## System Metrics Collection
- Add SystemMetrics module with CPU, memory, disk, and system info collection
- Integrate Erlang :os_mon application (cpu_sup, memsup, disksup)
- Collect and format active system alarms with structured JSON output
- Replace simple "Hello" messages with rich system data in MQTT payloads
## MQTT Integration
- Update MqttClient to publish comprehensive metrics every 30 seconds
- Add :os_mon to application dependencies for system monitoring
- Maintain backward compatibility with existing dashboard consumption
## Documentation Updates
- Update CLAUDE.md with Phase 1 completion status and implementation details
- Completely rewrite README.md to reflect current project capabilities
- Document alarm format, architecture, and development workflow
## Technical Improvements
- Graceful error handling for metrics collection failures
- Clean alarm formatting: {severity, path/details, id}
- Dashboard automatically receives and displays real-time system data and alerts
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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