Add Kubernetes deployment manifests

[davesleal]

Description

Provide Kubernetes deployment manifests for scalable, production-grade deployment.

Proposed Files

• k8s/deployment.yaml - Bot deployment
• k8s/service.yaml - Service definition
• k8s/configmap.yaml - Configuration
• k8s/secret.yaml.example - Secrets template
• k8s/ingress.yaml - Optional ingress (for web dashboard)

Features

• Horizontal pod autoscaling
• Health checks and liveness probes
• Resource limits and requests
• ConfigMap for environment variables
• Secrets for API keys
• Persistent volume for logs/data

Example Deployment

kubectl apply -f k8s/
kubectl get pods -l app=slackclaw
kubectl logs -f deployment/slackclaw

Benefits

• Production-ready deployment
• Auto-scaling under load
• High availability
• Easy rollbacks