Summary

This PR prepares the official AIKernel.NET v0.1.0 release.

AIKernel.NET v0.1.0 completes the Phase-1 contract baseline for the semantic runtime, fixing the public contract boundary for the core contract packages:

• AIKernel.Enums
• AIKernel.Dtos
• AIKernel.Contracts
• AIKernel.Abstractions

Changes

• Restore package version metadata to 0.1.0 for the official release.
• Generate release NuGet packages for AIKernel.NET contract packages.
• Keep AIKernel.NET as contract-only surface:
  • Abstractions and Contracts remain interface-only.
  • DTOs remain pure data carriers.
  • Enums remain dependency-free shared vocabulary.
• Preserve implementation/runtime behavior outside AIKernel.NET.

Verification

• Release build completed successfully.
• AIKernel.Abstractions.Tests passed.
• Generated NuGet packages:
  • AIKernel.Enums.0.1.0.nupkg
  • AIKernel.Dtos.0.1.0.nupkg
  • AIKernel.Contracts.0.1.0.nupkg
  • AIKernel.Abstractions.0.1.0.nupkg