2.1.0

Bug fixes for timezone handling and restart behavior, plus new TimeProvider support for testability on net8.0+.

Improvements

• Add TimeProvider support on net8.0+ — pass an optional TimeProvider to the constructor for deterministic testing with FakeTimeProvider (e841bb3)
• Add net8.0 target framework to the NuGet package (e841bb3)
• Include README in NuGet package via PackageReadmeFile (5127b39)

Bug fixes

• Fix timezone conversion using configured timezone instead of system timezone — ToUniversalTime() incorrectly used the host timezone, causing wrong firing times when the host timezone differs from the configured one (522efd4)
• Fix Start/Stop/Start skipping an interval — restarting the timer now recalculates the next occurrence from the current time (84f169f)

Package dependencies

• Bump ncrontab from 3.3.1 to 3.4.0 (#2)
• Bump TimeZoneConverter from 6.0.1 to 7.2.0 (#1)

Internal

• Add SourceLink for debugger source mapping (579e119)
• Condition ContinuousIntegrationBuild on CI only (579e119)
• Remove broken PackageProjectUrl and redundant IncludeSource (579e119)
• Migrate to .slnx solution format (98a64d7)
• Use MinVer for version derivation from git tags (ef739e7)
• Add justfile with build, test, and pack recipes (7ed9536)
• Add GitHub Actions CI workflow with Ubuntu and Windows jobs (7ed9536, 6e72f0e)
• Add NUnit test project with TimeProvider-based testing (df7ca81)
• Bump Microsoft.Extensions.TimeProvider.Testing from 9.0.0 to 10.3.0
• Bump Microsoft.NET.Test.Sdk from 17.12.0 to 18.0.1
• Bump Microsoft.SourceLink.GitHub from 8.0.0 to 10.0.103
• Bump MinVer from 6.0.0 to 7.0.0
• Bump NUnit from 4.3.2 to 4.4.0
• Bump NUnit3TestAdapter from 4.6.0 to 6.1.0