Add build and release workflow - #2

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4, actions/upload-artifact@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

The field CompactGUI.Core.Settings.Settings.scheduledBackgroundMinute is annotated with

The field CompactGUI.Core.Settings.Settings.scheduledBackgroundHour is annotated with

The field CompactGUI.Core.Settings.Settings.scheduledBackgroundInterval is annotated with

The field CompactGUI.Core.Settings.Settings.scheduledBackgroundLastRan is annotated with

Dereference of a possibly null reference.

Possible null reference argument for parameter 'sid' in 'bool SecurityIdentifier.Equals(SecurityIdentifier sid)'.

Possible null reference argument for parameter 'source' in 'ParallelQuery<AnalysedFileDetails> ParallelEnumerable.AsParallel<AnalysedFileDetails>(IEnumerable<AnalysedFileDetails> source)'.

Possible null reference return.

Cannot convert null literal to non-nullable reference type.