Add production Docker deployment configuration and updated deployment guide

- Add docker-compose.yml with production-ready configuration including auto-restart, health checks, resource limits, and security hardening
- Completely rewrite DEPLOYMENT_GUIDE.md from smart contract deployment to comprehensive Docker/L2 MEV bot deployment guide
- New guide includes Docker deployment, systemd integration, monitoring setup with Prometheus/Grafana, performance optimization, security configuration, and troubleshooting
- Configuration supports environment-based setup with .env file integration

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

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

docker-compose.yml

@@ -0,0 +1,43 @@
+version: '3.8'
+
+services:
+  mev-bot:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: mev-bot:latest
+    container_name: mev-bot-production
+    restart: always
+    volumes:
+      # Mount only the config file for production
+      - ./config/config.production.yaml:/app/config/config.yaml:ro
+      # Optional: mount a directory for logs if needed
+      # - ./logs:/app/logs
+    environment:
+      - LOG_LEVEL=${LOG_LEVEL:-info}
+      - ARBITRUM_RPC_ENDPOINT=${ARBITRUM_RPC_ENDPOINT:-https://arbitrum-rpc.publicnode.com}
+      # Add any other environment variables from .env file
+    env_file:
+      - .env
+    ports:
+      - "${PORT:-8080}:8080"
+    command: ["start"]
+    # Health check to ensure the bot is running properly
+    healthcheck:
+      test: ["CMD-SHELL", "pgrep -f mev-bot || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+    # Security options
+    security_opt:
+      - no-new-privileges:true
+    # Resource limits (adjust as needed)
+    deploy:
+      resources:
+        limits:
+          cpus: '2'
+          memory: 2G
+        reservations:
+          cpus: '0.5'
+          memory: 512M