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>

docker-compose.yml

@@ -0,0 +1,7 @@
+services:
+  mischlabs:
+    build: .
+    container_name: mischlabs
+    restart: unless-stopped
+    ports:
+      - "8085:80"