Add Docker setup for containerized deployment

- Dockerfile with nginx:alpine for minimal image size
- docker-compose.yml with container name "mischlabs" on port 8085
- nginx.conf with static asset caching and security headers
- Updated Brain.md with deployment documentation

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

Dockerfile

@@ -0,0 +1,7 @@
+FROM nginx:alpine
+
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY index.html /usr/share/nginx/html/
+COPY style.css /usr/share/nginx/html/
+
+EXPOSE 80