Module download 

Secure snapshot downloading with HTTP/HTTPS and local file support.

Provides robust download capabilities for snapshot archives with:

• URL Support: HTTP/HTTPS with retry logic, local file:// URLs
• Safety: Size limits, timeout protection, disk space validation
• Reliability: Exponential backoff, progress tracking, error recovery
• Cross-platform: Uses sysinfo for disk space checking

Structs

DownloadConfig

Configuration for snapshot downloads with safety limits.

SnapshotDownloader

Downloads snapshot archives from HTTP/HTTPS and file:// URLs.