New Feature
1- Add Cache-Control: no-store header to download endpoint to prevent stale file caching
Bug Fixes
5- Resolve connection timeout on large Docker stack backups (6GB+) using SSE keepalive events to prevent nginx idle timeout
- Fix nil slice panic with proper make([]string, 0) initialization
- Fix stack name validation that incorrectly allowed single dot character
- Fix Docker Compose v2/v1 fallback detection
- Add Set-ExecutionPolicy Bypass to PowerShell restore script to prevent unsigned script errors on Windows