[Docs] Create Production Deployment Guide #16

Missing Information

• Scaling recommendations
• Database backups
• Monitoring setup
• Alerting configuration
• High availability setup
• Load balancer config

Files to Create

• DEPLOYMENT.md (root directory)

Acceptance Criteria

• Scaling guide (horizontal/vertical)
• Backup strategy documented
• Monitoring/alerting setup
• High availability architecture
• Example Kubernetes manifests (optional)
• Troubleshooting guide