Add Docker deployment for Unraid

- Dockerfile with nginx:alpine for static file serving
- docker-compose.yml with port 9113:80 mapping
- deploy.sh for git-based deployment to Unraid
- setup-unraid.sh for initial server configuration
- manage.sh for container operations (logs, status, restart, etc.)
- .gitignore to exclude config.js

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,7 @@
+FROM nginx:alpine
+COPY index.html /usr/share/nginx/html/
+COPY styles.css /usr/share/nginx/html/
+COPY script.js /usr/share/nginx/html/
+COPY config.js /usr/share/nginx/html/
+RUN chmod 644 /usr/share/nginx/html/*.html /usr/share/nginx/html/*.css /usr/share/nginx/html/*.js
+EXPOSE 80