Add GitHub Actions workflow for auto-deploy sample app

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: Mashrul Haque

.github/workflows/deploy-sample.yml

@@ -0,0 +1,20 @@
+name: Deploy Sample App
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Deploy to Server
+        uses: appleboy/[email protected]
+        with:
+          host: ${{ secrets.DEPLOY_HOST }}
+          username: ${{ secrets.DEPLOY_USER }}
+          key: ${{ secrets.DEPLOY_KEY }}
+          script: /home/mashrul/deploy-blazorstore.sh