Fix rsync target to serve docs at /baflakehouse path

Update TARGET_DIR to /var/www/docs/baflakehouse/ so the pkgdown site
is served at https://docs.robwiederstein.org/baflakehouse via analytic's
Caddy gateway.

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

.gitea/workflows/deploy.yaml

@@ -56,7 +56,7 @@ jobs:
           SSH_PRIVATE_KEY: ${{ secrets.DEPLOY_SSH_KEY }}
           SERVER_IP: ${{ secrets.DEPLOY_SERVER_IP }}
           SERVER_USER: ${{ secrets.DEPLOY_SERVER_USER }}
-          TARGET_DIR: /var/www/docs/
+          TARGET_DIR: /var/www/docs/baflakehouse/
         run: |
           # Setup SSH key
           mkdir -p ~/.ssh