings):
 #   CLOUDFLARE_API_TOKEN  - Cloudflare API token with Pages edit permission