Uptime Container Demo

Available endpoints:
- GET /uptime/:id - Get uptime from specific container instance
- GET /uptime-lb - Load balanced uptime check across containers
- GET /uptime-singleton - Get uptime from singleton container
- GET /health - Health check endpoint

This demo executes the 'uptime' system command in containerized environments.

Features:
- System command execution in isolated containers
- Load balancing across multiple container instances  
- Auto-scaling containers that sleep after inactivity
- Container lifecycle management with status hooks
- Built with Cloudflare Workers + Containers (Beta)
- Deployed using Finch as Docker replacement

Container Details:
- Node.js + Alpine Linux environment
- Express server handling uptime command execution
- Container ID and timestamp included in responses
- Health monitoring and error handling