- Add monitoring page with Grafana-style UI and real-time charts
- Implement Prometheus metrics API endpoint with comprehensive queries
- Add Chart.js for visualizing cluster metrics
- Include Overview, Resources, Kubernetes, and Network sections
- Support both production (Prometheus) and development (mock) data
- Add PROMETHEUS_URL environment variable to deployment
- Remove services/nextjs as git submodule
- Add complete Next.js application source code
- Include package.json and package-lock.json for npm cache
- This fixes the GitHub Actions cache error
