✨ New Feature - telemetry

[mfreeman451]

Telemetry System Implementation

This PR adds an optional telemetry system to Rayhunter.

Features Added

• Anonymous Device Identification: Generates a hash-based device ID with no personally identifiable information
• Configurable Data Collection:
  • System statistics (disk usage, memory usage)
  • Warning events with timestamps and severity
  • Recording information (duration, size, count)
• Privacy-Focused Design:
  • Disabled by default, requires explicit opt-in
  • No collection of raw network data
  • No personal information transmitted
• Web UI Configuration: Settings interface for enabling/disabling and configuring telemetry
• API Authentication: Uses API key for secure data transmission
• Periodic or Manual Transmission: Configurable transmission interval with option for manual triggers

Technical Implementation

• Background worker thread for data collection and transmission
• Non-blocking communication via channels
• Persistent configuration via config file
• Comprehensive error handling with new TelemetryInitError variant
• Full API documentation with rustdoc comments
• Example config for easy setup

Updates to Documentation

• Added README section on telemetry
• Created sample config file with telemetry settings
• Added detailed API documentation

Testing Notes

To test the telemetry system:

1. Enable telemetry in the config file
2. Set a valid endpoint and API key
3. View telemetry status in the web UI settings page
4. Trigger warnings to see telemetry capture in action

Telemetry can be easily enabled/disabled via the web UI or by editing the config file.

[mfreeman451]

lgtm