Update workflow to inject S3 bucket name into deployment script

- Workflow now updates deploy.sh with the actual S3 bucket name before uploading
- Add S3_BUCKET_NAME=none override option to README for local-only deployment
- Update README to show both ARM64 and x86_64 support

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

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

.forgejo/workflows/deploy-scripts.yml

@@ -27,10 +27,16 @@ jobs:
           aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
           aws-region: ${{ secrets.AWS_REGION }}
 
+      - name: Update deployment script with S3 bucket name
+        run: |
+          # Create a copy of deploy.sh with the S3 bucket name updated
+          cp scripts/deploy.sh /tmp/deploy.sh
+          sed -i 's/S3_BUCKET_NAME="${S3_BUCKET_NAME:-ice-puremichigan-lol}"/S3_BUCKET_NAME="${S3_BUCKET_NAME:-${{ secrets.S3_BUCKET_NAME }}}"/' /tmp/deploy.sh
+          
       - name: Upload deployment script to S3
         run: |
-          # Upload the main deployment script
-          aws s3 cp scripts/deploy.sh s3://${{ secrets.S3_BUCKET_NAME }}/scripts/deploy.sh \
+          # Upload the updated deployment script
+          aws s3 cp /tmp/deploy.sh s3://${{ secrets.S3_BUCKET_NAME }}/scripts/deploy.sh \
             --content-type "text/plain" \
             --cache-control "max-age=300" \
             --metadata-directive REPLACE \