Restart-PveContainer gained ConfirmImpact.High in the F062 fix, which
correctly prompts for confirmation on destructive operations. The
integration test was missing -Confirm:$false, causing a
NullReferenceException in non-interactive CI. The cascading failure also
broke the Copy-PveContainer test (F081).
Also updates CONTRIBUTING.md to reference .NET SDK 10.0+ (was 9.0+) to
match all CI workflows and test project TFM (F083).
Includes scan-6 review report and findings database update (F001-F083).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>